author | Chris Kirby <Chris.Kirby@oracle.com> |
Thu, 10 Jun 2010 15:46:47 -0600 | |
changeset 12605 | 6790e683d5a5 |
parent 12421 | d38fccc4d212 |
child 12620 | 12fcd99a642d |
permissions | -rw-r--r-- |
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/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
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* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
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*/ |
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/* Portions Copyright 2007 Jeremy Teo */ |
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/* Portions Copyright 2010 Robert Milkowski */ |
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789 | 28 |
#include <sys/types.h> |
29 |
#include <sys/param.h> |
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#include <sys/time.h> |
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#include <sys/systm.h> |
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#include <sys/sysmacros.h> |
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#include <sys/resource.h> |
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#include <sys/vfs.h> |
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#include <sys/vfs_opreg.h> |
789 | 36 |
#include <sys/vnode.h> |
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#include <sys/file.h> |
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#include <sys/stat.h> |
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#include <sys/kmem.h> |
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#include <sys/taskq.h> |
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#include <sys/uio.h> |
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#include <sys/vmsystm.h> |
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#include <sys/atomic.h> |
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#include <sys/vm.h> |
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#include <vm/seg_vn.h> |
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#include <vm/pvn.h> |
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#include <vm/as.h> |
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#include <vm/kpm.h> |
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#include <vm/seg_kpm.h> |
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#include <sys/mman.h> |
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#include <sys/pathname.h> |
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#include <sys/cmn_err.h> |
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#include <sys/errno.h> |
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#include <sys/unistd.h> |
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#include <sys/zfs_dir.h> |
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#include <sys/zfs_acl.h> |
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#include <sys/zfs_ioctl.h> |
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#include <sys/fs/zfs.h> |
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#include <sys/dmu.h> |
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#include <sys/dmu_objset.h> |
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#include <sys/spa.h> |
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#include <sys/txg.h> |
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#include <sys/dbuf.h> |
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#include <sys/zap.h> |
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#include <sys/sa.h> |
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#include <sys/dirent.h> |
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#include <sys/policy.h> |
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#include <sys/sunddi.h> |
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#include <sys/filio.h> |
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#include <sys/sid.h> |
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#include "fs/fs_subr.h" |
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#include <sys/zfs_ctldir.h> |
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#include <sys/zfs_fuid.h> |
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#include <sys/zfs_sa.h> |
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#include <sys/dnlc.h> |
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#include <sys/zfs_rlock.h> |
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#include <sys/extdirent.h> |
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#include <sys/kidmap.h> |
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#include <sys/cred.h> |
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#include <sys/attr.h> |
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/* |
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* Programming rules. |
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* |
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* Each vnode op performs some logical unit of work. To do this, the ZPL must |
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* properly lock its in-core state, create a DMU transaction, do the work, |
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* record this work in the intent log (ZIL), commit the DMU transaction, |
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* and wait for the intent log to commit if it is a synchronous operation. |
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* Moreover, the vnode ops must work in both normal and log replay context. |
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* The ordering of events is important to avoid deadlocks and references |
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* to freed memory. The example below illustrates the following Big Rules: |
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* |
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* (1) A check must be made in each zfs thread for a mounted file system. |
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* This is done avoiding races using ZFS_ENTER(zfsvfs). |
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* A ZFS_EXIT(zfsvfs) is needed before all returns. Any znodes |
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* must be checked with ZFS_VERIFY_ZP(zp). Both of these macros |
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* can return EIO from the calling function. |
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* |
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* (2) VN_RELE() should always be the last thing except for zil_commit() |
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* (if necessary) and ZFS_EXIT(). This is for 3 reasons: |
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* First, if it's the last reference, the vnode/znode |
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* can be freed, so the zp may point to freed memory. Second, the last |
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* reference will call zfs_zinactive(), which may induce a lot of work -- |
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* pushing cached pages (which acquires range locks) and syncing out |
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* cached atime changes. Third, zfs_zinactive() may require a new tx, |
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* which could deadlock the system if you were already holding one. |
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* If you must call VN_RELE() within a tx then use VN_RELE_ASYNC(). |
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* |
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* (3) All range locks must be grabbed before calling dmu_tx_assign(), |
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* as they can span dmu_tx_assign() calls. |
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* |
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* (4) Always pass TXG_NOWAIT as the second argument to dmu_tx_assign(). |
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* This is critical because we don't want to block while holding locks. |
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* Note, in particular, that if a lock is sometimes acquired before |
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* the tx assigns, and sometimes after (e.g. z_lock), then failing to |
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* use a non-blocking assign can deadlock the system. The scenario: |
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* |
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* Thread A has grabbed a lock before calling dmu_tx_assign(). |
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* Thread B is in an already-assigned tx, and blocks for this lock. |
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* Thread A calls dmu_tx_assign(TXG_WAIT) and blocks in txg_wait_open() |
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* forever, because the previous txg can't quiesce until B's tx commits. |
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* |
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* If dmu_tx_assign() returns ERESTART and zfsvfs->z_assign is TXG_NOWAIT, |
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* then drop all locks, call dmu_tx_wait(), and try again. |
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* |
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* (5) If the operation succeeded, generate the intent log entry for it |
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* before dropping locks. This ensures that the ordering of events |
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* in the intent log matches the order in which they actually occurred. |
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* During ZIL replay the zfs_log_* functions will update the sequence |
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* number to indicate the zil transaction has replayed. |
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* |
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* (6) At the end of each vnode op, the DMU tx must always commit, |
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* regardless of whether there were any errors. |
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* |
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* (7) After dropping all locks, invoke zil_commit(zilog, seq, foid) |
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* to ensure that synchronous semantics are provided when necessary. |
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* |
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* In general, this is how things should be ordered in each vnode op: |
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* |
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* ZFS_ENTER(zfsvfs); // exit if unmounted |
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* top: |
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* zfs_dirent_lock(&dl, ...) // lock directory entry (may VN_HOLD()) |
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* rw_enter(...); // grab any other locks you need |
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* tx = dmu_tx_create(...); // get DMU tx |
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* dmu_tx_hold_*(); // hold each object you might modify |
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* error = dmu_tx_assign(tx, TXG_NOWAIT); // try to assign |
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* if (error) { |
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* rw_exit(...); // drop locks |
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* zfs_dirent_unlock(dl); // unlock directory entry |
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* VN_RELE(...); // release held vnodes |
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* if (error == ERESTART) { |
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* dmu_tx_wait(tx); |
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* dmu_tx_abort(tx); |
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* goto top; |
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* } |
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* dmu_tx_abort(tx); // abort DMU tx |
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* ZFS_EXIT(zfsvfs); // finished in zfs |
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* return (error); // really out of space |
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* } |
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* error = do_real_work(); // do whatever this VOP does |
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* if (error == 0) |
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* zfs_log_*(...); // on success, make ZIL entry |
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* dmu_tx_commit(tx); // commit DMU tx -- error or not |
164 |
* rw_exit(...); // drop locks |
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* zfs_dirent_unlock(dl); // unlock directory entry |
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* VN_RELE(...); // release held vnodes |
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* zil_commit(zilog, seq, foid); // synchronous when necessary |
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* ZFS_EXIT(zfsvfs); // finished in zfs |
169 |
* return (error); // done, report error |
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*/ |
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/* ARGSUSED */ |
173 |
static int |
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zfs_open(vnode_t **vpp, int flag, cred_t *cr, caller_context_t *ct) |
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{ |
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znode_t *zp = VTOZ(*vpp); |
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zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
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ZFS_ENTER(zfsvfs); |
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ZFS_VERIFY_ZP(zp); |
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if ((flag & FWRITE) && (zp->z_pflags & ZFS_APPENDONLY) && |
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((flag & FAPPEND) == 0)) { |
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184 |
ZFS_EXIT(zfsvfs); |
5331 | 185 |
return (EPERM); |
186 |
} |
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187 |
||
188 |
if (!zfs_has_ctldir(zp) && zp->z_zfsvfs->z_vscan && |
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189 |
ZTOV(zp)->v_type == VREG && |
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!(zp->z_pflags & ZFS_AV_QUARANTINED) && zp->z_size > 0) { |
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if (fs_vscan(*vpp, cr, 0) != 0) { |
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192 |
ZFS_EXIT(zfsvfs); |
5331 | 193 |
return (EACCES); |
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} |
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} |
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/* Keep a count of the synchronous opens in the znode */ |
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if (flag & (FSYNC | FDSYNC)) |
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atomic_inc_32(&zp->z_sync_cnt); |
5331 | 200 |
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201 |
ZFS_EXIT(zfsvfs); |
789 | 202 |
return (0); |
203 |
} |
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204 |
||
205 |
/* ARGSUSED */ |
|
206 |
static int |
|
5331 | 207 |
zfs_close(vnode_t *vp, int flag, int count, offset_t offset, cred_t *cr, |
208 |
caller_context_t *ct) |
|
789 | 209 |
{ |
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znode_t *zp = VTOZ(vp); |
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zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
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/* |
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* Clean up any locks held by this process on the vp. |
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215 |
*/ |
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216 |
cleanlocks(vp, ddi_get_pid(), 0); |
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217 |
cleanshares(vp, ddi_get_pid()); |
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ZFS_ENTER(zfsvfs); |
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ZFS_VERIFY_ZP(zp); |
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|
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222 |
/* Decrement the synchronous opens in the znode */ |
4339 | 223 |
if ((flag & (FSYNC | FDSYNC)) && (count == 1)) |
3063
b252896b372b
6341569 zio_alloc_blk() vdev distribution performs badly
perrin
parents:
2796
diff
changeset
|
224 |
atomic_dec_32(&zp->z_sync_cnt); |
b252896b372b
6341569 zio_alloc_blk() vdev distribution performs badly
perrin
parents:
2796
diff
changeset
|
225 |
|
5331 | 226 |
if (!zfs_has_ctldir(zp) && zp->z_zfsvfs->z_vscan && |
227 |
ZTOV(zp)->v_type == VREG && |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
228 |
!(zp->z_pflags & ZFS_AV_QUARANTINED) && zp->z_size > 0) |
5331 | 229 |
VERIFY(fs_vscan(vp, cr, 1) == 0); |
230 |
||
7844
effed23820ae
6755435 zfs_open() and zfs_close() needs to use ZFS_ENTER/ZFS_VERIFY_ZP
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7757
diff
changeset
|
231 |
ZFS_EXIT(zfsvfs); |
789 | 232 |
return (0); |
233 |
} |
|
234 |
||
235 |
/* |
|
236 |
* Lseek support for finding holes (cmd == _FIO_SEEK_HOLE) and |
|
237 |
* data (cmd == _FIO_SEEK_DATA). "off" is an in/out parameter. |
|
238 |
*/ |
|
239 |
static int |
|
240 |
zfs_holey(vnode_t *vp, int cmd, offset_t *off) |
|
241 |
{ |
|
242 |
znode_t *zp = VTOZ(vp); |
|
243 |
uint64_t noff = (uint64_t)*off; /* new offset */ |
|
244 |
uint64_t file_sz; |
|
245 |
int error; |
|
246 |
boolean_t hole; |
|
247 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
248 |
file_sz = zp->z_size; |
789 | 249 |
if (noff >= file_sz) { |
250 |
return (ENXIO); |
|
251 |
} |
|
252 |
||
253 |
if (cmd == _FIO_SEEK_HOLE) |
|
254 |
hole = B_TRUE; |
|
255 |
else |
|
256 |
hole = B_FALSE; |
|
257 |
||
258 |
error = dmu_offset_next(zp->z_zfsvfs->z_os, zp->z_id, hole, &noff); |
|
259 |
||
260 |
/* end of file? */ |
|
261 |
if ((error == ESRCH) || (noff > file_sz)) { |
|
262 |
/* |
|
263 |
* Handle the virtual hole at the end of file. |
|
264 |
*/ |
|
265 |
if (hole) { |
|
266 |
*off = file_sz; |
|
267 |
return (0); |
|
268 |
} |
|
269 |
return (ENXIO); |
|
270 |
} |
|
271 |
||
272 |
if (noff < *off) |
|
273 |
return (error); |
|
274 |
*off = noff; |
|
275 |
return (error); |
|
276 |
} |
|
277 |
||
278 |
/* ARGSUSED */ |
|
279 |
static int |
|
280 |
zfs_ioctl(vnode_t *vp, int com, intptr_t data, int flag, cred_t *cred, |
|
5331 | 281 |
int *rvalp, caller_context_t *ct) |
789 | 282 |
{ |
283 |
offset_t off; |
|
284 |
int error; |
|
285 |
zfsvfs_t *zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
286 |
znode_t *zp; |
789 | 287 |
|
288 |
switch (com) { |
|
4339 | 289 |
case _FIOFFS: |
789 | 290 |
return (zfs_sync(vp->v_vfsp, 0, cred)); |
291 |
||
1544 | 292 |
/* |
293 |
* The following two ioctls are used by bfu. Faking out, |
|
294 |
* necessary to avoid bfu errors. |
|
295 |
*/ |
|
4339 | 296 |
case _FIOGDIO: |
297 |
case _FIOSDIO: |
|
1544 | 298 |
return (0); |
299 |
||
4339 | 300 |
case _FIO_SEEK_DATA: |
301 |
case _FIO_SEEK_HOLE: |
|
789 | 302 |
if (ddi_copyin((void *)data, &off, sizeof (off), flag)) |
303 |
return (EFAULT); |
|
304 |
||
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
305 |
zp = VTOZ(vp); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
306 |
zfsvfs = zp->z_zfsvfs; |
5367 | 307 |
ZFS_ENTER(zfsvfs); |
308 |
ZFS_VERIFY_ZP(zp); |
|
789 | 309 |
|
310 |
/* offset parameter is in/out */ |
|
311 |
error = zfs_holey(vp, com, &off); |
|
312 |
ZFS_EXIT(zfsvfs); |
|
313 |
if (error) |
|
314 |
return (error); |
|
315 |
if (ddi_copyout(&off, (void *)data, sizeof (off), flag)) |
|
316 |
return (EFAULT); |
|
317 |
return (0); |
|
318 |
} |
|
319 |
return (ENOTTY); |
|
320 |
} |
|
321 |
||
322 |
/* |
|
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
323 |
* Utility functions to map and unmap a single physical page. These |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
324 |
* are used to manage the mappable copies of ZFS file data, and therefore |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
325 |
* do not update ref/mod bits. |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
326 |
*/ |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
327 |
caddr_t |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
328 |
zfs_map_page(page_t *pp, enum seg_rw rw) |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
329 |
{ |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
330 |
if (kpm_enable) |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
331 |
return (hat_kpm_mapin(pp, 0)); |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
332 |
ASSERT(rw == S_READ || rw == S_WRITE); |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
333 |
return (ppmapin(pp, PROT_READ | ((rw == S_WRITE) ? PROT_WRITE : 0), |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
334 |
(caddr_t)-1)); |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
335 |
} |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
336 |
|
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
337 |
void |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
338 |
zfs_unmap_page(page_t *pp, caddr_t addr) |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
339 |
{ |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
340 |
if (kpm_enable) { |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
341 |
hat_kpm_mapout(pp, 0, addr); |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
342 |
} else { |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
343 |
ppmapout(addr); |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
344 |
} |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
345 |
} |
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
346 |
|
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
347 |
/* |
789 | 348 |
* When a file is memory mapped, we must keep the IO data synchronized |
349 |
* between the DMU cache and the memory mapped pages. What this means: |
|
350 |
* |
|
351 |
* On Write: If we find a memory mapped page, we write to *both* |
|
352 |
* the page and the dmu buffer. |
|
353 |
*/ |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
354 |
static void |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
355 |
update_pages(vnode_t *vp, int64_t start, int len, objset_t *os, uint64_t oid) |
789 | 356 |
{ |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
357 |
int64_t off; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
358 |
|
789 | 359 |
off = start & PAGEOFFSET; |
360 |
for (start &= PAGEMASK; len > 0; start += PAGESIZE) { |
|
361 |
page_t *pp; |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
362 |
uint64_t nbytes = MIN(PAGESIZE - off, len); |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
363 |
|
789 | 364 |
if (pp = page_lookup(vp, start, SE_SHARED)) { |
365 |
caddr_t va; |
|
366 |
||
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
367 |
va = zfs_map_page(pp, S_WRITE); |
9512
64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9412
diff
changeset
|
368 |
(void) dmu_read(os, oid, start+off, nbytes, va+off, |
64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9412
diff
changeset
|
369 |
DMU_READ_PREFETCH); |
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
370 |
zfs_unmap_page(pp, va); |
789 | 371 |
page_unlock(pp); |
372 |
} |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
373 |
len -= nbytes; |
789 | 374 |
off = 0; |
375 |
} |
|
376 |
} |
|
377 |
||
378 |
/* |
|
379 |
* When a file is memory mapped, we must keep the IO data synchronized |
|
380 |
* between the DMU cache and the memory mapped pages. What this means: |
|
381 |
* |
|
382 |
* On Read: We "read" preferentially from memory mapped pages, |
|
383 |
* else we default from the dmu buffer. |
|
384 |
* |
|
385 |
* NOTE: We will always "break up" the IO into PAGESIZE uiomoves when |
|
386 |
* the file is memory mapped. |
|
387 |
*/ |
|
388 |
static int |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
389 |
mappedread(vnode_t *vp, int nbytes, uio_t *uio) |
789 | 390 |
{ |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
391 |
znode_t *zp = VTOZ(vp); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
392 |
objset_t *os = zp->z_zfsvfs->z_os; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
393 |
int64_t start, off; |
789 | 394 |
int len = nbytes; |
395 |
int error = 0; |
|
396 |
||
397 |
start = uio->uio_loffset; |
|
398 |
off = start & PAGEOFFSET; |
|
399 |
for (start &= PAGEMASK; len > 0; start += PAGESIZE) { |
|
400 |
page_t *pp; |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
401 |
uint64_t bytes = MIN(PAGESIZE - off, len); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
402 |
|
789 | 403 |
if (pp = page_lookup(vp, start, SE_SHARED)) { |
404 |
caddr_t va; |
|
405 |
||
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
406 |
va = zfs_map_page(pp, S_READ); |
789 | 407 |
error = uiomove(va + off, bytes, UIO_READ, uio); |
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
408 |
zfs_unmap_page(pp, va); |
789 | 409 |
page_unlock(pp); |
410 |
} else { |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
411 |
error = dmu_read_uio(os, zp->z_id, uio, bytes); |
789 | 412 |
} |
413 |
len -= bytes; |
|
414 |
off = 0; |
|
415 |
if (error) |
|
416 |
break; |
|
417 |
} |
|
418 |
return (error); |
|
419 |
} |
|
420 |
||
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
421 |
offset_t zfs_read_chunk_size = 1024 * 1024; /* Tunable */ |
789 | 422 |
|
423 |
/* |
|
424 |
* Read bytes from specified file into supplied buffer. |
|
425 |
* |
|
426 |
* IN: vp - vnode of file to be read from. |
|
427 |
* uio - structure supplying read location, range info, |
|
428 |
* and return buffer. |
|
429 |
* ioflag - SYNC flags; used to provide FRSYNC semantics. |
|
430 |
* cr - credentials of caller. |
|
5331 | 431 |
* ct - caller context |
789 | 432 |
* |
433 |
* OUT: uio - updated offset and range, buffer filled. |
|
434 |
* |
|
435 |
* RETURN: 0 if success |
|
436 |
* error code if failure |
|
437 |
* |
|
438 |
* Side Effects: |
|
439 |
* vp - atime updated if byte count > 0 |
|
440 |
*/ |
|
441 |
/* ARGSUSED */ |
|
442 |
static int |
|
443 |
zfs_read(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) |
|
444 |
{ |
|
445 |
znode_t *zp = VTOZ(vp); |
|
446 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
447 |
objset_t *os; |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
448 |
ssize_t n, nbytes; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
449 |
int error; |
1669 | 450 |
rl_t *rl; |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
451 |
xuio_t *xuio = NULL; |
789 | 452 |
|
5367 | 453 |
ZFS_ENTER(zfsvfs); |
454 |
ZFS_VERIFY_ZP(zp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
455 |
os = zfsvfs->z_os; |
789 | 456 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
457 |
if (zp->z_pflags & ZFS_AV_QUARANTINED) { |
5929
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
458 |
ZFS_EXIT(zfsvfs); |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
459 |
return (EACCES); |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
460 |
} |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
461 |
|
789 | 462 |
/* |
463 |
* Validate file offset |
|
464 |
*/ |
|
465 |
if (uio->uio_loffset < (offset_t)0) { |
|
466 |
ZFS_EXIT(zfsvfs); |
|
467 |
return (EINVAL); |
|
468 |
} |
|
469 |
||
470 |
/* |
|
471 |
* Fasttrack empty reads |
|
472 |
*/ |
|
473 |
if (uio->uio_resid == 0) { |
|
474 |
ZFS_EXIT(zfsvfs); |
|
475 |
return (0); |
|
476 |
} |
|
477 |
||
478 |
/* |
|
1669 | 479 |
* Check for mandatory locks |
789 | 480 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
481 |
if (MANDMODE(zp->z_mode)) { |
789 | 482 |
if (error = chklock(vp, FREAD, |
483 |
uio->uio_loffset, uio->uio_resid, uio->uio_fmode, ct)) { |
|
484 |
ZFS_EXIT(zfsvfs); |
|
485 |
return (error); |
|
486 |
} |
|
487 |
} |
|
488 |
||
489 |
/* |
|
490 |
* If we're in FRSYNC mode, sync out this znode before reading it. |
|
491 |
*/ |
|
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
492 |
if (ioflag & FRSYNC || zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2638
4f583dfeae92
6413510 zfs: writing to ZFS filesystem slows down fsync() on other files in the same FS
perrin
parents:
2597
diff
changeset
|
493 |
zil_commit(zfsvfs->z_log, zp->z_last_itx, zp->z_id); |
789 | 494 |
|
495 |
/* |
|
1669 | 496 |
* Lock the range against changes. |
789 | 497 |
*/ |
1669 | 498 |
rl = zfs_range_lock(zp, uio->uio_loffset, uio->uio_resid, RL_READER); |
499 |
||
789 | 500 |
/* |
501 |
* If we are reading past end-of-file we can skip |
|
502 |
* to the end; but we might still need to set atime. |
|
503 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
504 |
if (uio->uio_loffset >= zp->z_size) { |
789 | 505 |
error = 0; |
506 |
goto out; |
|
507 |
} |
|
508 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
509 |
ASSERT(uio->uio_loffset < zp->z_size); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
510 |
n = MIN(uio->uio_resid, zp->z_size - uio->uio_loffset); |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
511 |
|
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
512 |
if ((uio->uio_extflg == UIO_XUIO) && |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
513 |
(((xuio_t *)uio)->xu_type == UIOTYPE_ZEROCOPY)) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
514 |
int nblk; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
515 |
int blksz = zp->z_blksz; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
516 |
uint64_t offset = uio->uio_loffset; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
517 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
518 |
xuio = (xuio_t *)uio; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
519 |
if ((ISP2(blksz))) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
520 |
nblk = (P2ROUNDUP(offset + n, blksz) - P2ALIGN(offset, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
521 |
blksz)) / blksz; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
522 |
} else { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
523 |
ASSERT(offset + n <= blksz); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
524 |
nblk = 1; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
525 |
} |
11576
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
526 |
(void) dmu_xuio_init(xuio, nblk); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
527 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
528 |
if (vn_has_cached_data(vp)) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
529 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
530 |
* For simplicity, we always allocate a full buffer |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
531 |
* even if we only expect to read a portion of a block. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
532 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
533 |
while (--nblk >= 0) { |
11576
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
534 |
(void) dmu_xuio_add(xuio, |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
535 |
dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
536 |
blksz), 0, blksz); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
537 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
538 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
539 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
540 |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
541 |
while (n > 0) { |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
542 |
nbytes = MIN(n, zfs_read_chunk_size - |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
543 |
P2PHASE(uio->uio_loffset, zfs_read_chunk_size)); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
544 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
545 |
if (vn_has_cached_data(vp)) |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
546 |
error = mappedread(vp, nbytes, uio); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
547 |
else |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
548 |
error = dmu_read_uio(os, zp->z_id, uio, nbytes); |
7294 | 549 |
if (error) { |
550 |
/* convert checksum errors into IO errors */ |
|
551 |
if (error == ECKSUM) |
|
552 |
error = EIO; |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
553 |
break; |
7294 | 554 |
} |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
555 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
556 |
n -= nbytes; |
789 | 557 |
} |
558 |
out: |
|
2237 | 559 |
zfs_range_unlock(rl); |
789 | 560 |
|
561 |
ZFS_ACCESSTIME_STAMP(zfsvfs, zp); |
|
562 |
ZFS_EXIT(zfsvfs); |
|
563 |
return (error); |
|
564 |
} |
|
565 |
||
566 |
/* |
|
567 |
* Write the bytes to a file. |
|
568 |
* |
|
569 |
* IN: vp - vnode of file to be written to. |
|
570 |
* uio - structure supplying write location, range info, |
|
571 |
* and data buffer. |
|
572 |
* ioflag - FAPPEND flag set if in append mode. |
|
573 |
* cr - credentials of caller. |
|
5331 | 574 |
* ct - caller context (NFS/CIFS fem monitor only) |
789 | 575 |
* |
576 |
* OUT: uio - updated offset and range. |
|
577 |
* |
|
578 |
* RETURN: 0 if success |
|
579 |
* error code if failure |
|
580 |
* |
|
581 |
* Timestamps: |
|
582 |
* vp - ctime|mtime updated if byte count > 0 |
|
583 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
584 |
|
789 | 585 |
/* ARGSUSED */ |
586 |
static int |
|
587 |
zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) |
|
588 |
{ |
|
589 |
znode_t *zp = VTOZ(vp); |
|
590 |
rlim64_t limit = uio->uio_llimit; |
|
591 |
ssize_t start_resid = uio->uio_resid; |
|
592 |
ssize_t tx_bytes; |
|
593 |
uint64_t end_size; |
|
594 |
dmu_tx_t *tx; |
|
595 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
596 |
zilog_t *zilog; |
789 | 597 |
offset_t woff; |
598 |
ssize_t n, nbytes; |
|
1669 | 599 |
rl_t *rl; |
789 | 600 |
int max_blksz = zfsvfs->z_max_blksz; |
1669 | 601 |
int error; |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
602 |
arc_buf_t *abuf; |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
603 |
iovec_t *aiov; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
604 |
xuio_t *xuio = NULL; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
605 |
int i_iov = 0; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
606 |
int iovcnt = uio->uio_iovcnt; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
607 |
iovec_t *iovp = uio->uio_iov; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
608 |
int write_eof; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
609 |
int count = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
610 |
sa_bulk_attr_t bulk[4]; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
611 |
uint64_t mtime[2], ctime[2]; |
789 | 612 |
|
613 |
/* |
|
614 |
* Fasttrack empty write |
|
615 |
*/ |
|
1669 | 616 |
n = start_resid; |
789 | 617 |
if (n == 0) |
618 |
return (0); |
|
619 |
||
1669 | 620 |
if (limit == RLIM64_INFINITY || limit > MAXOFFSET_T) |
621 |
limit = MAXOFFSET_T; |
|
622 |
||
5367 | 623 |
ZFS_ENTER(zfsvfs); |
624 |
ZFS_VERIFY_ZP(zp); |
|
6743
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
625 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
626 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
627 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
628 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
629 |
&zp->z_size, 8); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
630 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
631 |
&zp->z_pflags, 8); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
632 |
|
6743
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
633 |
/* |
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
634 |
* If immutable or not appending then return EPERM |
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
635 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
636 |
if ((zp->z_pflags & (ZFS_IMMUTABLE | ZFS_READONLY)) || |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
637 |
((zp->z_pflags & ZFS_APPENDONLY) && !(ioflag & FAPPEND) && |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
638 |
(uio->uio_loffset < zp->z_size))) { |
6743
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
639 |
ZFS_EXIT(zfsvfs); |
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
640 |
return (EPERM); |
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
641 |
} |
5176703cbaff
6703554 panic with ZFS and Greenplum: BAD TRAP: type=e (#pf Page fault)
marks
parents:
6492
diff
changeset
|
642 |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
643 |
zilog = zfsvfs->z_log; |
789 | 644 |
|
645 |
/* |
|
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
646 |
* Validate file offset |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
647 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
648 |
woff = ioflag & FAPPEND ? zp->z_size : uio->uio_loffset; |
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
649 |
if (woff < 0) { |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
650 |
ZFS_EXIT(zfsvfs); |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
651 |
return (EINVAL); |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
652 |
} |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
653 |
|
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
654 |
/* |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
655 |
* Check for mandatory locks before calling zfs_range_lock() |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
656 |
* in order to prevent a deadlock with locks set via fcntl(). |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
657 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
658 |
if (MANDMODE((mode_t)zp->z_mode) && |
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
659 |
(error = chklock(vp, FWRITE, woff, n, uio->uio_fmode, ct)) != 0) { |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
660 |
ZFS_EXIT(zfsvfs); |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
661 |
return (error); |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
662 |
} |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
663 |
|
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
664 |
/* |
2237 | 665 |
* Pre-fault the pages to ensure slow (eg NFS) pages |
1669 | 666 |
* don't hold up txg. |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
667 |
* Skip this if uio contains loaned arc_buf. |
789 | 668 |
*/ |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
669 |
if ((uio->uio_extflg == UIO_XUIO) && |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
670 |
(((xuio_t *)uio)->xu_type == UIOTYPE_ZEROCOPY)) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
671 |
xuio = (xuio_t *)uio; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
672 |
else |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
673 |
uio_prefaultpages(n, uio); |
789 | 674 |
|
675 |
/* |
|
676 |
* If in append mode, set the io offset pointer to eof. |
|
677 |
*/ |
|
1669 | 678 |
if (ioflag & FAPPEND) { |
679 |
/* |
|
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
680 |
* Obtain an appending range lock to guarantee file append |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
681 |
* semantics. We reset the write offset once we have the lock. |
1669 | 682 |
*/ |
683 |
rl = zfs_range_lock(zp, 0, n, RL_APPEND); |
|
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
684 |
woff = rl->r_off; |
1669 | 685 |
if (rl->r_len == UINT64_MAX) { |
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
686 |
/* |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
687 |
* We overlocked the file because this write will cause |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
688 |
* the file block size to increase. |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
689 |
* Note that zp_size cannot change with this lock held. |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
690 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
691 |
woff = zp->z_size; |
1669 | 692 |
} |
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
693 |
uio->uio_loffset = woff; |
789 | 694 |
} else { |
695 |
/* |
|
11083
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
696 |
* Note that if the file block size will change as a result of |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
697 |
* this write, then this range lock will lock the entire file |
f5064cfdf092
6876139 writev - gABI test case hangs with ZFS filesystem
William Gorrell <william.gorrell@sun.com>
parents:
10945
diff
changeset
|
698 |
* so that we can re-write the block safely. |
789 | 699 |
*/ |
1669 | 700 |
rl = zfs_range_lock(zp, woff, n, RL_WRITER); |
789 | 701 |
} |
702 |
||
703 |
if (woff >= limit) { |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
704 |
zfs_range_unlock(rl); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
705 |
ZFS_EXIT(zfsvfs); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
706 |
return (EFBIG); |
789 | 707 |
} |
708 |
||
709 |
if ((woff + n) > limit || woff > (limit - n)) |
|
710 |
n = limit - woff; |
|
711 |
||
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
712 |
/* Will this write extend the file length? */ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
713 |
write_eof = (woff + n > zp->z_size); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
714 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
715 |
end_size = MAX(zp->z_size, woff + n); |
789 | 716 |
|
1669 | 717 |
/* |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
718 |
* Write the file in reasonable size chunks. Each chunk is written |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
719 |
* in a separate transaction; this keeps the intent log records small |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
720 |
* and allows us to do more fine-grained space accounting. |
789 | 721 |
*/ |
722 |
while (n > 0) { |
|
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
723 |
abuf = NULL; |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
724 |
woff = uio->uio_loffset; |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
725 |
again: |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
726 |
if (zfs_owner_overquota(zfsvfs, zp, B_FALSE) || |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
727 |
zfs_owner_overquota(zfsvfs, zp, B_TRUE)) { |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
728 |
if (abuf != NULL) |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
729 |
dmu_return_arcbuf(abuf); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
730 |
error = EDQUOT; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
731 |
break; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
732 |
} |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
733 |
|
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
734 |
if (xuio && abuf == NULL) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
735 |
ASSERT(i_iov < iovcnt); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
736 |
aiov = &iovp[i_iov]; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
737 |
abuf = dmu_xuio_arcbuf(xuio, i_iov); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
738 |
dmu_xuio_clear(xuio, i_iov); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
739 |
DTRACE_PROBE3(zfs_cp_write, int, i_iov, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
740 |
iovec_t *, aiov, arc_buf_t *, abuf); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
741 |
ASSERT((aiov->iov_base == abuf->b_data) || |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
742 |
((char *)aiov->iov_base - (char *)abuf->b_data + |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
743 |
aiov->iov_len == arc_buf_size(abuf))); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
744 |
i_iov++; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
745 |
} else if (abuf == NULL && n >= max_blksz && |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
746 |
woff >= zp->z_size && |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
747 |
P2PHASE(woff, max_blksz) == 0 && |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
748 |
zp->z_blksz == max_blksz) { |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
749 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
750 |
* This write covers a full block. "Borrow" a buffer |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
751 |
* from the dmu so that we can fill it before we enter |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
752 |
* a transaction. This avoids the possibility of |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
753 |
* holding up the transaction if the data copy hangs |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
754 |
* up on a pagefault (e.g., from an NFS server mapping). |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
755 |
*/ |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
756 |
size_t cbytes; |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
757 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
758 |
abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
759 |
max_blksz); |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
760 |
ASSERT(abuf != NULL); |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
761 |
ASSERT(arc_buf_size(abuf) == max_blksz); |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
762 |
if (error = uiocopy(abuf->b_data, max_blksz, |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
763 |
UIO_WRITE, uio, &cbytes)) { |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
764 |
dmu_return_arcbuf(abuf); |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
765 |
break; |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
766 |
} |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
767 |
ASSERT(cbytes == max_blksz); |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
768 |
} |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
769 |
|
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
770 |
/* |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
771 |
* Start a transaction. |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
772 |
*/ |
789 | 773 |
tx = dmu_tx_create(zfsvfs->z_os); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
774 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); |
789 | 775 |
dmu_tx_hold_write(tx, zp->z_id, woff, MIN(n, max_blksz)); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
776 |
zfs_sa_upgrade_txholds(tx, zp); |
8227 | 777 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 778 |
if (error) { |
8227 | 779 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
780 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
781 |
dmu_tx_abort(tx); |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
782 |
goto again; |
789 | 783 |
} |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
784 |
dmu_tx_abort(tx); |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
785 |
if (abuf != NULL) |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
786 |
dmu_return_arcbuf(abuf); |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
787 |
break; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
788 |
} |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
789 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
790 |
/* |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
791 |
* If zfs_range_lock() over-locked we grow the blocksize |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
792 |
* and then reduce the lock range. This will only happen |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
793 |
* on the first iteration since zfs_range_reduce() will |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
794 |
* shrink down r_len to the appropriate size. |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
795 |
*/ |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
796 |
if (rl->r_len == UINT64_MAX) { |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
797 |
uint64_t new_blksz; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
798 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
799 |
if (zp->z_blksz > max_blksz) { |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
800 |
ASSERT(!ISP2(zp->z_blksz)); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
801 |
new_blksz = MIN(end_size, SPA_MAXBLOCKSIZE); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
802 |
} else { |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
803 |
new_blksz = MIN(end_size, max_blksz); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
804 |
} |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
805 |
zfs_grow_blocksize(zp, new_blksz, tx); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
806 |
zfs_range_reduce(rl, woff, n); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
807 |
} |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
808 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
809 |
/* |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
810 |
* XXX - should we really limit each write to z_max_blksz? |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
811 |
* Perhaps we should use SPA_MAXBLOCKSIZE chunks? |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
812 |
*/ |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
813 |
nbytes = MIN(n, max_blksz - P2PHASE(woff, max_blksz)); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
814 |
|
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
815 |
if (abuf == NULL) { |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
816 |
tx_bytes = uio->uio_resid; |
12123
bb40732a982e
6572591 meta dnode lookup causes bucket lock contention in dbuf hash
Tim Haley <Tim.Haley@Sun.COM>
parents:
12079
diff
changeset
|
817 |
error = dmu_write_uio_dbuf(sa_get_db(zp->z_sa_hdl), |
bb40732a982e
6572591 meta dnode lookup causes bucket lock contention in dbuf hash
Tim Haley <Tim.Haley@Sun.COM>
parents:
12079
diff
changeset
|
818 |
uio, nbytes, tx); |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
819 |
tx_bytes -= uio->uio_resid; |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
820 |
} else { |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
821 |
tx_bytes = nbytes; |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
822 |
ASSERT(xuio == NULL || tx_bytes == aiov->iov_len); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
823 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
824 |
* If this is not a full block write, but we are |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
825 |
* extending the file past EOF and this data starts |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
826 |
* block-aligned, use assign_arcbuf(). Otherwise, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
827 |
* write via dmu_write(). |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
828 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
829 |
if (tx_bytes < max_blksz && (!write_eof || |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
830 |
aiov->iov_base != abuf->b_data)) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
831 |
ASSERT(xuio); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
832 |
dmu_write(zfsvfs->z_os, zp->z_id, woff, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
833 |
aiov->iov_len, aiov->iov_base, tx); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
834 |
dmu_return_arcbuf(abuf); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
835 |
xuio_stat_wbuf_copied(); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
836 |
} else { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
837 |
ASSERT(xuio || tx_bytes == max_blksz); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
838 |
dmu_assign_arcbuf(sa_get_db(zp->z_sa_hdl), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
839 |
woff, abuf, tx); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
840 |
} |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
841 |
ASSERT(tx_bytes <= uio->uio_resid); |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
842 |
uioskip(uio, tx_bytes); |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
843 |
} |
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
844 |
if (tx_bytes && vn_has_cached_data(vp)) { |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
845 |
update_pages(vp, woff, |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
846 |
tx_bytes, zfsvfs->z_os, zp->z_id); |
9412
4aefd8704ce0
6717022 ZFS DMU needs zero-copy support
Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM>
parents:
9396
diff
changeset
|
847 |
} |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
848 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
849 |
/* |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
850 |
* If we made no progress, we're done. If we made even |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
851 |
* partial progress, update the znode and ZIL accordingly. |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
852 |
*/ |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
853 |
if (tx_bytes == 0) { |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
854 |
(void) sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
855 |
(void *)&zp->z_size, sizeof (uint64_t), tx); |
3897
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
856 |
dmu_tx_commit(tx); |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
857 |
ASSERT(error != 0); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
858 |
break; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
859 |
} |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
860 |
|
789 | 861 |
/* |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
862 |
* Clear Set-UID/Set-GID bits on successful write if not |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
863 |
* privileged and at least one of the excute bits is set. |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
864 |
* |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
865 |
* It would be nice to to this after all writes have |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
866 |
* been done, but that would still expose the ISUID/ISGID |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
867 |
* to another app after the partial write is committed. |
5331 | 868 |
* |
789 | 869 |
*/ |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
870 |
mutex_enter(&zp->z_acl_lock); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
871 |
if ((zp->z_mode & (S_IXUSR | (S_IXUSR >> 3) | |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
872 |
(S_IXUSR >> 6))) != 0 && |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
873 |
(zp->z_mode & (S_ISUID | S_ISGID)) != 0 && |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
874 |
secpolicy_vnode_setid_retain(cr, |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
875 |
(zp->z_mode & S_ISUID) != 0 && zp->z_uid == 0) != 0) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
876 |
uint64_t newmode; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
877 |
zp->z_mode &= ~(S_ISUID | S_ISGID); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
878 |
newmode = zp->z_mode; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
879 |
(void) sa_update(zp->z_sa_hdl, SA_ZPL_MODE(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
880 |
(void *)&newmode, sizeof (uint64_t), tx); |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
881 |
} |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
882 |
mutex_exit(&zp->z_acl_lock); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
883 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
884 |
zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
885 |
B_TRUE); |
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
886 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
887 |
/* |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
888 |
* Update the file size (zp_size) if it has changed; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
889 |
* account for possible concurrent updates. |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
890 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
891 |
while ((end_size = zp->z_size) < uio->uio_loffset) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
892 |
(void) atomic_cas_64(&zp->z_size, end_size, |
789 | 893 |
uio->uio_loffset); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
894 |
ASSERT(error == 0); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
895 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
896 |
error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
897 |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
898 |
zfs_log_write(zilog, tx, TX_WRITE, zp, woff, tx_bytes, ioflag); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
899 |
dmu_tx_commit(tx); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
900 |
|
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
901 |
if (error != 0) |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
902 |
break; |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
903 |
ASSERT(tx_bytes == nbytes); |
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
904 |
n -= nbytes; |
789 | 905 |
} |
906 |
||
2237 | 907 |
zfs_range_unlock(rl); |
789 | 908 |
|
909 |
/* |
|
910 |
* If we're in replay mode, or we made no progress, return error. |
|
911 |
* Otherwise, it's at least a partial write, so it's successful. |
|
912 |
*/ |
|
8227 | 913 |
if (zfsvfs->z_replay || uio->uio_resid == start_resid) { |
789 | 914 |
ZFS_EXIT(zfsvfs); |
915 |
return (error); |
|
916 |
} |
|
917 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
918 |
if (ioflag & (FSYNC | FDSYNC) || |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
919 |
zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2638
4f583dfeae92
6413510 zfs: writing to ZFS filesystem slows down fsync() on other files in the same FS
perrin
parents:
2597
diff
changeset
|
920 |
zil_commit(zilog, zp->z_last_itx, zp->z_id); |
789 | 921 |
|
922 |
ZFS_EXIT(zfsvfs); |
|
923 |
return (0); |
|
924 |
} |
|
925 |
||
2237 | 926 |
void |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
927 |
zfs_get_done(zgd_t *zgd, int error) |
2237 | 928 |
{ |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
929 |
znode_t *zp = zgd->zgd_private; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
930 |
objset_t *os = zp->z_zfsvfs->z_os; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
931 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
932 |
if (zgd->zgd_db) |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
933 |
dmu_buf_rele(zgd->zgd_db, zgd); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
934 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
935 |
zfs_range_unlock(zgd->zgd_rl); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
936 |
|
9321
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
937 |
/* |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
938 |
* Release the vnode asynchronously as we currently have the |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
939 |
* txg stopped from syncing. |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
940 |
*/ |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
941 |
VN_RELE_ASYNC(ZTOV(zp), dsl_pool_vnrele_taskq(dmu_objset_pool(os))); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
942 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
943 |
if (error == 0 && zgd->zgd_bp) |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
944 |
zil_add_block(zgd->zgd_zilog, zgd->zgd_bp); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
945 |
|
3063
b252896b372b
6341569 zio_alloc_blk() vdev distribution performs badly
perrin
parents:
2796
diff
changeset
|
946 |
kmem_free(zgd, sizeof (zgd_t)); |
2237 | 947 |
} |
948 |
||
10209
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
949 |
#ifdef DEBUG |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
950 |
static int zil_fault_io = 0; |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
951 |
#endif |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
952 |
|
789 | 953 |
/* |
954 |
* Get data to generate a TX_WRITE intent log record. |
|
955 |
*/ |
|
956 |
int |
|
2237 | 957 |
zfs_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) |
789 | 958 |
{ |
959 |
zfsvfs_t *zfsvfs = arg; |
|
960 |
objset_t *os = zfsvfs->z_os; |
|
961 |
znode_t *zp; |
|
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
962 |
uint64_t object = lr->lr_foid; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
963 |
uint64_t offset = lr->lr_offset; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
964 |
uint64_t size = lr->lr_length; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
965 |
blkptr_t *bp = &lr->lr_blkptr; |
2237 | 966 |
dmu_buf_t *db; |
3063
b252896b372b
6341569 zio_alloc_blk() vdev distribution performs badly
perrin
parents:
2796
diff
changeset
|
967 |
zgd_t *zgd; |
789 | 968 |
int error = 0; |
969 |
||
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
970 |
ASSERT(zio != NULL); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
971 |
ASSERT(size != 0); |
789 | 972 |
|
973 |
/* |
|
1669 | 974 |
* Nothing to do if the file has been removed |
789 | 975 |
*/ |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
976 |
if (zfs_zget(zfsvfs, object, &zp) != 0) |
789 | 977 |
return (ENOENT); |
3461 | 978 |
if (zp->z_unlinked) { |
9321
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
979 |
/* |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
980 |
* Release the vnode asynchronously as we currently have the |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
981 |
* txg stopped from syncing. |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
982 |
*/ |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
983 |
VN_RELE_ASYNC(ZTOV(zp), |
dca349c475c1
6591646 Hang while trying to enter a txg while holding a txg open
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9265
diff
changeset
|
984 |
dsl_pool_vnrele_taskq(dmu_objset_pool(os))); |
789 | 985 |
return (ENOENT); |
986 |
} |
|
987 |
||
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
988 |
zgd = (zgd_t *)kmem_zalloc(sizeof (zgd_t), KM_SLEEP); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
989 |
zgd->zgd_zilog = zfsvfs->z_log; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
990 |
zgd->zgd_private = zp; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
991 |
|
789 | 992 |
/* |
993 |
* Write records come in two flavors: immediate and indirect. |
|
994 |
* For small writes it's cheaper to store the data with the |
|
995 |
* log record (immediate); for large writes it's cheaper to |
|
996 |
* sync the data and get a pointer to it (indirect) so that |
|
997 |
* we don't have to write the data twice. |
|
998 |
*/ |
|
1669 | 999 |
if (buf != NULL) { /* immediate write */ |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1000 |
zgd->zgd_rl = zfs_range_lock(zp, offset, size, RL_READER); |
1669 | 1001 |
/* test for truncation needs to be done while range locked */ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1002 |
if (offset >= zp->z_size) { |
1669 | 1003 |
error = ENOENT; |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1004 |
} else { |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1005 |
error = dmu_read(os, object, offset, size, buf, |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1006 |
DMU_READ_NO_PREFETCH); |
1669 | 1007 |
} |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1008 |
ASSERT(error == 0 || error == ENOENT); |
1669 | 1009 |
} else { /* indirect write */ |
789 | 1010 |
/* |
1669 | 1011 |
* Have to lock the whole block to ensure when it's |
1012 |
* written out and it's checksum is being calculated |
|
1013 |
* that no one can change the data. We need to re-check |
|
1014 |
* blocksize after we get the lock in case it's changed! |
|
789 | 1015 |
*/ |
1669 | 1016 |
for (;;) { |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1017 |
uint64_t blkoff; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1018 |
size = zp->z_blksz; |
10945
b3afbf06f20d
6897933 zfs_get_data: assertion failed: db->db_offset == offset
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10922
diff
changeset
|
1019 |
blkoff = ISP2(size) ? P2PHASE(offset, size) : offset; |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1020 |
offset -= blkoff; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1021 |
zgd->zgd_rl = zfs_range_lock(zp, offset, size, |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1022 |
RL_READER); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1023 |
if (zp->z_blksz == size) |
1669 | 1024 |
break; |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1025 |
offset += blkoff; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1026 |
zfs_range_unlock(zgd->zgd_rl); |
1669 | 1027 |
} |
1028 |
/* test for truncation needs to be done while range locked */ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1029 |
if (lr->lr_offset >= zp->z_size) |
1669 | 1030 |
error = ENOENT; |
10209
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
1031 |
#ifdef DEBUG |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
1032 |
if (zil_fault_io) { |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
1033 |
error = EIO; |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
1034 |
zil_fault_io = 0; |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
1035 |
} |
91f47f0e7728
6830541 zfs_get_data trips on a verify
Mark J Musante <Mark.Musante@Sun.COM>
parents:
10143
diff
changeset
|
1036 |
#endif |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1037 |
if (error == 0) |
12285
d736d62dcca2
6944833 Avoid prefetching dbufs in dmu_sync() path
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
12218
diff
changeset
|
1038 |
error = dmu_buf_hold(os, object, offset, zgd, &db, |
d736d62dcca2
6944833 Avoid prefetching dbufs in dmu_sync() path
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
12218
diff
changeset
|
1039 |
DMU_READ_NO_PREFETCH); |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1040 |
|
10800
469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
10793
diff
changeset
|
1041 |
if (error == 0) { |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1042 |
zgd->zgd_db = db; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1043 |
zgd->zgd_bp = bp; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1044 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1045 |
ASSERT(db->db_offset == offset); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1046 |
ASSERT(db->db_size == size); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1047 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1048 |
error = dmu_sync(zio, lr->lr_common.lrc_txg, |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1049 |
zfs_get_done, zgd); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1050 |
ASSERT(error || lr->lr_length <= zp->z_blksz); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1051 |
|
10800
469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
10793
diff
changeset
|
1052 |
/* |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1053 |
* On success, we need to wait for the write I/O |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1054 |
* initiated by dmu_sync() to complete before we can |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1055 |
* release this dbuf. We will finish everything up |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1056 |
* in the zfs_get_done() callback. |
10800
469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
10793
diff
changeset
|
1057 |
*/ |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1058 |
if (error == 0) |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1059 |
return (0); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1060 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1061 |
if (error == EALREADY) { |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1062 |
lr->lr_common.lrc_txtype = TX_WRITE2; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1063 |
error = 0; |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1064 |
} |
10800
469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
10793
diff
changeset
|
1065 |
} |
789 | 1066 |
} |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1067 |
|
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1068 |
zfs_get_done(zgd, error); |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10896
diff
changeset
|
1069 |
|
789 | 1070 |
return (error); |
1071 |
} |
|
1072 |
||
1073 |
/*ARGSUSED*/ |
|
1074 |
static int |
|
5331 | 1075 |
zfs_access(vnode_t *vp, int mode, int flag, cred_t *cr, |
1076 |
caller_context_t *ct) |
|
789 | 1077 |
{ |
1078 |
znode_t *zp = VTOZ(vp); |
|
1079 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
1080 |
int error; |
|
1081 |
||
5367 | 1082 |
ZFS_ENTER(zfsvfs); |
1083 |
ZFS_VERIFY_ZP(zp); |
|
5331 | 1084 |
|
1085 |
if (flag & V_ACE_MASK) |
|
1086 |
error = zfs_zaccess(zp, mode, flag, B_FALSE, cr); |
|
1087 |
else |
|
1088 |
error = zfs_zaccess_rwx(zp, mode, flag, cr); |
|
1089 |
||
789 | 1090 |
ZFS_EXIT(zfsvfs); |
1091 |
return (error); |
|
1092 |
} |
|
1093 |
||
1094 |
/* |
|
9981
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1095 |
* If vnode is for a device return a specfs vnode instead. |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1096 |
*/ |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1097 |
static int |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1098 |
specvp_check(vnode_t **vpp, cred_t *cr) |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1099 |
{ |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1100 |
int error = 0; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1101 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1102 |
if (IS_DEVVP(*vpp)) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1103 |
struct vnode *svp; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1104 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1105 |
svp = specvp(*vpp, (*vpp)->v_rdev, (*vpp)->v_type, cr); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1106 |
VN_RELE(*vpp); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1107 |
if (svp == NULL) |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1108 |
error = ENOSYS; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1109 |
*vpp = svp; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1110 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1111 |
return (error); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1112 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1113 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1114 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1115 |
/* |
789 | 1116 |
* Lookup an entry in a directory, or an extended attribute directory. |
1117 |
* If it exists, return a held vnode reference for it. |
|
1118 |
* |
|
1119 |
* IN: dvp - vnode of directory to search. |
|
1120 |
* nm - name of entry to lookup. |
|
1121 |
* pnp - full pathname to lookup [UNUSED]. |
|
1122 |
* flags - LOOKUP_XATTR set if looking for an attribute. |
|
1123 |
* rdir - root directory vnode [UNUSED]. |
|
1124 |
* cr - credentials of caller. |
|
5331 | 1125 |
* ct - caller context |
1126 |
* direntflags - directory lookup flags |
|
1127 |
* realpnp - returned pathname. |
|
789 | 1128 |
* |
1129 |
* OUT: vpp - vnode of located entry, NULL if not found. |
|
1130 |
* |
|
1131 |
* RETURN: 0 if success |
|
1132 |
* error code if failure |
|
1133 |
* |
|
1134 |
* Timestamps: |
|
1135 |
* NA |
|
1136 |
*/ |
|
1137 |
/* ARGSUSED */ |
|
1138 |
static int |
|
1139 |
zfs_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, struct pathname *pnp, |
|
5331 | 1140 |
int flags, vnode_t *rdir, cred_t *cr, caller_context_t *ct, |
1141 |
int *direntflags, pathname_t *realpnp) |
|
789 | 1142 |
{ |
1143 |
znode_t *zdp = VTOZ(dvp); |
|
1144 |
zfsvfs_t *zfsvfs = zdp->z_zfsvfs; |
|
9981
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1145 |
int error = 0; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1146 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1147 |
/* fast path */ |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1148 |
if (!(flags & (LOOKUP_XATTR | FIGNORECASE))) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1149 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1150 |
if (dvp->v_type != VDIR) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1151 |
return (ENOTDIR); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1152 |
} else if (zdp->z_sa_hdl == NULL) { |
9981
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1153 |
return (EIO); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1154 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1155 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1156 |
if (nm[0] == 0 || (nm[0] == '.' && nm[1] == '\0')) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1157 |
error = zfs_fastaccesschk_execute(zdp, cr); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1158 |
if (!error) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1159 |
*vpp = dvp; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1160 |
VN_HOLD(*vpp); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1161 |
return (0); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1162 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1163 |
return (error); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1164 |
} else { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1165 |
vnode_t *tvp = dnlc_lookup(dvp, nm); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1166 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1167 |
if (tvp) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1168 |
error = zfs_fastaccesschk_execute(zdp, cr); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1169 |
if (error) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1170 |
VN_RELE(tvp); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1171 |
return (error); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1172 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1173 |
if (tvp == DNLC_NO_VNODE) { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1174 |
VN_RELE(tvp); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1175 |
return (ENOENT); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1176 |
} else { |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1177 |
*vpp = tvp; |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1178 |
return (specvp_check(vpp, cr)); |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1179 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1180 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1181 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1182 |
} |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1183 |
|
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1184 |
DTRACE_PROBE2(zfs__fastpath__lookup__miss, vnode_t *, dvp, char *, nm); |
789 | 1185 |
|
5367 | 1186 |
ZFS_ENTER(zfsvfs); |
1187 |
ZFS_VERIFY_ZP(zdp); |
|
789 | 1188 |
|
1189 |
*vpp = NULL; |
|
1190 |
||
1191 |
if (flags & LOOKUP_XATTR) { |
|
1192 |
/* |
|
3234 | 1193 |
* If the xattr property is off, refuse the lookup request. |
1194 |
*/ |
|
1195 |
if (!(zfsvfs->z_vfs->vfs_flag & VFS_XATTR)) { |
|
1196 |
ZFS_EXIT(zfsvfs); |
|
1197 |
return (EINVAL); |
|
1198 |
} |
|
1199 |
||
1200 |
/* |
|
789 | 1201 |
* We don't allow recursive attributes.. |
1202 |
* Maybe someday we will. |
|
1203 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1204 |
if (zdp->z_pflags & ZFS_XATTR) { |
789 | 1205 |
ZFS_EXIT(zfsvfs); |
1206 |
return (EINVAL); |
|
1207 |
} |
|
1208 |
||
3280
e93ccc27c51d
6492686 NFSv4 client got EACCES over ZFS when trying to OPENATTR without createdir
ck153898
parents:
3271
diff
changeset
|
1209 |
if (error = zfs_get_xattrdir(VTOZ(dvp), vpp, cr, flags)) { |
789 | 1210 |
ZFS_EXIT(zfsvfs); |
1211 |
return (error); |
|
1212 |
} |
|
1213 |
||
1214 |
/* |
|
1215 |
* Do we have permission to get into attribute directory? |
|
1216 |
*/ |
|
1217 |
||
5331 | 1218 |
if (error = zfs_zaccess(VTOZ(*vpp), ACE_EXECUTE, 0, |
1219 |
B_FALSE, cr)) { |
|
789 | 1220 |
VN_RELE(*vpp); |
5331 | 1221 |
*vpp = NULL; |
789 | 1222 |
} |
1223 |
||
1224 |
ZFS_EXIT(zfsvfs); |
|
1225 |
return (error); |
|
1226 |
} |
|
1227 |
||
1512 | 1228 |
if (dvp->v_type != VDIR) { |
1229 |
ZFS_EXIT(zfsvfs); |
|
1460
299d0ee75ed4
6371285 panic when nfs lookup operation attempted on plain file
marks
parents:
1417
diff
changeset
|
1230 |
return (ENOTDIR); |
1512 | 1231 |
} |
1460
299d0ee75ed4
6371285 panic when nfs lookup operation attempted on plain file
marks
parents:
1417
diff
changeset
|
1232 |
|
789 | 1233 |
/* |
1234 |
* Check accessibility of directory. |
|
1235 |
*/ |
|
1236 |
||
5331 | 1237 |
if (error = zfs_zaccess(zdp, ACE_EXECUTE, 0, B_FALSE, cr)) { |
789 | 1238 |
ZFS_EXIT(zfsvfs); |
1239 |
return (error); |
|
1240 |
} |
|
1241 |
||
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
1242 |
if (zfsvfs->z_utf8 && u8_validate(nm, strlen(nm), |
5331 | 1243 |
NULL, U8_VALIDATE_ENTIRE, &error) < 0) { |
1244 |
ZFS_EXIT(zfsvfs); |
|
1245 |
return (EILSEQ); |
|
1246 |
} |
|
1247 |
||
1248 |
error = zfs_dirlook(zdp, nm, vpp, flags, direntflags, realpnp); |
|
9981
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1249 |
if (error == 0) |
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1250 |
error = specvp_check(vpp, cr); |
789 | 1251 |
|
1252 |
ZFS_EXIT(zfsvfs); |
|
1253 |
return (error); |
|
1254 |
} |
|
1255 |
||
1256 |
/* |
|
1257 |
* Attempt to create a new entry in a directory. If the entry |
|
1258 |
* already exists, truncate the file if permissible, else return |
|
1259 |
* an error. Return the vp of the created or trunc'd file. |
|
1260 |
* |
|
1261 |
* IN: dvp - vnode of directory to put new file entry in. |
|
1262 |
* name - name of new file entry. |
|
1263 |
* vap - attributes of new file. |
|
1264 |
* excl - flag indicating exclusive or non-exclusive mode. |
|
1265 |
* mode - mode to open file with. |
|
1266 |
* cr - credentials of caller. |
|
1267 |
* flag - large file flag [UNUSED]. |
|
5331 | 1268 |
* ct - caller context |
1269 |
* vsecp - ACL to be set |
|
789 | 1270 |
* |
1271 |
* OUT: vpp - vnode of created or trunc'd entry. |
|
1272 |
* |
|
1273 |
* RETURN: 0 if success |
|
1274 |
* error code if failure |
|
1275 |
* |
|
1276 |
* Timestamps: |
|
1277 |
* dvp - ctime|mtime updated if new entry created |
|
1278 |
* vp - ctime|mtime always, atime if new |
|
1279 |
*/ |
|
5331 | 1280 |
|
789 | 1281 |
/* ARGSUSED */ |
1282 |
static int |
|
1283 |
zfs_create(vnode_t *dvp, char *name, vattr_t *vap, vcexcl_t excl, |
|
5331 | 1284 |
int mode, vnode_t **vpp, cred_t *cr, int flag, caller_context_t *ct, |
1285 |
vsecattr_t *vsecp) |
|
789 | 1286 |
{ |
1287 |
znode_t *zp, *dzp = VTOZ(dvp); |
|
1288 |
zfsvfs_t *zfsvfs = dzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1289 |
zilog_t *zilog; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1290 |
objset_t *os; |
789 | 1291 |
zfs_dirlock_t *dl; |
1292 |
dmu_tx_t *tx; |
|
1293 |
int error; |
|
7847
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1294 |
ksid_t *ksid; |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1295 |
uid_t uid; |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1296 |
gid_t gid = crgetgid(cr); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1297 |
zfs_acl_ids_t acl_ids; |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1298 |
boolean_t fuid_dirtied; |
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1299 |
boolean_t have_acl = B_FALSE; |
5331 | 1300 |
|
1301 |
/* |
|
1302 |
* If we have an ephemeral id, ACL, or XVATTR then |
|
1303 |
* make sure file system is at proper version |
|
1304 |
*/ |
|
1305 |
||
7847
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1306 |
ksid = crgetsid(cr, KSID_OWNER); |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1307 |
if (ksid) |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1308 |
uid = ksid_getid(ksid); |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1309 |
else |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1310 |
uid = crgetuid(cr); |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1311 |
|
5331 | 1312 |
if (zfsvfs->z_use_fuids == B_FALSE && |
1313 |
(vsecp || (vap->va_mask & AT_XVATTR) || |
|
7847
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1314 |
IS_EPHEMERAL(uid) || IS_EPHEMERAL(gid))) |
5331 | 1315 |
return (EINVAL); |
789 | 1316 |
|
5367 | 1317 |
ZFS_ENTER(zfsvfs); |
1318 |
ZFS_VERIFY_ZP(dzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1319 |
os = zfsvfs->z_os; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1320 |
zilog = zfsvfs->z_log; |
789 | 1321 |
|
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
1322 |
if (zfsvfs->z_utf8 && u8_validate(name, strlen(name), |
5331 | 1323 |
NULL, U8_VALIDATE_ENTIRE, &error) < 0) { |
1324 |
ZFS_EXIT(zfsvfs); |
|
1325 |
return (EILSEQ); |
|
1326 |
} |
|
1327 |
||
1328 |
if (vap->va_mask & AT_XVATTR) { |
|
1329 |
if ((error = secpolicy_xvattr((xvattr_t *)vap, |
|
1330 |
crgetuid(cr), cr, vap->va_type)) != 0) { |
|
1331 |
ZFS_EXIT(zfsvfs); |
|
1332 |
return (error); |
|
1333 |
} |
|
1334 |
} |
|
789 | 1335 |
top: |
1336 |
*vpp = NULL; |
|
1337 |
||
1338 |
if ((vap->va_mode & VSVTX) && secpolicy_vnode_stky_modify(cr)) |
|
1339 |
vap->va_mode &= ~VSVTX; |
|
1340 |
||
1341 |
if (*name == '\0') { |
|
1342 |
/* |
|
1343 |
* Null component name refers to the directory itself. |
|
1344 |
*/ |
|
1345 |
VN_HOLD(dvp); |
|
1346 |
zp = dzp; |
|
1347 |
dl = NULL; |
|
1348 |
error = 0; |
|
1349 |
} else { |
|
1350 |
/* possible VN_HOLD(zp) */ |
|
5331 | 1351 |
int zflg = 0; |
1352 |
||
1353 |
if (flag & FIGNORECASE) |
|
1354 |
zflg |= ZCILOOK; |
|
1355 |
||
1356 |
error = zfs_dirent_lock(&dl, dzp, name, &zp, zflg, |
|
1357 |
NULL, NULL); |
|
1358 |
if (error) { |
|
789 | 1359 |
if (strcmp(name, "..") == 0) |
1360 |
error = EISDIR; |
|
1361 |
ZFS_EXIT(zfsvfs); |
|
1362 |
return (error); |
|
1363 |
} |
|
1364 |
} |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1365 |
|
789 | 1366 |
if (zp == NULL) { |
5331 | 1367 |
uint64_t txtype; |
1368 |
||
789 | 1369 |
/* |
1370 |
* Create a new file object and update the directory |
|
1371 |
* to reference it. |
|
1372 |
*/ |
|
5331 | 1373 |
if (error = zfs_zaccess(dzp, ACE_ADD_FILE, 0, B_FALSE, cr)) { |
789 | 1374 |
goto out; |
1375 |
} |
|
1376 |
||
1377 |
/* |
|
1378 |
* We only support the creation of regular files in |
|
1379 |
* extended attribute directories. |
|
1380 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1381 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1382 |
if ((dzp->z_pflags & ZFS_XATTR) && |
789 | 1383 |
(vap->va_type != VREG)) { |
1384 |
error = EINVAL; |
|
1385 |
goto out; |
|
1386 |
} |
|
1387 |
||
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1388 |
if (!have_acl && (error = zfs_acl_ids_create(dzp, 0, vap, |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1389 |
cr, vsecp, &acl_ids)) != 0) |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1390 |
goto out; |
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1391 |
have_acl = B_TRUE; |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1392 |
|
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1393 |
if (zfs_acl_ids_overquota(zfsvfs, &acl_ids)) { |
10143
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
1394 |
zfs_acl_ids_free(&acl_ids); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1395 |
error = EDQUOT; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1396 |
goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1397 |
} |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1398 |
|
789 | 1399 |
tx = dmu_tx_create(os); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1400 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1401 |
dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1402 |
ZFS_SA_BASE_ATTR_SIZE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1403 |
|
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1404 |
fuid_dirtied = zfsvfs->z_fuid_dirty; |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1405 |
if (fuid_dirtied) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1406 |
zfs_fuid_txhold(zfsvfs, tx); |
1544 | 1407 |
dmu_tx_hold_zap(tx, dzp->z_id, TRUE, name); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1408 |
dmu_tx_hold_sa(tx, dzp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1409 |
if (!zfsvfs->z_use_sa && |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1410 |
acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { |
789 | 1411 |
dmu_tx_hold_write(tx, DMU_NEW_OBJECT, |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1412 |
0, acl_ids.z_aclp->z_acl_bytes); |
5331 | 1413 |
} |
8227 | 1414 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 1415 |
if (error) { |
1416 |
zfs_dirent_unlock(dl); |
|
8227 | 1417 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1418 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1419 |
dmu_tx_abort(tx); |
789 | 1420 |
goto top; |
1421 |
} |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1422 |
zfs_acl_ids_free(&acl_ids); |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1423 |
dmu_tx_abort(tx); |
789 | 1424 |
ZFS_EXIT(zfsvfs); |
1425 |
return (error); |
|
1426 |
} |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1427 |
zfs_mknode(dzp, vap, tx, cr, 0, &zp, &acl_ids); |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1428 |
|
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1429 |
if (fuid_dirtied) |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1430 |
zfs_fuid_sync(zfsvfs, tx); |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1431 |
|
789 | 1432 |
(void) zfs_link_create(dl, zp, tx, ZNEW); |
5331 | 1433 |
txtype = zfs_log_create_txtype(Z_FILE, vsecp, vap); |
1434 |
if (flag & FIGNORECASE) |
|
1435 |
txtype |= TX_CI; |
|
1436 |
zfs_log_create(zilog, tx, txtype, dzp, zp, name, |
|
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1437 |
vsecp, acl_ids.z_fuidp, vap); |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1438 |
zfs_acl_ids_free(&acl_ids); |
789 | 1439 |
dmu_tx_commit(tx); |
1440 |
} else { |
|
5331 | 1441 |
int aflags = (flag & FAPPEND) ? V_APPEND : 0; |
1442 |
||
789 | 1443 |
/* |
1444 |
* A directory entry already exists for this name. |
|
1445 |
*/ |
|
1446 |
/* |
|
1447 |
* Can't truncate an existing file if in exclusive mode. |
|
1448 |
*/ |
|
1449 |
if (excl == EXCL) { |
|
1450 |
error = EEXIST; |
|
1451 |
goto out; |
|
1452 |
} |
|
1453 |
/* |
|
1454 |
* Can't open a directory for writing. |
|
1455 |
*/ |
|
1456 |
if ((ZTOV(zp)->v_type == VDIR) && (mode & S_IWRITE)) { |
|
1457 |
error = EISDIR; |
|
1458 |
goto out; |
|
1459 |
} |
|
1460 |
/* |
|
1461 |
* Verify requested access to file. |
|
1462 |
*/ |
|
5331 | 1463 |
if (mode && (error = zfs_zaccess_rwx(zp, mode, aflags, cr))) { |
789 | 1464 |
goto out; |
1465 |
} |
|
1466 |
||
1467 |
mutex_enter(&dzp->z_lock); |
|
1468 |
dzp->z_seq++; |
|
1469 |
mutex_exit(&dzp->z_lock); |
|
1470 |
||
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
1471 |
/* |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
1472 |
* Truncate regular files if requested. |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
1473 |
*/ |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
1474 |
if ((ZTOV(zp)->v_type == VREG) && |
789 | 1475 |
(vap->va_mask & AT_SIZE) && (vap->va_size == 0)) { |
6992 | 1476 |
/* we can't hold any locks when calling zfs_freesp() */ |
1477 |
zfs_dirent_unlock(dl); |
|
1478 |
dl = NULL; |
|
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
1479 |
error = zfs_freesp(zp, 0, 0, mode, TRUE); |
4863 | 1480 |
if (error == 0) { |
5331 | 1481 |
vnevent_create(ZTOV(zp), ct); |
4863 | 1482 |
} |
789 | 1483 |
} |
1484 |
} |
|
1485 |
out: |
|
1486 |
||
1487 |
if (dl) |
|
1488 |
zfs_dirent_unlock(dl); |
|
1489 |
||
1490 |
if (error) { |
|
1491 |
if (zp) |
|
1492 |
VN_RELE(ZTOV(zp)); |
|
1493 |
} else { |
|
1494 |
*vpp = ZTOV(zp); |
|
9981
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
1495 |
error = specvp_check(vpp, cr); |
789 | 1496 |
} |
1497 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1498 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1499 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1500 |
|
789 | 1501 |
ZFS_EXIT(zfsvfs); |
1502 |
return (error); |
|
1503 |
} |
|
1504 |
||
1505 |
/* |
|
1506 |
* Remove an entry from a directory. |
|
1507 |
* |
|
1508 |
* IN: dvp - vnode of directory to remove entry from. |
|
1509 |
* name - name of entry to remove. |
|
1510 |
* cr - credentials of caller. |
|
5331 | 1511 |
* ct - caller context |
1512 |
* flags - case flags |
|
789 | 1513 |
* |
1514 |
* RETURN: 0 if success |
|
1515 |
* error code if failure |
|
1516 |
* |
|
1517 |
* Timestamps: |
|
1518 |
* dvp - ctime|mtime |
|
1519 |
* vp - ctime (if nlink > 0) |
|
1520 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1521 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1522 |
uint64_t null_xattr = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1523 |
|
5331 | 1524 |
/*ARGSUSED*/ |
789 | 1525 |
static int |
5331 | 1526 |
zfs_remove(vnode_t *dvp, char *name, cred_t *cr, caller_context_t *ct, |
1527 |
int flags) |
|
789 | 1528 |
{ |
1529 |
znode_t *zp, *dzp = VTOZ(dvp); |
|
1530 |
znode_t *xzp = NULL; |
|
1531 |
vnode_t *vp; |
|
1532 |
zfsvfs_t *zfsvfs = dzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1533 |
zilog_t *zilog; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1534 |
uint64_t acl_obj, xattr_obj = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1535 |
uint64_t xattr_obj_unlinked = 0; |
789 | 1536 |
zfs_dirlock_t *dl; |
1537 |
dmu_tx_t *tx; |
|
3461 | 1538 |
boolean_t may_delete_now, delete_now = FALSE; |
6992 | 1539 |
boolean_t unlinked, toobig = FALSE; |
5331 | 1540 |
uint64_t txtype; |
1541 |
pathname_t *realnmp = NULL; |
|
1542 |
pathname_t realnm; |
|
789 | 1543 |
int error; |
5331 | 1544 |
int zflg = ZEXISTS; |
789 | 1545 |
|
5367 | 1546 |
ZFS_ENTER(zfsvfs); |
1547 |
ZFS_VERIFY_ZP(dzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1548 |
zilog = zfsvfs->z_log; |
789 | 1549 |
|
5331 | 1550 |
if (flags & FIGNORECASE) { |
1551 |
zflg |= ZCILOOK; |
|
1552 |
pn_alloc(&realnm); |
|
1553 |
realnmp = &realnm; |
|
1554 |
} |
|
1555 |
||
789 | 1556 |
top: |
1557 |
/* |
|
1558 |
* Attempt to lock directory; fail if entry doesn't exist. |
|
1559 |
*/ |
|
5331 | 1560 |
if (error = zfs_dirent_lock(&dl, dzp, name, &zp, zflg, |
1561 |
NULL, realnmp)) { |
|
1562 |
if (realnmp) |
|
1563 |
pn_free(realnmp); |
|
789 | 1564 |
ZFS_EXIT(zfsvfs); |
1565 |
return (error); |
|
1566 |
} |
|
1567 |
||
1568 |
vp = ZTOV(zp); |
|
1569 |
||
1570 |
if (error = zfs_zaccess_delete(dzp, zp, cr)) { |
|
1571 |
goto out; |
|
1572 |
} |
|
1573 |
||
1574 |
/* |
|
1575 |
* Need to use rmdir for removing directories. |
|
1576 |
*/ |
|
1577 |
if (vp->v_type == VDIR) { |
|
1578 |
error = EPERM; |
|
1579 |
goto out; |
|
1580 |
} |
|
1581 |
||
5331 | 1582 |
vnevent_remove(vp, dvp, name, ct); |
1583 |
||
1584 |
if (realnmp) |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6180
diff
changeset
|
1585 |
dnlc_remove(dvp, realnmp->pn_buf); |
5331 | 1586 |
else |
1587 |
dnlc_remove(dvp, name); |
|
1484
d330e98f8ed7
6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS
ek110237
parents:
1472
diff
changeset
|
1588 |
|
789 | 1589 |
mutex_enter(&vp->v_lock); |
1590 |
may_delete_now = vp->v_count == 1 && !vn_has_cached_data(vp); |
|
1591 |
mutex_exit(&vp->v_lock); |
|
1592 |
||
1593 |
/* |
|
3461 | 1594 |
* We may delete the znode now, or we may put it in the unlinked set; |
789 | 1595 |
* it depends on whether we're the last link, and on whether there are |
1596 |
* other holds on the vnode. So we dmu_tx_hold() the right things to |
|
1597 |
* allow for either case. |
|
1598 |
*/ |
|
1599 |
tx = dmu_tx_create(zfsvfs->z_os); |
|
1544 | 1600 |
dmu_tx_hold_zap(tx, dzp->z_id, FALSE, name); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1601 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1602 |
zfs_sa_upgrade_txholds(tx, zp); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1603 |
zfs_sa_upgrade_txholds(tx, dzp); |
6992 | 1604 |
if (may_delete_now) { |
1605 |
toobig = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1606 |
zp->z_size > zp->z_blksz * DMU_MAX_DELETEBLKCNT; |
6992 | 1607 |
/* if the file is too big, only hold_free a token amount */ |
1608 |
dmu_tx_hold_free(tx, zp->z_id, 0, |
|
1609 |
(toobig ? DMU_MAX_ACCESS : DMU_OBJECT_END)); |
|
1610 |
} |
|
789 | 1611 |
|
1612 |
/* are there any extended attributes? */ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1613 |
error = sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1614 |
&xattr_obj, sizeof (xattr_obj)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1615 |
if (xattr_obj) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1616 |
error = zfs_zget(zfsvfs, xattr_obj, &xzp); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1617 |
ASSERT3U(error, ==, 0); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1618 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1619 |
dmu_tx_hold_sa(tx, xzp->z_sa_hdl, B_FALSE); |
789 | 1620 |
} |
1621 |
||
1622 |
/* are there any additional acls */ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1623 |
if ((acl_obj = ZFS_EXTERNAL_ACL(zp)) != 0 && may_delete_now) |
789 | 1624 |
dmu_tx_hold_free(tx, acl_obj, 0, DMU_OBJECT_END); |
1625 |
||
1626 |
/* charge as an update -- would be nice not to charge at all */ |
|
3461 | 1627 |
dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); |
789 | 1628 |
|
8227 | 1629 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 1630 |
if (error) { |
1631 |
zfs_dirent_unlock(dl); |
|
1632 |
VN_RELE(vp); |
|
8227 | 1633 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1634 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1635 |
dmu_tx_abort(tx); |
789 | 1636 |
goto top; |
1637 |
} |
|
5331 | 1638 |
if (realnmp) |
1639 |
pn_free(realnmp); |
|
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1640 |
dmu_tx_abort(tx); |
789 | 1641 |
ZFS_EXIT(zfsvfs); |
1642 |
return (error); |
|
1643 |
} |
|
1644 |
||
1645 |
/* |
|
1646 |
* Remove the directory entry. |
|
1647 |
*/ |
|
5331 | 1648 |
error = zfs_link_destroy(dl, zp, tx, zflg, &unlinked); |
789 | 1649 |
|
1650 |
if (error) { |
|
1651 |
dmu_tx_commit(tx); |
|
1652 |
goto out; |
|
1653 |
} |
|
1654 |
||
3461 | 1655 |
if (unlinked) { |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1656 |
|
789 | 1657 |
mutex_enter(&vp->v_lock); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1658 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1659 |
(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1660 |
&xattr_obj_unlinked, sizeof (xattr_obj_unlinked)); |
6992 | 1661 |
delete_now = may_delete_now && !toobig && |
789 | 1662 |
vp->v_count == 1 && !vn_has_cached_data(vp) && |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1663 |
xattr_obj == xattr_obj_unlinked && ZFS_EXTERNAL_ACL(zp) == |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1664 |
acl_obj; |
789 | 1665 |
mutex_exit(&vp->v_lock); |
1666 |
} |
|
1667 |
||
1668 |
if (delete_now) { |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1669 |
if (xattr_obj_unlinked) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1670 |
ASSERT3U(xzp->z_links, ==, 2); |
789 | 1671 |
mutex_enter(&xzp->z_lock); |
3461 | 1672 |
xzp->z_unlinked = 1; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1673 |
xzp->z_links = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1674 |
error = sa_update(xzp->z_sa_hdl, SA_ZPL_LINKS(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1675 |
&xzp->z_links, sizeof (xzp->z_links), tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1676 |
ASSERT3U(error, ==, 0); |
789 | 1677 |
mutex_exit(&xzp->z_lock); |
3461 | 1678 |
zfs_unlinked_add(xzp, tx); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1679 |
if (zp->z_is_sa) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1680 |
error = sa_remove(zp->z_sa_hdl, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1681 |
SA_ZPL_XATTR(zfsvfs), tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1682 |
else |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1683 |
error = sa_update(zp->z_sa_hdl, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1684 |
SA_ZPL_XATTR(zfsvfs), &null_xattr, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1685 |
sizeof (uint64_t), tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1686 |
ASSERT3U(error, ==, 0); |
789 | 1687 |
} |
1688 |
mutex_enter(&zp->z_lock); |
|
1689 |
mutex_enter(&vp->v_lock); |
|
1690 |
vp->v_count--; |
|
1691 |
ASSERT3U(vp->v_count, ==, 0); |
|
1692 |
mutex_exit(&vp->v_lock); |
|
1693 |
mutex_exit(&zp->z_lock); |
|
1694 |
zfs_znode_delete(zp, tx); |
|
3461 | 1695 |
} else if (unlinked) { |
1696 |
zfs_unlinked_add(zp, tx); |
|
789 | 1697 |
} |
1698 |
||
5331 | 1699 |
txtype = TX_REMOVE; |
1700 |
if (flags & FIGNORECASE) |
|
1701 |
txtype |= TX_CI; |
|
1702 |
zfs_log_remove(zilog, tx, txtype, dzp, name); |
|
789 | 1703 |
|
1704 |
dmu_tx_commit(tx); |
|
1705 |
out: |
|
5331 | 1706 |
if (realnmp) |
1707 |
pn_free(realnmp); |
|
1708 |
||
789 | 1709 |
zfs_dirent_unlock(dl); |
1710 |
||
12178
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12164
diff
changeset
|
1711 |
if (!delete_now) |
789 | 1712 |
VN_RELE(vp); |
12178
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12164
diff
changeset
|
1713 |
if (xzp) |
789 | 1714 |
VN_RELE(ZTOV(xzp)); |
1715 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1716 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1717 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1718 |
|
789 | 1719 |
ZFS_EXIT(zfsvfs); |
1720 |
return (error); |
|
1721 |
} |
|
1722 |
||
1723 |
/* |
|
1724 |
* Create a new directory and insert it into dvp using the name |
|
1725 |
* provided. Return a pointer to the inserted directory. |
|
1726 |
* |
|
1727 |
* IN: dvp - vnode of directory to add subdir to. |
|
1728 |
* dirname - name of new directory. |
|
1729 |
* vap - attributes of new directory. |
|
1730 |
* cr - credentials of caller. |
|
5331 | 1731 |
* ct - caller context |
1732 |
* vsecp - ACL to be set |
|
789 | 1733 |
* |
1734 |
* OUT: vpp - vnode of created directory. |
|
1735 |
* |
|
1736 |
* RETURN: 0 if success |
|
1737 |
* error code if failure |
|
1738 |
* |
|
1739 |
* Timestamps: |
|
1740 |
* dvp - ctime|mtime updated |
|
1741 |
* vp - ctime|mtime|atime updated |
|
1742 |
*/ |
|
5331 | 1743 |
/*ARGSUSED*/ |
789 | 1744 |
static int |
5331 | 1745 |
zfs_mkdir(vnode_t *dvp, char *dirname, vattr_t *vap, vnode_t **vpp, cred_t *cr, |
1746 |
caller_context_t *ct, int flags, vsecattr_t *vsecp) |
|
789 | 1747 |
{ |
1748 |
znode_t *zp, *dzp = VTOZ(dvp); |
|
1749 |
zfsvfs_t *zfsvfs = dzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1750 |
zilog_t *zilog; |
789 | 1751 |
zfs_dirlock_t *dl; |
5331 | 1752 |
uint64_t txtype; |
789 | 1753 |
dmu_tx_t *tx; |
1754 |
int error; |
|
5331 | 1755 |
int zf = ZNEW; |
7847
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1756 |
ksid_t *ksid; |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1757 |
uid_t uid; |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1758 |
gid_t gid = crgetgid(cr); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1759 |
zfs_acl_ids_t acl_ids; |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1760 |
boolean_t fuid_dirtied; |
789 | 1761 |
|
1762 |
ASSERT(vap->va_type == VDIR); |
|
1763 |
||
5331 | 1764 |
/* |
1765 |
* If we have an ephemeral id, ACL, or XVATTR then |
|
1766 |
* make sure file system is at proper version |
|
1767 |
*/ |
|
1768 |
||
7847
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1769 |
ksid = crgetsid(cr, KSID_OWNER); |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1770 |
if (ksid) |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1771 |
uid = ksid_getid(ksid); |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1772 |
else |
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1773 |
uid = crgetuid(cr); |
5331 | 1774 |
if (zfsvfs->z_use_fuids == B_FALSE && |
7847
3b5331e410c6
6754013 ZFS should always use KSID_OWNER when it's set
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7844
diff
changeset
|
1775 |
(vsecp || (vap->va_mask & AT_XVATTR) || |
7876
c8456365db46
6760970 zfs_mkdir falsely returns EINVAL
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
7847
diff
changeset
|
1776 |
IS_EPHEMERAL(uid) || IS_EPHEMERAL(gid))) |
5331 | 1777 |
return (EINVAL); |
1778 |
||
5367 | 1779 |
ZFS_ENTER(zfsvfs); |
1780 |
ZFS_VERIFY_ZP(dzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1781 |
zilog = zfsvfs->z_log; |
789 | 1782 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1783 |
if (dzp->z_pflags & ZFS_XATTR) { |
789 | 1784 |
ZFS_EXIT(zfsvfs); |
1785 |
return (EINVAL); |
|
1786 |
} |
|
5331 | 1787 |
|
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
1788 |
if (zfsvfs->z_utf8 && u8_validate(dirname, |
5331 | 1789 |
strlen(dirname), NULL, U8_VALIDATE_ENTIRE, &error) < 0) { |
1790 |
ZFS_EXIT(zfsvfs); |
|
1791 |
return (EILSEQ); |
|
1792 |
} |
|
1793 |
if (flags & FIGNORECASE) |
|
1794 |
zf |= ZCILOOK; |
|
1795 |
||
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1796 |
if (vap->va_mask & AT_XVATTR) { |
5331 | 1797 |
if ((error = secpolicy_xvattr((xvattr_t *)vap, |
1798 |
crgetuid(cr), cr, vap->va_type)) != 0) { |
|
1799 |
ZFS_EXIT(zfsvfs); |
|
1800 |
return (error); |
|
1801 |
} |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1802 |
} |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1803 |
|
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1804 |
if ((error = zfs_acl_ids_create(dzp, 0, vap, cr, |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1805 |
vsecp, &acl_ids)) != 0) { |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1806 |
ZFS_EXIT(zfsvfs); |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1807 |
return (error); |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1808 |
} |
789 | 1809 |
/* |
1810 |
* First make sure the new directory doesn't exist. |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1811 |
* |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1812 |
* Existence is checked first to make sure we don't return |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1813 |
* EACCES instead of EEXIST which can cause some applications |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1814 |
* to fail. |
789 | 1815 |
*/ |
5331 | 1816 |
top: |
1817 |
*vpp = NULL; |
|
1818 |
||
1819 |
if (error = zfs_dirent_lock(&dl, dzp, dirname, &zp, zf, |
|
1820 |
NULL, NULL)) { |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1821 |
zfs_acl_ids_free(&acl_ids); |
789 | 1822 |
ZFS_EXIT(zfsvfs); |
1823 |
return (error); |
|
1824 |
} |
|
1825 |
||
5331 | 1826 |
if (error = zfs_zaccess(dzp, ACE_ADD_SUBDIRECTORY, 0, B_FALSE, cr)) { |
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1827 |
zfs_acl_ids_free(&acl_ids); |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
1828 |
zfs_dirent_unlock(dl); |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
1829 |
ZFS_EXIT(zfsvfs); |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
1830 |
return (error); |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
1831 |
} |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
1832 |
|
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1833 |
if (zfs_acl_ids_overquota(zfsvfs, &acl_ids)) { |
10143
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
1834 |
zfs_acl_ids_free(&acl_ids); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1835 |
zfs_dirent_unlock(dl); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1836 |
ZFS_EXIT(zfsvfs); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1837 |
return (EDQUOT); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1838 |
} |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1839 |
|
789 | 1840 |
/* |
1841 |
* Add a new entry to the directory. |
|
1842 |
*/ |
|
1843 |
tx = dmu_tx_create(zfsvfs->z_os); |
|
1544 | 1844 |
dmu_tx_hold_zap(tx, dzp->z_id, TRUE, dirname); |
1845 |
dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); |
|
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1846 |
fuid_dirtied = zfsvfs->z_fuid_dirty; |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1847 |
if (fuid_dirtied) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
1848 |
zfs_fuid_txhold(zfsvfs, tx); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1849 |
if (!zfsvfs->z_use_sa && acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1850 |
dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1851 |
acl_ids.z_aclp->z_acl_bytes); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1852 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1853 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1854 |
dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1855 |
ZFS_SA_BASE_ATTR_SIZE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1856 |
|
8227 | 1857 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 1858 |
if (error) { |
1859 |
zfs_dirent_unlock(dl); |
|
8227 | 1860 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1861 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1862 |
dmu_tx_abort(tx); |
789 | 1863 |
goto top; |
1864 |
} |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
1865 |
zfs_acl_ids_free(&acl_ids); |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1866 |
dmu_tx_abort(tx); |
789 | 1867 |
ZFS_EXIT(zfsvfs); |
1868 |
return (error); |
|
1869 |
} |
|
1870 |
||
1871 |
/* |
|
1872 |
* Create new node. |
|
1873 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1874 |
zfs_mknode(dzp, vap, tx, cr, 0, &zp, &acl_ids); |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1875 |
|
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1876 |
if (fuid_dirtied) |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1877 |
zfs_fuid_sync(zfsvfs, tx); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1878 |
|
789 | 1879 |
/* |
1880 |
* Now put new name in parent dir. |
|
1881 |
*/ |
|
1882 |
(void) zfs_link_create(dl, zp, tx, ZNEW); |
|
1883 |
||
1884 |
*vpp = ZTOV(zp); |
|
1885 |
||
5331 | 1886 |
txtype = zfs_log_create_txtype(Z_DIR, vsecp, vap); |
1887 |
if (flags & FIGNORECASE) |
|
1888 |
txtype |= TX_CI; |
|
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1889 |
zfs_log_create(zilog, tx, txtype, dzp, zp, dirname, vsecp, |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1890 |
acl_ids.z_fuidp, vap); |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1891 |
|
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
1892 |
zfs_acl_ids_free(&acl_ids); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1893 |
|
789 | 1894 |
dmu_tx_commit(tx); |
1895 |
||
1896 |
zfs_dirent_unlock(dl); |
|
1897 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1898 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1899 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
1900 |
|
789 | 1901 |
ZFS_EXIT(zfsvfs); |
1902 |
return (0); |
|
1903 |
} |
|
1904 |
||
1905 |
/* |
|
1906 |
* Remove a directory subdir entry. If the current working |
|
1907 |
* directory is the same as the subdir to be removed, the |
|
1908 |
* remove will fail. |
|
1909 |
* |
|
1910 |
* IN: dvp - vnode of directory to remove from. |
|
1911 |
* name - name of directory to be removed. |
|
1912 |
* cwd - vnode of current working directory. |
|
1913 |
* cr - credentials of caller. |
|
5331 | 1914 |
* ct - caller context |
1915 |
* flags - case flags |
|
789 | 1916 |
* |
1917 |
* RETURN: 0 if success |
|
1918 |
* error code if failure |
|
1919 |
* |
|
1920 |
* Timestamps: |
|
1921 |
* dvp - ctime|mtime updated |
|
1922 |
*/ |
|
5331 | 1923 |
/*ARGSUSED*/ |
789 | 1924 |
static int |
5331 | 1925 |
zfs_rmdir(vnode_t *dvp, char *name, vnode_t *cwd, cred_t *cr, |
1926 |
caller_context_t *ct, int flags) |
|
789 | 1927 |
{ |
1928 |
znode_t *dzp = VTOZ(dvp); |
|
1929 |
znode_t *zp; |
|
1930 |
vnode_t *vp; |
|
1931 |
zfsvfs_t *zfsvfs = dzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1932 |
zilog_t *zilog; |
789 | 1933 |
zfs_dirlock_t *dl; |
1934 |
dmu_tx_t *tx; |
|
1935 |
int error; |
|
5331 | 1936 |
int zflg = ZEXISTS; |
789 | 1937 |
|
5367 | 1938 |
ZFS_ENTER(zfsvfs); |
1939 |
ZFS_VERIFY_ZP(dzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
1940 |
zilog = zfsvfs->z_log; |
789 | 1941 |
|
5331 | 1942 |
if (flags & FIGNORECASE) |
1943 |
zflg |= ZCILOOK; |
|
789 | 1944 |
top: |
1945 |
zp = NULL; |
|
1946 |
||
1947 |
/* |
|
1948 |
* Attempt to lock directory; fail if entry doesn't exist. |
|
1949 |
*/ |
|
5331 | 1950 |
if (error = zfs_dirent_lock(&dl, dzp, name, &zp, zflg, |
1951 |
NULL, NULL)) { |
|
789 | 1952 |
ZFS_EXIT(zfsvfs); |
1953 |
return (error); |
|
1954 |
} |
|
1955 |
||
1956 |
vp = ZTOV(zp); |
|
1957 |
||
1958 |
if (error = zfs_zaccess_delete(dzp, zp, cr)) { |
|
1959 |
goto out; |
|
1960 |
} |
|
1961 |
||
1962 |
if (vp->v_type != VDIR) { |
|
1963 |
error = ENOTDIR; |
|
1964 |
goto out; |
|
1965 |
} |
|
1966 |
||
1967 |
if (vp == cwd) { |
|
1968 |
error = EINVAL; |
|
1969 |
goto out; |
|
1970 |
} |
|
1971 |
||
5331 | 1972 |
vnevent_rmdir(vp, dvp, name, ct); |
789 | 1973 |
|
1974 |
/* |
|
3897
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1975 |
* Grab a lock on the directory to make sure that noone is |
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1976 |
* trying to add (or lookup) entries while we are removing it. |
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1977 |
*/ |
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1978 |
rw_enter(&zp->z_name_lock, RW_WRITER); |
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1979 |
|
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1980 |
/* |
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1981 |
* Grab a lock on the parent pointer to make sure we play well |
789 | 1982 |
* with the treewalk and directory rename code. |
1983 |
*/ |
|
1984 |
rw_enter(&zp->z_parent_lock, RW_WRITER); |
|
1985 |
||
1986 |
tx = dmu_tx_create(zfsvfs->z_os); |
|
1544 | 1987 |
dmu_tx_hold_zap(tx, dzp->z_id, FALSE, name); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1988 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); |
3461 | 1989 |
dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1990 |
zfs_sa_upgrade_txholds(tx, zp); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
1991 |
zfs_sa_upgrade_txholds(tx, dzp); |
8227 | 1992 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 1993 |
if (error) { |
1994 |
rw_exit(&zp->z_parent_lock); |
|
3897
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
1995 |
rw_exit(&zp->z_name_lock); |
789 | 1996 |
zfs_dirent_unlock(dl); |
1997 |
VN_RELE(vp); |
|
8227 | 1998 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
1999 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
2000 |
dmu_tx_abort(tx); |
789 | 2001 |
goto top; |
2002 |
} |
|
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
2003 |
dmu_tx_abort(tx); |
789 | 2004 |
ZFS_EXIT(zfsvfs); |
2005 |
return (error); |
|
2006 |
} |
|
2007 |
||
5331 | 2008 |
error = zfs_link_destroy(dl, zp, tx, zflg, NULL); |
2009 |
||
2010 |
if (error == 0) { |
|
2011 |
uint64_t txtype = TX_RMDIR; |
|
2012 |
if (flags & FIGNORECASE) |
|
2013 |
txtype |= TX_CI; |
|
2014 |
zfs_log_remove(zilog, tx, txtype, dzp, name); |
|
2015 |
} |
|
789 | 2016 |
|
2017 |
dmu_tx_commit(tx); |
|
2018 |
||
2019 |
rw_exit(&zp->z_parent_lock); |
|
3897
278bade789ba
6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539
maybee
parents:
3638
diff
changeset
|
2020 |
rw_exit(&zp->z_name_lock); |
789 | 2021 |
out: |
2022 |
zfs_dirent_unlock(dl); |
|
2023 |
||
2024 |
VN_RELE(vp); |
|
2025 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2026 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2027 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2028 |
|
789 | 2029 |
ZFS_EXIT(zfsvfs); |
2030 |
return (error); |
|
2031 |
} |
|
2032 |
||
2033 |
/* |
|
2034 |
* Read as many directory entries as will fit into the provided |
|
2035 |
* buffer from the given directory cursor position (specified in |
|
2036 |
* the uio structure. |
|
2037 |
* |
|
2038 |
* IN: vp - vnode of directory to read. |
|
2039 |
* uio - structure supplying read location, range info, |
|
2040 |
* and return buffer. |
|
2041 |
* cr - credentials of caller. |
|
5331 | 2042 |
* ct - caller context |
2043 |
* flags - case flags |
|
789 | 2044 |
* |
2045 |
* OUT: uio - updated offset and range, buffer filled. |
|
2046 |
* eofp - set to true if end-of-file detected. |
|
2047 |
* |
|
2048 |
* RETURN: 0 if success |
|
2049 |
* error code if failure |
|
2050 |
* |
|
2051 |
* Timestamps: |
|
2052 |
* vp - atime updated |
|
2053 |
* |
|
2054 |
* Note that the low 4 bits of the cookie returned by zap is always zero. |
|
2055 |
* This allows us to use the low range for "special" directory entries: |
|
2056 |
* We use 0 for '.', and 1 for '..'. If this is the root of the filesystem, |
|
2057 |
* we use the offset 2 for the '.zfs' directory. |
|
2058 |
*/ |
|
2059 |
/* ARGSUSED */ |
|
2060 |
static int |
|
5331 | 2061 |
zfs_readdir(vnode_t *vp, uio_t *uio, cred_t *cr, int *eofp, |
2062 |
caller_context_t *ct, int flags) |
|
789 | 2063 |
{ |
2064 |
znode_t *zp = VTOZ(vp); |
|
2065 |
iovec_t *iovp; |
|
5331 | 2066 |
edirent_t *eodp; |
789 | 2067 |
dirent64_t *odp; |
2068 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2069 |
objset_t *os; |
789 | 2070 |
caddr_t outbuf; |
2071 |
size_t bufsize; |
|
2072 |
zap_cursor_t zc; |
|
2073 |
zap_attribute_t zap; |
|
2074 |
uint_t bytes_wanted; |
|
2075 |
uint64_t offset; /* must be unsigned; checks for < 1 */ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2076 |
uint64_t parent; |
789 | 2077 |
int local_eof; |
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2078 |
int outcount; |
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2079 |
int error; |
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2080 |
uint8_t prefetch; |
5663
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2081 |
boolean_t check_sysattrs; |
789 | 2082 |
|
5367 | 2083 |
ZFS_ENTER(zfsvfs); |
2084 |
ZFS_VERIFY_ZP(zp); |
|
789 | 2085 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2086 |
if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_PARENT(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2087 |
&parent, sizeof (parent))) != 0) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2088 |
ZFS_EXIT(zfsvfs); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2089 |
return (error); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2090 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2091 |
|
789 | 2092 |
/* |
2093 |
* If we are not given an eof variable, |
|
2094 |
* use a local one. |
|
2095 |
*/ |
|
2096 |
if (eofp == NULL) |
|
2097 |
eofp = &local_eof; |
|
2098 |
||
2099 |
/* |
|
2100 |
* Check for valid iov_len. |
|
2101 |
*/ |
|
2102 |
if (uio->uio_iov->iov_len <= 0) { |
|
2103 |
ZFS_EXIT(zfsvfs); |
|
2104 |
return (EINVAL); |
|
2105 |
} |
|
2106 |
||
2107 |
/* |
|
2108 |
* Quit if directory has been removed (posix) |
|
2109 |
*/ |
|
3461 | 2110 |
if ((*eofp = zp->z_unlinked) != 0) { |
789 | 2111 |
ZFS_EXIT(zfsvfs); |
2112 |
return (0); |
|
2113 |
} |
|
2114 |
||
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2115 |
error = 0; |
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2116 |
os = zfsvfs->z_os; |
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2117 |
offset = uio->uio_loffset; |
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2118 |
prefetch = zp->z_zn_prefetch; |
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2119 |
|
789 | 2120 |
/* |
2121 |
* Initialize the iterator cursor. |
|
2122 |
*/ |
|
2123 |
if (offset <= 3) { |
|
2124 |
/* |
|
2125 |
* Start iteration from the beginning of the directory. |
|
2126 |
*/ |
|
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2127 |
zap_cursor_init(&zc, os, zp->z_id); |
789 | 2128 |
} else { |
2129 |
/* |
|
2130 |
* The offset is a serialized cursor. |
|
2131 |
*/ |
|
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2132 |
zap_cursor_init_serialized(&zc, os, zp->z_id, offset); |
789 | 2133 |
} |
2134 |
||
2135 |
/* |
|
2136 |
* Get space to change directory entries into fs independent format. |
|
2137 |
*/ |
|
2138 |
iovp = uio->uio_iov; |
|
2139 |
bytes_wanted = iovp->iov_len; |
|
2140 |
if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) { |
|
2141 |
bufsize = bytes_wanted; |
|
2142 |
outbuf = kmem_alloc(bufsize, KM_SLEEP); |
|
2143 |
odp = (struct dirent64 *)outbuf; |
|
2144 |
} else { |
|
2145 |
bufsize = bytes_wanted; |
|
2146 |
odp = (struct dirent64 *)iovp->iov_base; |
|
2147 |
} |
|
5331 | 2148 |
eodp = (struct edirent *)odp; |
789 | 2149 |
|
2150 |
/* |
|
7757
bf4a45ecb669
PSARC/2008/588 VFSFT_SYSATTR_VIEWS
Janice Chang <Janice.Chang@Sun.COM>
parents:
7315
diff
changeset
|
2151 |
* If this VFS supports the system attribute view interface; and |
bf4a45ecb669
PSARC/2008/588 VFSFT_SYSATTR_VIEWS
Janice Chang <Janice.Chang@Sun.COM>
parents:
7315
diff
changeset
|
2152 |
* we're looking at an extended attribute directory; and we care |
bf4a45ecb669
PSARC/2008/588 VFSFT_SYSATTR_VIEWS
Janice Chang <Janice.Chang@Sun.COM>
parents:
7315
diff
changeset
|
2153 |
* about normalization conflicts on this vfs; then we must check |
bf4a45ecb669
PSARC/2008/588 VFSFT_SYSATTR_VIEWS
Janice Chang <Janice.Chang@Sun.COM>
parents:
7315
diff
changeset
|
2154 |
* for normalization conflicts with the sysattr name space. |
5663
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2155 |
*/ |
7757
bf4a45ecb669
PSARC/2008/588 VFSFT_SYSATTR_VIEWS
Janice Chang <Janice.Chang@Sun.COM>
parents:
7315
diff
changeset
|
2156 |
check_sysattrs = vfs_has_feature(vp->v_vfsp, VFSFT_SYSATTR_VIEWS) && |
5663
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2157 |
(vp->v_flag & V_XATTRDIR) && zfsvfs->z_norm && |
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2158 |
(flags & V_RDDIR_ENTFLAGS); |
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2159 |
|
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2160 |
/* |
789 | 2161 |
* Transform to file-system independent format |
2162 |
*/ |
|
2163 |
outcount = 0; |
|
2164 |
while (outcount < bytes_wanted) { |
|
3912 | 2165 |
ino64_t objnum; |
2166 |
ushort_t reclen; |
|
2167 |
off64_t *next; |
|
2168 |
||
789 | 2169 |
/* |
2170 |
* Special case `.', `..', and `.zfs'. |
|
2171 |
*/ |
|
2172 |
if (offset == 0) { |
|
2173 |
(void) strcpy(zap.za_name, "."); |
|
5331 | 2174 |
zap.za_normalization_conflict = 0; |
3912 | 2175 |
objnum = zp->z_id; |
789 | 2176 |
} else if (offset == 1) { |
2177 |
(void) strcpy(zap.za_name, ".."); |
|
5331 | 2178 |
zap.za_normalization_conflict = 0; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2179 |
objnum = parent; |
789 | 2180 |
} else if (offset == 2 && zfs_show_ctldir(zp)) { |
2181 |
(void) strcpy(zap.za_name, ZFS_CTLDIR_NAME); |
|
5331 | 2182 |
zap.za_normalization_conflict = 0; |
3912 | 2183 |
objnum = ZFSCTL_INO_ROOT; |
789 | 2184 |
} else { |
2185 |
/* |
|
2186 |
* Grab next entry. |
|
2187 |
*/ |
|
2188 |
if (error = zap_cursor_retrieve(&zc, &zap)) { |
|
2189 |
if ((*eofp = (error == ENOENT)) != 0) |
|
2190 |
break; |
|
2191 |
else |
|
2192 |
goto update; |
|
2193 |
} |
|
2194 |
||
2195 |
if (zap.za_integer_length != 8 || |
|
2196 |
zap.za_num_integers != 1) { |
|
2197 |
cmn_err(CE_WARN, "zap_readdir: bad directory " |
|
2198 |
"entry, obj = %lld, offset = %lld\n", |
|
2199 |
(u_longlong_t)zp->z_id, |
|
2200 |
(u_longlong_t)offset); |
|
2201 |
error = ENXIO; |
|
2202 |
goto update; |
|
2203 |
} |
|
3912 | 2204 |
|
2205 |
objnum = ZFS_DIRENT_OBJ(zap.za_first_integer); |
|
2206 |
/* |
|
2207 |
* MacOS X can extract the object type here such as: |
|
2208 |
* uint8_t type = ZFS_DIRENT_TYPE(zap.za_first_integer); |
|
2209 |
*/ |
|
5663
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2210 |
|
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2211 |
if (check_sysattrs && !zap.za_normalization_conflict) { |
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2212 |
zap.za_normalization_conflict = |
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2213 |
xattr_sysattr_casechk(zap.za_name); |
029cc4273b57
6627223 gfs needs to support extended dirent flags
ck153898
parents:
5642
diff
changeset
|
2214 |
} |
789 | 2215 |
} |
5331 | 2216 |
|
9749
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2217 |
if (flags & V_RDDIR_ACCFILTER) { |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2218 |
/* |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2219 |
* If we have no access at all, don't include |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2220 |
* this entry in the returned information |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2221 |
*/ |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2222 |
znode_t *ezp; |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2223 |
if (zfs_zget(zp->z_zfsvfs, objnum, &ezp) != 0) |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2224 |
goto skip_entry; |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2225 |
if (!zfs_has_access(ezp, cr)) { |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2226 |
VN_RELE(ZTOV(ezp)); |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2227 |
goto skip_entry; |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2228 |
} |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2229 |
VN_RELE(ZTOV(ezp)); |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2230 |
} |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2231 |
|
5331 | 2232 |
if (flags & V_RDDIR_ENTFLAGS) |
2233 |
reclen = EDIRENT_RECLEN(strlen(zap.za_name)); |
|
2234 |
else |
|
2235 |
reclen = DIRENT64_RECLEN(strlen(zap.za_name)); |
|
789 | 2236 |
|
2237 |
/* |
|
2238 |
* Will this entry fit in the buffer? |
|
2239 |
*/ |
|
3912 | 2240 |
if (outcount + reclen > bufsize) { |
789 | 2241 |
/* |
2242 |
* Did we manage to fit anything in the buffer? |
|
2243 |
*/ |
|
2244 |
if (!outcount) { |
|
2245 |
error = EINVAL; |
|
2246 |
goto update; |
|
2247 |
} |
|
2248 |
break; |
|
2249 |
} |
|
5331 | 2250 |
if (flags & V_RDDIR_ENTFLAGS) { |
2251 |
/* |
|
2252 |
* Add extended flag entry: |
|
2253 |
*/ |
|
2254 |
eodp->ed_ino = objnum; |
|
2255 |
eodp->ed_reclen = reclen; |
|
2256 |
/* NOTE: ed_off is the offset for the *next* entry */ |
|
2257 |
next = &(eodp->ed_off); |
|
2258 |
eodp->ed_eflags = zap.za_normalization_conflict ? |
|
2259 |
ED_CASE_CONFLICT : 0; |
|
2260 |
(void) strncpy(eodp->ed_name, zap.za_name, |
|
2261 |
EDIRENT_NAMELEN(reclen)); |
|
2262 |
eodp = (edirent_t *)((intptr_t)eodp + reclen); |
|
2263 |
} else { |
|
2264 |
/* |
|
2265 |
* Add normal entry: |
|
2266 |
*/ |
|
2267 |
odp->d_ino = objnum; |
|
2268 |
odp->d_reclen = reclen; |
|
2269 |
/* NOTE: d_off is the offset for the *next* entry */ |
|
2270 |
next = &(odp->d_off); |
|
2271 |
(void) strncpy(odp->d_name, zap.za_name, |
|
2272 |
DIRENT64_NAMELEN(reclen)); |
|
2273 |
odp = (dirent64_t *)((intptr_t)odp + reclen); |
|
2274 |
} |
|
3912 | 2275 |
outcount += reclen; |
789 | 2276 |
|
2277 |
ASSERT(outcount <= bufsize); |
|
2278 |
||
2279 |
/* Prefetch znode */ |
|
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2280 |
if (prefetch) |
3912 | 2281 |
dmu_prefetch(os, objnum, 0, 0); |
789 | 2282 |
|
9749
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
2283 |
skip_entry: |
789 | 2284 |
/* |
2285 |
* Move to the next entry, fill in the previous offset. |
|
2286 |
*/ |
|
2287 |
if (offset > 2 || (offset == 2 && !zfs_show_ctldir(zp))) { |
|
2288 |
zap_cursor_advance(&zc); |
|
2289 |
offset = zap_cursor_serialize(&zc); |
|
2290 |
} else { |
|
2291 |
offset += 1; |
|
2292 |
} |
|
2293 |
*next = offset; |
|
2294 |
} |
|
869
dc133b87dfb3
6297285 znode prefetching in zfs_readdir causes 5x performance degradation for 'ls'
perrin
parents:
789
diff
changeset
|
2295 |
zp->z_zn_prefetch = B_FALSE; /* a lookup will re-enable pre-fetching */ |
789 | 2296 |
|
2297 |
if (uio->uio_segflg == UIO_SYSSPACE && uio->uio_iovcnt == 1) { |
|
2298 |
iovp->iov_base += outcount; |
|
2299 |
iovp->iov_len -= outcount; |
|
2300 |
uio->uio_resid -= outcount; |
|
2301 |
} else if (error = uiomove(outbuf, (long)outcount, UIO_READ, uio)) { |
|
2302 |
/* |
|
2303 |
* Reset the pointer. |
|
2304 |
*/ |
|
2305 |
offset = uio->uio_loffset; |
|
2306 |
} |
|
2307 |
||
2308 |
update: |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
869
diff
changeset
|
2309 |
zap_cursor_fini(&zc); |
789 | 2310 |
if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) |
2311 |
kmem_free(outbuf, bufsize); |
|
2312 |
||
2313 |
if (error == ENOENT) |
|
2314 |
error = 0; |
|
2315 |
||
2316 |
ZFS_ACCESSTIME_STAMP(zfsvfs, zp); |
|
2317 |
||
2318 |
uio->uio_loffset = offset; |
|
2319 |
ZFS_EXIT(zfsvfs); |
|
2320 |
return (error); |
|
2321 |
} |
|
2322 |
||
4720
8edc0d2e6f3f
6535160 Lock contention on zl_lock from zil_commit
fr157268
parents:
4709
diff
changeset
|
2323 |
ulong_t zfs_fsync_sync_cnt = 4; |
8edc0d2e6f3f
6535160 Lock contention on zl_lock from zil_commit
fr157268
parents:
4709
diff
changeset
|
2324 |
|
789 | 2325 |
static int |
5331 | 2326 |
zfs_fsync(vnode_t *vp, int syncflag, cred_t *cr, caller_context_t *ct) |
789 | 2327 |
{ |
2328 |
znode_t *zp = VTOZ(vp); |
|
2329 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
2330 |
||
1773
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2331 |
/* |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2332 |
* Regardless of whether this is required for standards conformance, |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2333 |
* this is the logical behavior when fsync() is called on a file with |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2334 |
* dirty pages. We use B_ASYNC since the ZIL transactions are already |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2335 |
* going to be pushed out as part of the zil_commit(). |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2336 |
*/ |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2337 |
if (vn_has_cached_data(vp) && !(syncflag & FNODSYNC) && |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2338 |
(vp->v_type == VREG) && !(IS_SWAPVP(vp))) |
5331 | 2339 |
(void) VOP_PUTPAGE(vp, (offset_t)0, (size_t)0, B_ASYNC, cr, ct); |
1773
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
2340 |
|
4720
8edc0d2e6f3f
6535160 Lock contention on zl_lock from zil_commit
fr157268
parents:
4709
diff
changeset
|
2341 |
(void) tsd_set(zfs_fsyncer_key, (void *)zfs_fsync_sync_cnt); |
8edc0d2e6f3f
6535160 Lock contention on zl_lock from zil_commit
fr157268
parents:
4709
diff
changeset
|
2342 |
|
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2343 |
if (zfsvfs->z_os->os_sync != ZFS_SYNC_DISABLED) { |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2344 |
ZFS_ENTER(zfsvfs); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2345 |
ZFS_VERIFY_ZP(zp); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2346 |
zil_commit(zfsvfs->z_log, zp->z_last_itx, zp->z_id); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2347 |
ZFS_EXIT(zfsvfs); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
2348 |
} |
789 | 2349 |
return (0); |
2350 |
} |
|
2351 |
||
5331 | 2352 |
|
789 | 2353 |
/* |
2354 |
* Get the requested file attributes and place them in the provided |
|
2355 |
* vattr structure. |
|
2356 |
* |
|
2357 |
* IN: vp - vnode of file. |
|
2358 |
* vap - va_mask identifies requested attributes. |
|
5331 | 2359 |
* If AT_XVATTR set, then optional attrs are requested |
2360 |
* flags - ATTR_NOACLCHECK (CIFS server context) |
|
789 | 2361 |
* cr - credentials of caller. |
5331 | 2362 |
* ct - caller context |
789 | 2363 |
* |
2364 |
* OUT: vap - attribute values. |
|
2365 |
* |
|
2366 |
* RETURN: 0 (always succeeds) |
|
2367 |
*/ |
|
2368 |
/* ARGSUSED */ |
|
2369 |
static int |
|
5331 | 2370 |
zfs_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, |
2371 |
caller_context_t *ct) |
|
789 | 2372 |
{ |
2373 |
znode_t *zp = VTOZ(vp); |
|
2374 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
5331 | 2375 |
int error = 0; |
4543 | 2376 |
uint64_t links; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2377 |
uint64_t mtime[2], ctime[2]; |
5331 | 2378 |
xvattr_t *xvap = (xvattr_t *)vap; /* vap may be an xvattr_t * */ |
2379 |
xoptattr_t *xoap = NULL; |
|
2380 |
boolean_t skipaclchk = (flags & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2381 |
sa_bulk_attr_t bulk[2]; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2382 |
int count = 0; |
789 | 2383 |
|
5367 | 2384 |
ZFS_ENTER(zfsvfs); |
2385 |
ZFS_VERIFY_ZP(zp); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2386 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2387 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2388 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2389 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2390 |
if ((error = sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) != 0) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2391 |
ZFS_EXIT(zfsvfs); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2392 |
return (error); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2393 |
} |
789 | 2394 |
|
5331 | 2395 |
/* |
2396 |
* If ACL is trivial don't bother looking for ACE_READ_ATTRIBUTES. |
|
2397 |
* Also, if we are the owner don't bother, since owner should |
|
2398 |
* always be allowed to read basic attributes of file. |
|
2399 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2400 |
if (!(zp->z_pflags & ZFS_ACL_TRIVIAL) && (zp->z_uid != crgetuid(cr))) { |
5331 | 2401 |
if (error = zfs_zaccess(zp, ACE_READ_ATTRIBUTES, 0, |
2402 |
skipaclchk, cr)) { |
|
2403 |
ZFS_EXIT(zfsvfs); |
|
2404 |
return (error); |
|
2405 |
} |
|
2406 |
} |
|
2407 |
||
789 | 2408 |
/* |
2409 |
* Return all attributes. It's cheaper to provide the answer |
|
2410 |
* than to determine whether we were asked the question. |
|
2411 |
*/ |
|
2412 |
||
9774
0bb234ab2287
6788152 ZFS panic deadlock: cycle in blocking chain via zfs_zget
Ray Hassan <Ray.Hassan@Sun.COM>
parents:
9749
diff
changeset
|
2413 |
mutex_enter(&zp->z_lock); |
789 | 2414 |
vap->va_type = vp->v_type; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2415 |
vap->va_mode = zp->z_mode & MODEMASK; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2416 |
vap->va_uid = zp->z_uid; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2417 |
vap->va_gid = zp->z_gid; |
789 | 2418 |
vap->va_fsid = zp->z_zfsvfs->z_vfs->vfs_dev; |
2419 |
vap->va_nodeid = zp->z_id; |
|
4543 | 2420 |
if ((vp->v_flag & VROOT) && zfs_show_ctldir(zp)) |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2421 |
links = zp->z_links + 1; |
4543 | 2422 |
else |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2423 |
links = zp->z_links; |
4543 | 2424 |
vap->va_nlink = MIN(links, UINT32_MAX); /* nlink_t limit! */ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2425 |
vap->va_size = zp->z_size; |
1816
8c14b56c8515
6408482 64-bit system can't read some 32-bit dev_ts created on zfs
marks
parents:
1773
diff
changeset
|
2426 |
vap->va_rdev = vp->v_rdev; |
789 | 2427 |
vap->va_seq = zp->z_seq; |
2428 |
||
5331 | 2429 |
/* |
2430 |
* Add in any requested optional attributes and the create time. |
|
2431 |
* Also set the corresponding bits in the returned attribute bitmap. |
|
2432 |
*/ |
|
2433 |
if ((xoap = xva_getxoptattr(xvap)) != NULL && zfsvfs->z_use_fuids) { |
|
2434 |
if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) { |
|
2435 |
xoap->xoa_archive = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2436 |
((zp->z_pflags & ZFS_ARCHIVE) != 0); |
5331 | 2437 |
XVA_SET_RTN(xvap, XAT_ARCHIVE); |
2438 |
} |
|
2439 |
||
2440 |
if (XVA_ISSET_REQ(xvap, XAT_READONLY)) { |
|
2441 |
xoap->xoa_readonly = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2442 |
((zp->z_pflags & ZFS_READONLY) != 0); |
5331 | 2443 |
XVA_SET_RTN(xvap, XAT_READONLY); |
2444 |
} |
|
2445 |
||
2446 |
if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) { |
|
2447 |
xoap->xoa_system = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2448 |
((zp->z_pflags & ZFS_SYSTEM) != 0); |
5331 | 2449 |
XVA_SET_RTN(xvap, XAT_SYSTEM); |
2450 |
} |
|
2451 |
||
2452 |
if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) { |
|
2453 |
xoap->xoa_hidden = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2454 |
((zp->z_pflags & ZFS_HIDDEN) != 0); |
5331 | 2455 |
XVA_SET_RTN(xvap, XAT_HIDDEN); |
2456 |
} |
|
2457 |
||
2458 |
if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) { |
|
2459 |
xoap->xoa_nounlink = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2460 |
((zp->z_pflags & ZFS_NOUNLINK) != 0); |
5331 | 2461 |
XVA_SET_RTN(xvap, XAT_NOUNLINK); |
2462 |
} |
|
2463 |
||
2464 |
if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) { |
|
2465 |
xoap->xoa_immutable = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2466 |
((zp->z_pflags & ZFS_IMMUTABLE) != 0); |
5331 | 2467 |
XVA_SET_RTN(xvap, XAT_IMMUTABLE); |
2468 |
} |
|
2469 |
||
2470 |
if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) { |
|
2471 |
xoap->xoa_appendonly = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2472 |
((zp->z_pflags & ZFS_APPENDONLY) != 0); |
5331 | 2473 |
XVA_SET_RTN(xvap, XAT_APPENDONLY); |
2474 |
} |
|
2475 |
||
2476 |
if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) { |
|
2477 |
xoap->xoa_nodump = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2478 |
((zp->z_pflags & ZFS_NODUMP) != 0); |
5331 | 2479 |
XVA_SET_RTN(xvap, XAT_NODUMP); |
2480 |
} |
|
2481 |
||
2482 |
if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) { |
|
2483 |
xoap->xoa_opaque = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2484 |
((zp->z_pflags & ZFS_OPAQUE) != 0); |
5331 | 2485 |
XVA_SET_RTN(xvap, XAT_OPAQUE); |
2486 |
} |
|
2487 |
||
2488 |
if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) { |
|
2489 |
xoap->xoa_av_quarantined = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2490 |
((zp->z_pflags & ZFS_AV_QUARANTINED) != 0); |
5331 | 2491 |
XVA_SET_RTN(xvap, XAT_AV_QUARANTINED); |
2492 |
} |
|
2493 |
||
2494 |
if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) { |
|
2495 |
xoap->xoa_av_modified = |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2496 |
((zp->z_pflags & ZFS_AV_MODIFIED) != 0); |
5331 | 2497 |
XVA_SET_RTN(xvap, XAT_AV_MODIFIED); |
2498 |
} |
|
2499 |
||
2500 |
if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP) && |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2501 |
vp->v_type == VREG) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2502 |
zfs_sa_get_scanstamp(zp, xvap); |
5331 | 2503 |
} |
2504 |
||
2505 |
if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) { |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2506 |
uint64_t times[2]; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2507 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2508 |
(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2509 |
times, sizeof (times)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2510 |
ZFS_TIME_DECODE(&xoap->xoa_createtime, times); |
5331 | 2511 |
XVA_SET_RTN(xvap, XAT_CREATETIME); |
2512 |
} |
|
10793
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2513 |
|
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2514 |
if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) { |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2515 |
xoap->xoa_reparse = ((zp->z_pflags & ZFS_REPARSE) != 0); |
10793
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2516 |
XVA_SET_RTN(xvap, XAT_REPARSE); |
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2517 |
} |
5331 | 2518 |
} |
2519 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2520 |
ZFS_TIME_DECODE(&vap->va_atime, zp->z_atime); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2521 |
ZFS_TIME_DECODE(&vap->va_mtime, mtime); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2522 |
ZFS_TIME_DECODE(&vap->va_ctime, ctime); |
789 | 2523 |
|
2524 |
mutex_exit(&zp->z_lock); |
|
2525 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2526 |
sa_object_size(zp->z_sa_hdl, &vap->va_blksize, &vap->va_nblocks); |
789 | 2527 |
|
2528 |
if (zp->z_blksz == 0) { |
|
2529 |
/* |
|
2530 |
* Block size hasn't been set; suggest maximal I/O transfers. |
|
2531 |
*/ |
|
2532 |
vap->va_blksize = zfsvfs->z_max_blksz; |
|
2533 |
} |
|
2534 |
||
2535 |
ZFS_EXIT(zfsvfs); |
|
2536 |
return (0); |
|
2537 |
} |
|
2538 |
||
2539 |
/* |
|
2540 |
* Set the file attributes to the values contained in the |
|
2541 |
* vattr structure. |
|
2542 |
* |
|
2543 |
* IN: vp - vnode of file to be modified. |
|
2544 |
* vap - new attribute values. |
|
5331 | 2545 |
* If AT_XVATTR set, then optional attrs are being set |
789 | 2546 |
* flags - ATTR_UTIME set if non-default time values provided. |
5331 | 2547 |
* - ATTR_NOACLCHECK (CIFS context only). |
789 | 2548 |
* cr - credentials of caller. |
5331 | 2549 |
* ct - caller context |
789 | 2550 |
* |
2551 |
* RETURN: 0 if success |
|
2552 |
* error code if failure |
|
2553 |
* |
|
2554 |
* Timestamps: |
|
2555 |
* vp - ctime updated, mtime updated if size changed. |
|
2556 |
*/ |
|
2557 |
/* ARGSUSED */ |
|
2558 |
static int |
|
2559 |
zfs_setattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, |
|
2560 |
caller_context_t *ct) |
|
2561 |
{ |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
2562 |
znode_t *zp = VTOZ(vp); |
789 | 2563 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
2564 |
zilog_t *zilog; |
789 | 2565 |
dmu_tx_t *tx; |
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2566 |
vattr_t oldva; |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2567 |
xvattr_t tmpxvattr; |
789 | 2568 |
uint_t mask = vap->va_mask; |
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2569 |
uint_t saved_mask; |
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2570 |
int trim_mask = 0; |
789 | 2571 |
uint64_t new_mode; |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2572 |
uint64_t new_uid, new_gid; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2573 |
uint64_t xattr_obj = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2574 |
uint64_t mtime[2], ctime[2]; |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
2575 |
znode_t *attrzp; |
789 | 2576 |
int need_policy = FALSE; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2577 |
int err, err2; |
5331 | 2578 |
zfs_fuid_info_t *fuidp = NULL; |
2579 |
xvattr_t *xvap = (xvattr_t *)vap; /* vap may be an xvattr_t * */ |
|
2580 |
xoptattr_t *xoap; |
|
5824 | 2581 |
zfs_acl_t *aclp = NULL; |
5331 | 2582 |
boolean_t skipaclchk = (flags & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2583 |
boolean_t fuid_dirtied = B_FALSE; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2584 |
sa_bulk_attr_t bulk[7], xattr_bulk[7]; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2585 |
int count = 0, xattr_count = 0; |
789 | 2586 |
|
2587 |
if (mask == 0) |
|
2588 |
return (0); |
|
2589 |
||
2590 |
if (mask & AT_NOSET) |
|
2591 |
return (EINVAL); |
|
2592 |
||
5367 | 2593 |
ZFS_ENTER(zfsvfs); |
2594 |
ZFS_VERIFY_ZP(zp); |
|
5331 | 2595 |
|
2596 |
zilog = zfsvfs->z_log; |
|
2597 |
||
2598 |
/* |
|
2599 |
* Make sure that if we have ephemeral uid/gid or xvattr specified |
|
2600 |
* that file system is at proper version level |
|
2601 |
*/ |
|
2602 |
||
2603 |
if (zfsvfs->z_use_fuids == B_FALSE && |
|
2604 |
(((mask & AT_UID) && IS_EPHEMERAL(vap->va_uid)) || |
|
2605 |
((mask & AT_GID) && IS_EPHEMERAL(vap->va_gid)) || |
|
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2606 |
(mask & AT_XVATTR))) { |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2607 |
ZFS_EXIT(zfsvfs); |
5331 | 2608 |
return (EINVAL); |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2609 |
} |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2610 |
|
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2611 |
if (mask & AT_SIZE && vp->v_type == VDIR) { |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2612 |
ZFS_EXIT(zfsvfs); |
789 | 2613 |
return (EISDIR); |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2614 |
} |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2615 |
|
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2616 |
if (mask & AT_SIZE && vp->v_type != VREG && vp->v_type != VFIFO) { |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2617 |
ZFS_EXIT(zfsvfs); |
1308
997e6a49c409
6362908 nfsv4-test: RENAME does not check PERM with NFSv4/ZFS
marks
parents:
1298
diff
changeset
|
2618 |
return (EINVAL); |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2619 |
} |
1308
997e6a49c409
6362908 nfsv4-test: RENAME does not check PERM with NFSv4/ZFS
marks
parents:
1298
diff
changeset
|
2620 |
|
5331 | 2621 |
/* |
2622 |
* If this is an xvattr_t, then get a pointer to the structure of |
|
2623 |
* optional attributes. If this is NULL, then we have a vattr_t. |
|
2624 |
*/ |
|
2625 |
xoap = xva_getxoptattr(xvap); |
|
2626 |
||
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2627 |
xva_init(&tmpxvattr); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2628 |
|
5331 | 2629 |
/* |
2630 |
* Immutable files can only alter immutable bit and atime |
|
2631 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2632 |
if ((zp->z_pflags & ZFS_IMMUTABLE) && |
5331 | 2633 |
((mask & (AT_SIZE|AT_UID|AT_GID|AT_MTIME|AT_MODE)) || |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2634 |
((mask & AT_XVATTR) && XVA_ISSET_REQ(xvap, XAT_CREATETIME)))) { |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2635 |
ZFS_EXIT(zfsvfs); |
5331 | 2636 |
return (EPERM); |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2637 |
} |
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2638 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2639 |
if ((mask & AT_SIZE) && (zp->z_pflags & ZFS_READONLY)) { |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2640 |
ZFS_EXIT(zfsvfs); |
5331 | 2641 |
return (EPERM); |
5386
fa920350a914
6623402 command hang during 'zfs unmount -a' after run CIFS test cases
timh
parents:
5367
diff
changeset
|
2642 |
} |
789 | 2643 |
|
6064
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2644 |
/* |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2645 |
* Verify timestamps doesn't overflow 32 bits. |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2646 |
* ZFS can handle large timestamps, but 32bit syscalls can't |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2647 |
* handle times greater than 2039. This check should be removed |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2648 |
* once large timestamps are fully supported. |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2649 |
*/ |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2650 |
if (mask & (AT_ATIME | AT_MTIME)) { |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2651 |
if (((mask & AT_ATIME) && TIMESPEC_OVERFLOW(&vap->va_atime)) || |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2652 |
((mask & AT_MTIME) && TIMESPEC_OVERFLOW(&vap->va_mtime))) { |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2653 |
ZFS_EXIT(zfsvfs); |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2654 |
return (EOVERFLOW); |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2655 |
} |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2656 |
} |
45d29804ab93
6629604 ZFS: lstat64() on ZFS file returns EOVERFLOW
marks
parents:
6036
diff
changeset
|
2657 |
|
789 | 2658 |
top: |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
2659 |
attrzp = NULL; |
789 | 2660 |
|
9981
b4907297e740
6775100 stat() performance on files on zfs should be improved
Tim Haley <Tim.Haley@Sun.COM>
parents:
9951
diff
changeset
|
2661 |
/* Can this be moved to before the top label? */ |
789 | 2662 |
if (zfsvfs->z_vfs->vfs_flag & VFS_RDONLY) { |
2663 |
ZFS_EXIT(zfsvfs); |
|
2664 |
return (EROFS); |
|
2665 |
} |
|
2666 |
||
2667 |
/* |
|
2668 |
* First validate permissions |
|
2669 |
*/ |
|
2670 |
||
2671 |
if (mask & AT_SIZE) { |
|
5331 | 2672 |
err = zfs_zaccess(zp, ACE_WRITE_DATA, 0, skipaclchk, cr); |
789 | 2673 |
if (err) { |
2674 |
ZFS_EXIT(zfsvfs); |
|
2675 |
return (err); |
|
2676 |
} |
|
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2677 |
/* |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2678 |
* XXX - Note, we are not providing any open |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2679 |
* mode flags here (like FNDELAY), so we may |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2680 |
* block if there are locks present... this |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2681 |
* should be addressed in openat(). |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2682 |
*/ |
6992 | 2683 |
/* XXX - would it be OK to generate a log record here? */ |
2684 |
err = zfs_freesp(zp, vap->va_size, 0, 0, FALSE); |
|
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2685 |
if (err) { |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2686 |
ZFS_EXIT(zfsvfs); |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2687 |
return (err); |
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
2688 |
} |
789 | 2689 |
} |
2690 |
||
5331 | 2691 |
if (mask & (AT_ATIME|AT_MTIME) || |
2692 |
((mask & AT_XVATTR) && (XVA_ISSET_REQ(xvap, XAT_HIDDEN) || |
|
2693 |
XVA_ISSET_REQ(xvap, XAT_READONLY) || |
|
2694 |
XVA_ISSET_REQ(xvap, XAT_ARCHIVE) || |
|
2695 |
XVA_ISSET_REQ(xvap, XAT_CREATETIME) || |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2696 |
XVA_ISSET_REQ(xvap, XAT_SYSTEM)))) { |
5331 | 2697 |
need_policy = zfs_zaccess(zp, ACE_WRITE_ATTRIBUTES, 0, |
2698 |
skipaclchk, cr); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2699 |
} |
789 | 2700 |
|
2701 |
if (mask & (AT_UID|AT_GID)) { |
|
2702 |
int idmask = (mask & (AT_UID|AT_GID)); |
|
2703 |
int take_owner; |
|
2704 |
int take_group; |
|
2705 |
||
2706 |
/* |
|
913
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2707 |
* NOTE: even if a new mode is being set, |
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2708 |
* we may clear S_ISUID/S_ISGID bits. |
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2709 |
*/ |
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2710 |
|
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2711 |
if (!(mask & AT_MODE)) |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2712 |
vap->va_mode = zp->z_mode; |
913
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2713 |
|
e99aef503251
6299353 chown(2) fails to clear SUID/SGID bits on ZFS.
marks
parents:
905
diff
changeset
|
2714 |
/* |
789 | 2715 |
* Take ownership or chgrp to group we are a member of |
2716 |
*/ |
|
2717 |
||
2718 |
take_owner = (mask & AT_UID) && (vap->va_uid == crgetuid(cr)); |
|
5331 | 2719 |
take_group = (mask & AT_GID) && |
2720 |
zfs_groupmember(zfsvfs, vap->va_gid, cr); |
|
789 | 2721 |
|
2722 |
/* |
|
2723 |
* If both AT_UID and AT_GID are set then take_owner and |
|
2724 |
* take_group must both be set in order to allow taking |
|
2725 |
* ownership. |
|
2726 |
* |
|
2727 |
* Otherwise, send the check through secpolicy_vnode_setattr() |
|
2728 |
* |
|
2729 |
*/ |
|
2730 |
||
2731 |
if (((idmask == (AT_UID|AT_GID)) && take_owner && take_group) || |
|
2732 |
((idmask == AT_UID) && take_owner) || |
|
2733 |
((idmask == AT_GID) && take_group)) { |
|
5331 | 2734 |
if (zfs_zaccess(zp, ACE_WRITE_OWNER, 0, |
2735 |
skipaclchk, cr) == 0) { |
|
789 | 2736 |
/* |
2737 |
* Remove setuid/setgid for non-privileged users |
|
2738 |
*/ |
|
1115 | 2739 |
secpolicy_setid_clear(vap, cr); |
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2740 |
trim_mask = (mask & (AT_UID|AT_GID)); |
789 | 2741 |
} else { |
2742 |
need_policy = TRUE; |
|
2743 |
} |
|
2744 |
} else { |
|
2745 |
need_policy = TRUE; |
|
2746 |
} |
|
2747 |
} |
|
2748 |
||
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2749 |
mutex_enter(&zp->z_lock); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2750 |
oldva.va_mode = zp->z_mode; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2751 |
oldva.va_uid = zp->z_uid; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2752 |
oldva.va_gid = zp->z_gid; |
5331 | 2753 |
if (mask & AT_XVATTR) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2754 |
/* |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2755 |
* Update xvattr mask to include only those attributes |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2756 |
* that are actually changing. |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2757 |
* |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2758 |
* the bits will be restored prior to actually setting |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2759 |
* the attributes so the caller thinks they were set. |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2760 |
*/ |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2761 |
if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2762 |
if (xoap->xoa_appendonly != |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2763 |
((zp->z_pflags & ZFS_APPENDONLY) != 0)) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2764 |
need_policy = TRUE; |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2765 |
} else { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2766 |
XVA_CLR_REQ(xvap, XAT_APPENDONLY); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2767 |
XVA_SET_REQ(&tmpxvattr, XAT_APPENDONLY); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2768 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2769 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2770 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2771 |
if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2772 |
if (xoap->xoa_nounlink != |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2773 |
((zp->z_pflags & ZFS_NOUNLINK) != 0)) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2774 |
need_policy = TRUE; |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2775 |
} else { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2776 |
XVA_CLR_REQ(xvap, XAT_NOUNLINK); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2777 |
XVA_SET_REQ(&tmpxvattr, XAT_NOUNLINK); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2778 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2779 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2780 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2781 |
if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2782 |
if (xoap->xoa_immutable != |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2783 |
((zp->z_pflags & ZFS_IMMUTABLE) != 0)) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2784 |
need_policy = TRUE; |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2785 |
} else { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2786 |
XVA_CLR_REQ(xvap, XAT_IMMUTABLE); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2787 |
XVA_SET_REQ(&tmpxvattr, XAT_IMMUTABLE); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2788 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2789 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2790 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2791 |
if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2792 |
if (xoap->xoa_nodump != |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2793 |
((zp->z_pflags & ZFS_NODUMP) != 0)) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2794 |
need_policy = TRUE; |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2795 |
} else { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2796 |
XVA_CLR_REQ(xvap, XAT_NODUMP); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2797 |
XVA_SET_REQ(&tmpxvattr, XAT_NODUMP); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2798 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2799 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2800 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2801 |
if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2802 |
if (xoap->xoa_av_modified != |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2803 |
((zp->z_pflags & ZFS_AV_MODIFIED) != 0)) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2804 |
need_policy = TRUE; |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2805 |
} else { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2806 |
XVA_CLR_REQ(xvap, XAT_AV_MODIFIED); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2807 |
XVA_SET_REQ(&tmpxvattr, XAT_AV_MODIFIED); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2808 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2809 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2810 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2811 |
if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2812 |
if ((vp->v_type != VREG && |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2813 |
xoap->xoa_av_quarantined) || |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2814 |
xoap->xoa_av_quarantined != |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2815 |
((zp->z_pflags & ZFS_AV_QUARANTINED) != 0)) { |
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2816 |
need_policy = TRUE; |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2817 |
} else { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2818 |
XVA_CLR_REQ(xvap, XAT_AV_QUARANTINED); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2819 |
XVA_SET_REQ(&tmpxvattr, XAT_AV_QUARANTINED); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2820 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2821 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2822 |
|
10793
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2823 |
if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) { |
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2824 |
mutex_exit(&zp->z_lock); |
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2825 |
ZFS_EXIT(zfsvfs); |
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2826 |
return (EPERM); |
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2827 |
} |
34709091de6d
6886081 Solaris needs reparse point support (PSARC 2009/387)
Dai Ngo <dai.ngo@sun.com>
parents:
10440
diff
changeset
|
2828 |
|
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2829 |
if (need_policy == FALSE && |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2830 |
(XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP) || |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
2831 |
XVA_ISSET_REQ(xvap, XAT_OPAQUE))) { |
5331 | 2832 |
need_policy = TRUE; |
2833 |
} |
|
2834 |
} |
|
2835 |
||
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2836 |
mutex_exit(&zp->z_lock); |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2837 |
|
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2838 |
if (mask & AT_MODE) { |
5331 | 2839 |
if (zfs_zaccess(zp, ACE_WRITE_ACL, 0, skipaclchk, cr) == 0) { |
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2840 |
err = secpolicy_setid_setsticky_clear(vp, vap, |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2841 |
&oldva, cr); |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2842 |
if (err) { |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2843 |
ZFS_EXIT(zfsvfs); |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2844 |
return (err); |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2845 |
} |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2846 |
trim_mask |= AT_MODE; |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2847 |
} else { |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2848 |
need_policy = TRUE; |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2849 |
} |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2850 |
} |
789 | 2851 |
|
2852 |
if (need_policy) { |
|
1115 | 2853 |
/* |
2854 |
* If trim_mask is set then take ownership |
|
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2855 |
* has been granted or write_acl is present and user |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2856 |
* has the ability to modify mode. In that case remove |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2857 |
* UID|GID and or MODE from mask so that |
1115 | 2858 |
* secpolicy_vnode_setattr() doesn't revoke it. |
2859 |
*/ |
|
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2860 |
|
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2861 |
if (trim_mask) { |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2862 |
saved_mask = vap->va_mask; |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2863 |
vap->va_mask &= ~trim_mask; |
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2864 |
} |
789 | 2865 |
err = secpolicy_vnode_setattr(cr, vp, vap, &oldva, flags, |
5331 | 2866 |
(int (*)(void *, int, cred_t *))zfs_zaccess_unix, zp); |
789 | 2867 |
if (err) { |
2868 |
ZFS_EXIT(zfsvfs); |
|
2869 |
return (err); |
|
2870 |
} |
|
1115 | 2871 |
|
2872 |
if (trim_mask) |
|
2796
95109e1ced2b
6445680 Having write_acl allowed in an ACL doesn't give the ability to set the mode via chmod
marks
parents:
2752
diff
changeset
|
2873 |
vap->va_mask |= saved_mask; |
789 | 2874 |
} |
2875 |
||
2876 |
/* |
|
2877 |
* secpolicy_vnode_setattr, or take ownership may have |
|
2878 |
* changed va_mask |
|
2879 |
*/ |
|
2880 |
mask = vap->va_mask; |
|
2881 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2882 |
if ((mask & (AT_UID | AT_GID))) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2883 |
(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), &xattr_obj, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2884 |
sizeof (xattr_obj)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2885 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2886 |
if (xattr_obj) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2887 |
err = zfs_zget(zp->z_zfsvfs, xattr_obj, &attrzp); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2888 |
if (err) |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2889 |
goto out2; |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2890 |
} |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2891 |
if (mask & AT_UID) { |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2892 |
new_uid = zfs_fuid_create(zfsvfs, |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2893 |
(uint64_t)vap->va_uid, cr, ZFS_OWNER, &fuidp); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2894 |
if (vap->va_uid != zp->z_uid && |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2895 |
zfs_fuid_overquota(zfsvfs, B_FALSE, new_uid)) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2896 |
err = EDQUOT; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2897 |
goto out2; |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2898 |
} |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
2899 |
} |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2900 |
|
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2901 |
if (mask & AT_GID) { |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2902 |
new_gid = zfs_fuid_create(zfsvfs, (uint64_t)vap->va_gid, |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2903 |
cr, ZFS_GROUP, &fuidp); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2904 |
if (new_gid != zp->z_gid && |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2905 |
zfs_fuid_overquota(zfsvfs, B_TRUE, new_gid)) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2906 |
err = EDQUOT; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2907 |
goto out2; |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2908 |
} |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
2909 |
} |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
2910 |
} |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2911 |
tx = dmu_tx_create(zfsvfs->z_os); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2912 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2913 |
if (mask & AT_MODE) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2914 |
uint64_t pmode = zp->z_mode; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2915 |
new_mode = (pmode & S_IFMT) | (vap->va_mode & ~S_IFMT); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2916 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2917 |
if (err = zfs_acl_chmod_setattr(zp, &aclp, new_mode)) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2918 |
goto out; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2919 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2920 |
if (!zp->z_is_sa && ZFS_EXTERNAL_ACL(zp)) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2921 |
/* |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2922 |
* Are we upgrading ACL from old V0 format |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2923 |
* to V1 format? |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2924 |
*/ |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2925 |
if (zfsvfs->z_version <= ZPL_VERSION_FUID && |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2926 |
ZNODE_ACL_VERSION(zp) == |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2927 |
ZFS_ACL_VERSION_INITIAL) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2928 |
dmu_tx_hold_free(tx, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2929 |
ZFS_EXTERNAL_ACL(zp), 0, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2930 |
DMU_OBJECT_END); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2931 |
dmu_tx_hold_write(tx, DMU_NEW_OBJECT, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2932 |
0, aclp->z_acl_bytes); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2933 |
} else { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2934 |
dmu_tx_hold_write(tx, ZFS_EXTERNAL_ACL(zp), 0, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2935 |
aclp->z_acl_bytes); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2936 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2937 |
} else if (!zp->z_is_sa && aclp->z_acl_bytes > ZFS_ACE_SPACE) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2938 |
dmu_tx_hold_write(tx, DMU_NEW_OBJECT, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2939 |
0, aclp->z_acl_bytes); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2940 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2941 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2942 |
} else { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2943 |
if ((mask & AT_XVATTR) && |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2944 |
XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2945 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2946 |
else |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2947 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2948 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2949 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2950 |
if (attrzp) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2951 |
dmu_tx_hold_sa(tx, attrzp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2952 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2953 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2954 |
fuid_dirtied = zfsvfs->z_fuid_dirty; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2955 |
if (fuid_dirtied) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2956 |
zfs_fuid_txhold(zfsvfs, tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2957 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2958 |
zfs_sa_upgrade_txholds(tx, zp); |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
2959 |
|
8227 | 2960 |
err = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 2961 |
if (err) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2962 |
if (err == ERESTART) |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
2963 |
dmu_tx_wait(tx); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
2964 |
goto out; |
789 | 2965 |
} |
2966 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2967 |
count = 0; |
789 | 2968 |
/* |
2969 |
* Set each attribute requested. |
|
2970 |
* We group settings according to the locks they need to acquire. |
|
2971 |
* |
|
2972 |
* Note: you cannot set ctime directly, although it will be |
|
2973 |
* updated as a side-effect of calling this function. |
|
2974 |
*/ |
|
2975 |
||
2976 |
mutex_enter(&zp->z_lock); |
|
2977 |
||
12394
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2978 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2979 |
&zp->z_pflags, sizeof (zp->z_pflags)); |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2980 |
|
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2981 |
if (attrzp) { |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2982 |
mutex_enter(&attrzp->z_lock); |
12394
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2983 |
SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2984 |
SA_ZPL_FLAGS(zfsvfs), NULL, &attrzp->z_pflags, |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2985 |
sizeof (attrzp->z_pflags)); |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2986 |
} |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
2987 |
|
12164
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2988 |
if (mask & (AT_UID|AT_GID)) { |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2989 |
|
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2990 |
if (mask & AT_UID) { |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2991 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2992 |
&new_uid, sizeof (new_uid)); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2993 |
zp->z_uid = zfs_fuid_map_id(zfsvfs, new_uid, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2994 |
cr, ZFS_OWNER); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2995 |
if (attrzp) { |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2996 |
SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2997 |
SA_ZPL_UID(zfsvfs), NULL, &new_uid, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
2998 |
sizeof (new_uid)); |
12394
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
2999 |
attrzp->z_uid = zp->z_uid; |
12164
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3000 |
} |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3001 |
} |
12164
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3002 |
|
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3003 |
if (mask & AT_GID) { |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3004 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3005 |
NULL, &new_gid, sizeof (new_gid)); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3006 |
zp->z_gid = zfs_fuid_map_id(zfsvfs, new_gid, cr, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3007 |
ZFS_GROUP); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3008 |
if (attrzp) { |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3009 |
SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3010 |
SA_ZPL_GID(zfsvfs), NULL, &new_gid, |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3011 |
sizeof (new_gid)); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3012 |
attrzp->z_gid = zp->z_gid; |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3013 |
} |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3014 |
} |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3015 |
if (!(mask & AT_MODE)) { |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3016 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3017 |
NULL, &new_mode, sizeof (new_mode)); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3018 |
new_mode = zp->z_mode; |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3019 |
} |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3020 |
err = zfs_acl_chown_setattr(zp); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3021 |
ASSERT(err == 0); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3022 |
if (attrzp) { |
12164
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3023 |
err = zfs_acl_chown_setattr(attrzp); |
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3024 |
ASSERT(err == 0); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3025 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3026 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3027 |
|
789 | 3028 |
if (mask & AT_MODE) { |
5824 | 3029 |
mutex_enter(&zp->z_acl_lock); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3030 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3031 |
&new_mode, sizeof (new_mode)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3032 |
zp->z_mode = new_mode; |
12164
0eb8d6741e37
PSARC/2010/029 Improved ACL interoperability
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12123
diff
changeset
|
3033 |
ASSERT3U((uintptr_t)aclp, !=, NULL); |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3034 |
err = zfs_aclset_common(zp, aclp, cr, tx); |
789 | 3035 |
ASSERT3U(err, ==, 0); |
10143
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
3036 |
zp->z_acl_cached = aclp; |
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
3037 |
aclp = NULL; |
5824 | 3038 |
mutex_exit(&zp->z_acl_lock); |
789 | 3039 |
} |
3040 |
||
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3041 |
if (attrzp) |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3042 |
mutex_exit(&attrzp->z_lock); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3043 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3044 |
if (mask & AT_ATIME) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3045 |
ZFS_TIME_ENCODE(&vap->va_atime, zp->z_atime); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3046 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3047 |
&zp->z_atime, sizeof (zp->z_atime)); |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3048 |
} |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3049 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3050 |
if (mask & AT_MTIME) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3051 |
ZFS_TIME_ENCODE(&vap->va_mtime, mtime); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3052 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3053 |
mtime, sizeof (mtime)); |
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3054 |
} |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3055 |
|
6992 | 3056 |
/* XXX - shouldn't this be done *before* the ATIME/MTIME checks? */ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3057 |
if (mask & AT_SIZE && !(mask & AT_MTIME)) { |
12394
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
3058 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
3059 |
NULL, mtime, sizeof (mtime)); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3060 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3061 |
&ctime, sizeof (ctime)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3062 |
zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3063 |
B_TRUE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3064 |
} else if (mask != 0) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3065 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3066 |
&ctime, sizeof (ctime)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3067 |
zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime, ctime, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3068 |
B_TRUE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3069 |
if (attrzp) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3070 |
SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3071 |
SA_ZPL_CTIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3072 |
&ctime, sizeof (ctime)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3073 |
zfs_tstamp_update_setup(attrzp, STATE_CHANGED, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3074 |
mtime, ctime, B_TRUE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3075 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3076 |
} |
5331 | 3077 |
/* |
3078 |
* Do this after setting timestamps to prevent timestamp |
|
3079 |
* update from toggling bit |
|
3080 |
*/ |
|
3081 |
||
3082 |
if (xoap && (mask & AT_XVATTR)) { |
|
8190
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3083 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3084 |
/* |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3085 |
* restore trimmed off masks |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3086 |
* so that return masks can be set for caller. |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3087 |
*/ |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3088 |
|
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3089 |
if (XVA_ISSET_REQ(&tmpxvattr, XAT_APPENDONLY)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3090 |
XVA_SET_REQ(xvap, XAT_APPENDONLY); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3091 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3092 |
if (XVA_ISSET_REQ(&tmpxvattr, XAT_NOUNLINK)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3093 |
XVA_SET_REQ(xvap, XAT_NOUNLINK); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3094 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3095 |
if (XVA_ISSET_REQ(&tmpxvattr, XAT_IMMUTABLE)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3096 |
XVA_SET_REQ(xvap, XAT_IMMUTABLE); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3097 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3098 |
if (XVA_ISSET_REQ(&tmpxvattr, XAT_NODUMP)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3099 |
XVA_SET_REQ(xvap, XAT_NODUMP); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3100 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3101 |
if (XVA_ISSET_REQ(&tmpxvattr, XAT_AV_MODIFIED)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3102 |
XVA_SET_REQ(xvap, XAT_AV_MODIFIED); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3103 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3104 |
if (XVA_ISSET_REQ(&tmpxvattr, XAT_AV_QUARANTINED)) { |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3105 |
XVA_SET_REQ(xvap, XAT_AV_QUARANTINED); |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3106 |
} |
6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
8059
diff
changeset
|
3107 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3108 |
if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) |
5331 | 3109 |
ASSERT(vp->v_type == VREG); |
3110 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3111 |
zfs_xvattr_set(zp, xvap, tx); |
5331 | 3112 |
} |
789 | 3113 |
|
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3114 |
if (fuid_dirtied) |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3115 |
zfs_fuid_sync(zfsvfs, tx); |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3116 |
|
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
3117 |
if (mask != 0) |
5331 | 3118 |
zfs_log_setattr(zilog, tx, TX_SETATTR, zp, vap, mask, fuidp); |
3119 |
||
789 | 3120 |
mutex_exit(&zp->z_lock); |
3121 |
||
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3122 |
out: |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3123 |
if (err == 0 && attrzp) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3124 |
err2 = sa_bulk_update(attrzp->z_sa_hdl, xattr_bulk, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3125 |
xattr_count, tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3126 |
ASSERT(err2 == 0); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3127 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3128 |
|
1231
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3129 |
if (attrzp) |
64215f768e86
6354804 The file's ACL was changed when cp it from one ZFS file system to another one.
marks
parents:
1141
diff
changeset
|
3130 |
VN_RELE(ZTOV(attrzp)); |
10143
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
3131 |
if (aclp) |
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
3132 |
zfs_acl_free(aclp); |
d2d432dfe597
6857433 memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
Tim Haley <Tim.Haley@Sun.COM>
parents:
9981
diff
changeset
|
3133 |
|
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3134 |
if (fuidp) { |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3135 |
zfs_fuid_info_free(fuidp); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3136 |
fuidp = NULL; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3137 |
} |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3138 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3139 |
if (err) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3140 |
dmu_tx_abort(tx); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3141 |
if (err == ERESTART) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3142 |
goto top; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3143 |
} else { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3144 |
err2 = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3145 |
dmu_tx_commit(tx); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3146 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3147 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3148 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3149 |
out2: |
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3150 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3151 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3152 |
|
789 | 3153 |
ZFS_EXIT(zfsvfs); |
3154 |
return (err); |
|
3155 |
} |
|
3156 |
||
3271 | 3157 |
typedef struct zfs_zlock { |
3158 |
krwlock_t *zl_rwlock; /* lock we acquired */ |
|
3159 |
znode_t *zl_znode; /* znode we held */ |
|
3160 |
struct zfs_zlock *zl_next; /* next in list */ |
|
3161 |
} zfs_zlock_t; |
|
3162 |
||
3163 |
/* |
|
3164 |
* Drop locks and release vnodes that were held by zfs_rename_lock(). |
|
3165 |
*/ |
|
3166 |
static void |
|
3167 |
zfs_rename_unlock(zfs_zlock_t **zlpp) |
|
3168 |
{ |
|
3169 |
zfs_zlock_t *zl; |
|
3170 |
||
3171 |
while ((zl = *zlpp) != NULL) { |
|
3172 |
if (zl->zl_znode != NULL) |
|
3173 |
VN_RELE(ZTOV(zl->zl_znode)); |
|
3174 |
rw_exit(zl->zl_rwlock); |
|
3175 |
*zlpp = zl->zl_next; |
|
3176 |
kmem_free(zl, sizeof (*zl)); |
|
3177 |
} |
|
3178 |
} |
|
3179 |
||
789 | 3180 |
/* |
3181 |
* Search back through the directory tree, using the ".." entries. |
|
3182 |
* Lock each directory in the chain to prevent concurrent renames. |
|
3183 |
* Fail any attempt to move a directory into one of its own descendants. |
|
3184 |
* XXX - z_parent_lock can overlap with map or grow locks |
|
3185 |
*/ |
|
3186 |
static int |
|
3187 |
zfs_rename_lock(znode_t *szp, znode_t *tdzp, znode_t *sdzp, zfs_zlock_t **zlpp) |
|
3188 |
{ |
|
3189 |
zfs_zlock_t *zl; |
|
3638
6b28ebc717aa
6496357 spec_fsync() is useless on devices that do write caching
billm
parents:
3461
diff
changeset
|
3190 |
znode_t *zp = tdzp; |
789 | 3191 |
uint64_t rootid = zp->z_zfsvfs->z_root; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3192 |
uint64_t oidp = zp->z_id; |
789 | 3193 |
krwlock_t *rwlp = &szp->z_parent_lock; |
3194 |
krw_t rw = RW_WRITER; |
|
3195 |
||
3196 |
/* |
|
3197 |
* First pass write-locks szp and compares to zp->z_id. |
|
3198 |
* Later passes read-lock zp and compare to zp->z_parent. |
|
3199 |
*/ |
|
3200 |
do { |
|
3271 | 3201 |
if (!rw_tryenter(rwlp, rw)) { |
3202 |
/* |
|
3203 |
* Another thread is renaming in this path. |
|
3204 |
* Note that if we are a WRITER, we don't have any |
|
3205 |
* parent_locks held yet. |
|
3206 |
*/ |
|
3207 |
if (rw == RW_READER && zp->z_id > szp->z_id) { |
|
3208 |
/* |
|
3209 |
* Drop our locks and restart |
|
3210 |
*/ |
|
3211 |
zfs_rename_unlock(&zl); |
|
3212 |
*zlpp = NULL; |
|
3213 |
zp = tdzp; |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3214 |
oidp = zp->z_id; |
3271 | 3215 |
rwlp = &szp->z_parent_lock; |
3216 |
rw = RW_WRITER; |
|
3217 |
continue; |
|
3218 |
} else { |
|
3219 |
/* |
|
3220 |
* Wait for other thread to drop its locks |
|
3221 |
*/ |
|
3222 |
rw_enter(rwlp, rw); |
|
3223 |
} |
|
3224 |
} |
|
3225 |
||
789 | 3226 |
zl = kmem_alloc(sizeof (*zl), KM_SLEEP); |
3227 |
zl->zl_rwlock = rwlp; |
|
3228 |
zl->zl_znode = NULL; |
|
3229 |
zl->zl_next = *zlpp; |
|
3230 |
*zlpp = zl; |
|
3231 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3232 |
if (oidp == szp->z_id) /* We're a descendant of szp */ |
789 | 3233 |
return (EINVAL); |
3234 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3235 |
if (oidp == rootid) /* We've hit the top */ |
789 | 3236 |
return (0); |
3237 |
||
3238 |
if (rw == RW_READER) { /* i.e. not the first pass */ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3239 |
int error = zfs_zget(zp->z_zfsvfs, oidp, &zp); |
789 | 3240 |
if (error) |
3241 |
return (error); |
|
3242 |
zl->zl_znode = zp; |
|
3243 |
} |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3244 |
(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_PARENT(zp->z_zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3245 |
&oidp, sizeof (oidp)); |
789 | 3246 |
rwlp = &zp->z_parent_lock; |
3247 |
rw = RW_READER; |
|
3248 |
||
3249 |
} while (zp->z_id != sdzp->z_id); |
|
3250 |
||
3251 |
return (0); |
|
3252 |
} |
|
3253 |
||
3254 |
/* |
|
3255 |
* Move an entry from the provided source directory to the target |
|
3256 |
* directory. Change the entry name as indicated. |
|
3257 |
* |
|
3258 |
* IN: sdvp - Source directory containing the "old entry". |
|
3259 |
* snm - Old entry name. |
|
3260 |
* tdvp - Target directory to contain the "new entry". |
|
3261 |
* tnm - New entry name. |
|
3262 |
* cr - credentials of caller. |
|
5331 | 3263 |
* ct - caller context |
3264 |
* flags - case flags |
|
789 | 3265 |
* |
3266 |
* RETURN: 0 if success |
|
3267 |
* error code if failure |
|
3268 |
* |
|
3269 |
* Timestamps: |
|
3270 |
* sdvp,tdvp - ctime|mtime updated |
|
3271 |
*/ |
|
5331 | 3272 |
/*ARGSUSED*/ |
789 | 3273 |
static int |
5331 | 3274 |
zfs_rename(vnode_t *sdvp, char *snm, vnode_t *tdvp, char *tnm, cred_t *cr, |
3275 |
caller_context_t *ct, int flags) |
|
789 | 3276 |
{ |
3277 |
znode_t *tdzp, *szp, *tzp; |
|
3278 |
znode_t *sdzp = VTOZ(sdvp); |
|
3279 |
zfsvfs_t *zfsvfs = sdzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
3280 |
zilog_t *zilog; |
789 | 3281 |
vnode_t *realvp; |
3282 |
zfs_dirlock_t *sdl, *tdl; |
|
3283 |
dmu_tx_t *tx; |
|
3284 |
zfs_zlock_t *zl; |
|
5331 | 3285 |
int cmp, serr, terr; |
3286 |
int error = 0; |
|
3287 |
int zflg = 0; |
|
789 | 3288 |
|
5367 | 3289 |
ZFS_ENTER(zfsvfs); |
3290 |
ZFS_VERIFY_ZP(sdzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
3291 |
zilog = zfsvfs->z_log; |
789 | 3292 |
|
3293 |
/* |
|
3294 |
* Make sure we have the real vp for the target directory. |
|
3295 |
*/ |
|
5331 | 3296 |
if (VOP_REALVP(tdvp, &realvp, ct) == 0) |
789 | 3297 |
tdvp = realvp; |
3298 |
||
12079
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3299 |
if (tdvp->v_vfsp != sdvp->v_vfsp || zfsctl_is_node(tdvp)) { |
789 | 3300 |
ZFS_EXIT(zfsvfs); |
3301 |
return (EXDEV); |
|
3302 |
} |
|
3303 |
||
3304 |
tdzp = VTOZ(tdvp); |
|
5367 | 3305 |
ZFS_VERIFY_ZP(tdzp); |
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3306 |
if (zfsvfs->z_utf8 && u8_validate(tnm, |
5331 | 3307 |
strlen(tnm), NULL, U8_VALIDATE_ENTIRE, &error) < 0) { |
3308 |
ZFS_EXIT(zfsvfs); |
|
3309 |
return (EILSEQ); |
|
3310 |
} |
|
3311 |
||
3312 |
if (flags & FIGNORECASE) |
|
3313 |
zflg |= ZCILOOK; |
|
3314 |
||
789 | 3315 |
top: |
3316 |
szp = NULL; |
|
3317 |
tzp = NULL; |
|
3318 |
zl = NULL; |
|
3319 |
||
3320 |
/* |
|
3321 |
* This is to prevent the creation of links into attribute space |
|
3322 |
* by renaming a linked file into/outof an attribute directory. |
|
3323 |
* See the comment in zfs_link() for why this is considered bad. |
|
3324 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3325 |
if ((tdzp->z_pflags & ZFS_XATTR) != (sdzp->z_pflags & ZFS_XATTR)) { |
789 | 3326 |
ZFS_EXIT(zfsvfs); |
3327 |
return (EINVAL); |
|
3328 |
} |
|
3329 |
||
3330 |
/* |
|
3331 |
* Lock source and target directory entries. To prevent deadlock, |
|
3332 |
* a lock ordering must be defined. We lock the directory with |
|
3333 |
* the smallest object id first, or if it's a tie, the one with |
|
3334 |
* the lexically first name. |
|
3335 |
*/ |
|
3336 |
if (sdzp->z_id < tdzp->z_id) { |
|
3337 |
cmp = -1; |
|
3338 |
} else if (sdzp->z_id > tdzp->z_id) { |
|
3339 |
cmp = 1; |
|
3340 |
} else { |
|
5331 | 3341 |
/* |
3342 |
* First compare the two name arguments without |
|
3343 |
* considering any case folding. |
|
3344 |
*/ |
|
3345 |
int nofold = (zfsvfs->z_norm & ~U8_TEXTPREP_TOUPPER); |
|
3346 |
||
3347 |
cmp = u8_strcmp(snm, tnm, 0, nofold, U8_UNICODE_LATEST, &error); |
|
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3348 |
ASSERT(error == 0 || !zfsvfs->z_utf8); |
789 | 3349 |
if (cmp == 0) { |
3350 |
/* |
|
3351 |
* POSIX: "If the old argument and the new argument |
|
3352 |
* both refer to links to the same existing file, |
|
3353 |
* the rename() function shall return successfully |
|
3354 |
* and perform no other action." |
|
3355 |
*/ |
|
3356 |
ZFS_EXIT(zfsvfs); |
|
3357 |
return (0); |
|
3358 |
} |
|
5331 | 3359 |
/* |
3360 |
* If the file system is case-folding, then we may |
|
3361 |
* have some more checking to do. A case-folding file |
|
3362 |
* system is either supporting mixed case sensitivity |
|
3363 |
* access or is completely case-insensitive. Note |
|
3364 |
* that the file system is always case preserving. |
|
3365 |
* |
|
3366 |
* In mixed sensitivity mode case sensitive behavior |
|
3367 |
* is the default. FIGNORECASE must be used to |
|
3368 |
* explicitly request case insensitive behavior. |
|
3369 |
* |
|
3370 |
* If the source and target names provided differ only |
|
3371 |
* by case (e.g., a request to rename 'tim' to 'Tim'), |
|
3372 |
* we will treat this as a special case in the |
|
3373 |
* case-insensitive mode: as long as the source name |
|
3374 |
* is an exact match, we will allow this to proceed as |
|
3375 |
* a name-change request. |
|
3376 |
*/ |
|
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3377 |
if ((zfsvfs->z_case == ZFS_CASE_INSENSITIVE || |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3378 |
(zfsvfs->z_case == ZFS_CASE_MIXED && |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3379 |
flags & FIGNORECASE)) && |
5331 | 3380 |
u8_strcmp(snm, tnm, 0, zfsvfs->z_norm, U8_UNICODE_LATEST, |
3381 |
&error) == 0) { |
|
3382 |
/* |
|
3383 |
* case preserving rename request, require exact |
|
3384 |
* name matches |
|
3385 |
*/ |
|
3386 |
zflg |= ZCIEXACT; |
|
3387 |
zflg &= ~ZCILOOK; |
|
3388 |
} |
|
789 | 3389 |
} |
5331 | 3390 |
|
11321
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3391 |
/* |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3392 |
* If the source and destination directories are the same, we should |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3393 |
* grab the z_name_lock of that directory only once. |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3394 |
*/ |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3395 |
if (sdzp == tdzp) { |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3396 |
zflg |= ZHAVELOCK; |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3397 |
rw_enter(&sdzp->z_name_lock, RW_READER); |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3398 |
} |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3399 |
|
789 | 3400 |
if (cmp < 0) { |
5331 | 3401 |
serr = zfs_dirent_lock(&sdl, sdzp, snm, &szp, |
3402 |
ZEXISTS | zflg, NULL, NULL); |
|
3403 |
terr = zfs_dirent_lock(&tdl, |
|
3404 |
tdzp, tnm, &tzp, ZRENAMING | zflg, NULL, NULL); |
|
789 | 3405 |
} else { |
5331 | 3406 |
terr = zfs_dirent_lock(&tdl, |
3407 |
tdzp, tnm, &tzp, zflg, NULL, NULL); |
|
3408 |
serr = zfs_dirent_lock(&sdl, |
|
3409 |
sdzp, snm, &szp, ZEXISTS | ZRENAMING | zflg, |
|
3410 |
NULL, NULL); |
|
789 | 3411 |
} |
3412 |
||
3413 |
if (serr) { |
|
3414 |
/* |
|
3415 |
* Source entry invalid or not there. |
|
3416 |
*/ |
|
3417 |
if (!terr) { |
|
3418 |
zfs_dirent_unlock(tdl); |
|
3419 |
if (tzp) |
|
3420 |
VN_RELE(ZTOV(tzp)); |
|
3421 |
} |
|
11321
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3422 |
|
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3423 |
if (sdzp == tdzp) |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3424 |
rw_exit(&sdzp->z_name_lock); |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3425 |
|
789 | 3426 |
if (strcmp(snm, "..") == 0) |
3427 |
serr = EINVAL; |
|
3428 |
ZFS_EXIT(zfsvfs); |
|
3429 |
return (serr); |
|
3430 |
} |
|
3431 |
if (terr) { |
|
3432 |
zfs_dirent_unlock(sdl); |
|
3433 |
VN_RELE(ZTOV(szp)); |
|
11321
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3434 |
|
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3435 |
if (sdzp == tdzp) |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3436 |
rw_exit(&sdzp->z_name_lock); |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3437 |
|
789 | 3438 |
if (strcmp(tnm, "..") == 0) |
3439 |
terr = EINVAL; |
|
3440 |
ZFS_EXIT(zfsvfs); |
|
3441 |
return (terr); |
|
3442 |
} |
|
3443 |
||
3444 |
/* |
|
3445 |
* Must have write access at the source to remove the old entry |
|
3446 |
* and write access at the target to create the new entry. |
|
3447 |
* Note that if target and source are the same, this can be |
|
3448 |
* done in a single check. |
|
3449 |
*/ |
|
3450 |
||
3451 |
if (error = zfs_zaccess_rename(sdzp, szp, tdzp, tzp, cr)) |
|
3452 |
goto out; |
|
3453 |
||
3454 |
if (ZTOV(szp)->v_type == VDIR) { |
|
3455 |
/* |
|
3456 |
* Check to make sure rename is valid. |
|
3457 |
* Can't do a move like this: /usr/a/b to /usr/a/b/c/d |
|
3458 |
*/ |
|
3459 |
if (error = zfs_rename_lock(szp, tdzp, sdzp, &zl)) |
|
3460 |
goto out; |
|
3461 |
} |
|
3462 |
||
3463 |
/* |
|
3464 |
* Does target exist? |
|
3465 |
*/ |
|
3466 |
if (tzp) { |
|
3467 |
/* |
|
3468 |
* Source and target must be the same type. |
|
3469 |
*/ |
|
3470 |
if (ZTOV(szp)->v_type == VDIR) { |
|
3471 |
if (ZTOV(tzp)->v_type != VDIR) { |
|
3472 |
error = ENOTDIR; |
|
3473 |
goto out; |
|
3474 |
} |
|
3475 |
} else { |
|
3476 |
if (ZTOV(tzp)->v_type == VDIR) { |
|
3477 |
error = EISDIR; |
|
3478 |
goto out; |
|
3479 |
} |
|
3480 |
} |
|
3481 |
/* |
|
3482 |
* POSIX dictates that when the source and target |
|
3483 |
* entries refer to the same file object, rename |
|
3484 |
* must do nothing and exit without error. |
|
3485 |
*/ |
|
3486 |
if (szp->z_id == tzp->z_id) { |
|
3487 |
error = 0; |
|
3488 |
goto out; |
|
3489 |
} |
|
3490 |
} |
|
3491 |
||
5331 | 3492 |
vnevent_rename_src(ZTOV(szp), sdvp, snm, ct); |
789 | 3493 |
if (tzp) |
5331 | 3494 |
vnevent_rename_dest(ZTOV(tzp), tdvp, tnm, ct); |
4863 | 3495 |
|
3496 |
/* |
|
3497 |
* notify the target directory if it is not the same |
|
3498 |
* as source directory. |
|
3499 |
*/ |
|
3500 |
if (tdvp != sdvp) { |
|
5331 | 3501 |
vnevent_rename_dest_dir(tdvp, ct); |
4863 | 3502 |
} |
789 | 3503 |
|
3504 |
tx = dmu_tx_create(zfsvfs->z_os); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3505 |
dmu_tx_hold_sa(tx, szp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3506 |
dmu_tx_hold_sa(tx, sdzp->z_sa_hdl, B_FALSE); |
1544 | 3507 |
dmu_tx_hold_zap(tx, sdzp->z_id, FALSE, snm); |
3508 |
dmu_tx_hold_zap(tx, tdzp->z_id, TRUE, tnm); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3509 |
if (sdzp != tdzp) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3510 |
dmu_tx_hold_sa(tx, tdzp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3511 |
zfs_sa_upgrade_txholds(tx, tdzp); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3512 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3513 |
if (tzp) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3514 |
dmu_tx_hold_sa(tx, tzp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3515 |
zfs_sa_upgrade_txholds(tx, tzp); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3516 |
} |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3517 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3518 |
zfs_sa_upgrade_txholds(tx, szp); |
3461 | 3519 |
dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); |
8227 | 3520 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 3521 |
if (error) { |
3522 |
if (zl != NULL) |
|
3523 |
zfs_rename_unlock(&zl); |
|
3524 |
zfs_dirent_unlock(sdl); |
|
3525 |
zfs_dirent_unlock(tdl); |
|
11321
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3526 |
|
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3527 |
if (sdzp == tdzp) |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3528 |
rw_exit(&sdzp->z_name_lock); |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3529 |
|
789 | 3530 |
VN_RELE(ZTOV(szp)); |
3531 |
if (tzp) |
|
3532 |
VN_RELE(ZTOV(tzp)); |
|
8227 | 3533 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3534 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3535 |
dmu_tx_abort(tx); |
789 | 3536 |
goto top; |
3537 |
} |
|
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3538 |
dmu_tx_abort(tx); |
789 | 3539 |
ZFS_EXIT(zfsvfs); |
3540 |
return (error); |
|
3541 |
} |
|
3542 |
||
3543 |
if (tzp) /* Attempt to remove the existing target */ |
|
5331 | 3544 |
error = zfs_link_destroy(tdl, tzp, tx, zflg, NULL); |
789 | 3545 |
|
3546 |
if (error == 0) { |
|
3547 |
error = zfs_link_create(tdl, szp, tx, ZRENAMING); |
|
3548 |
if (error == 0) { |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3549 |
szp->z_pflags |= ZFS_AV_MODIFIED; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3550 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3551 |
error = sa_update(szp->z_sa_hdl, SA_ZPL_FLAGS(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3552 |
(void *)&szp->z_pflags, sizeof (uint64_t), tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3553 |
ASSERT3U(error, ==, 0); |
5331 | 3554 |
|
789 | 3555 |
error = zfs_link_destroy(sdl, szp, tx, ZRENAMING, NULL); |
12413
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3556 |
if (error == 0) { |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3557 |
zfs_log_rename(zilog, tx, TX_RENAME | |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3558 |
(flags & FIGNORECASE ? TX_CI : 0), |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3559 |
sdzp, sdl->dl_name, tdzp, tdl->dl_name, |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3560 |
szp); |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3561 |
|
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3562 |
/* |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3563 |
* Update path information for the target vnode |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3564 |
*/ |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3565 |
vn_renamepath(tdvp, ZTOV(szp), tnm, |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3566 |
strlen(tnm)); |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3567 |
} else { |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3568 |
/* |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3569 |
* At this point, we have successfully created |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3570 |
* the target name, but have failed to remove |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3571 |
* the source name. Since the create was done |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3572 |
* with the ZRENAMING flag, there are |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3573 |
* complications; for one, the link count is |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3574 |
* wrong. The easiest way to deal with this |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3575 |
* is to remove the newly created target, and |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3576 |
* return the original error. This must |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3577 |
* succeed; fortunately, it is very unlikely to |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3578 |
* fail, since we just created it. |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3579 |
*/ |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3580 |
VERIFY3U(zfs_link_destroy(tdl, szp, tx, |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3581 |
ZRENAMING, NULL), ==, 0); |
72ca7d8ab18e
6894240 zfs has a partially deleted file
Sam Falkner <Sam.Falkner@Sun.COM>
parents:
12394
diff
changeset
|
3582 |
} |
789 | 3583 |
} |
3584 |
} |
|
3585 |
||
3586 |
dmu_tx_commit(tx); |
|
3587 |
out: |
|
3588 |
if (zl != NULL) |
|
3589 |
zfs_rename_unlock(&zl); |
|
3590 |
||
3591 |
zfs_dirent_unlock(sdl); |
|
3592 |
zfs_dirent_unlock(tdl); |
|
3593 |
||
11321
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3594 |
if (sdzp == tdzp) |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3595 |
rw_exit(&sdzp->z_name_lock); |
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3596 |
|
506b7043a14c
6847615 deadlock between zfs_dirent_lock and zfs_rmdir
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11134
diff
changeset
|
3597 |
|
789 | 3598 |
VN_RELE(ZTOV(szp)); |
3599 |
if (tzp) |
|
3600 |
VN_RELE(ZTOV(tzp)); |
|
3601 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3602 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3603 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3604 |
|
789 | 3605 |
ZFS_EXIT(zfsvfs); |
3606 |
return (error); |
|
3607 |
} |
|
3608 |
||
3609 |
/* |
|
3610 |
* Insert the indicated symbolic reference entry into the directory. |
|
3611 |
* |
|
3612 |
* IN: dvp - Directory to contain new symbolic link. |
|
3613 |
* link - Name for new symlink entry. |
|
3614 |
* vap - Attributes of new entry. |
|
3615 |
* target - Target path of new symlink. |
|
3616 |
* cr - credentials of caller. |
|
5331 | 3617 |
* ct - caller context |
3618 |
* flags - case flags |
|
789 | 3619 |
* |
3620 |
* RETURN: 0 if success |
|
3621 |
* error code if failure |
|
3622 |
* |
|
3623 |
* Timestamps: |
|
3624 |
* dvp - ctime|mtime updated |
|
3625 |
*/ |
|
5331 | 3626 |
/*ARGSUSED*/ |
789 | 3627 |
static int |
5331 | 3628 |
zfs_symlink(vnode_t *dvp, char *name, vattr_t *vap, char *link, cred_t *cr, |
3629 |
caller_context_t *ct, int flags) |
|
789 | 3630 |
{ |
3631 |
znode_t *zp, *dzp = VTOZ(dvp); |
|
3632 |
zfs_dirlock_t *dl; |
|
3633 |
dmu_tx_t *tx; |
|
3634 |
zfsvfs_t *zfsvfs = dzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
3635 |
zilog_t *zilog; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3636 |
uint64_t len = strlen(link); |
789 | 3637 |
int error; |
5331 | 3638 |
int zflg = ZNEW; |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3639 |
zfs_acl_ids_t acl_ids; |
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3640 |
boolean_t fuid_dirtied; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3641 |
uint64_t txtype = TX_SYMLINK; |
789 | 3642 |
|
3643 |
ASSERT(vap->va_type == VLNK); |
|
3644 |
||
5367 | 3645 |
ZFS_ENTER(zfsvfs); |
3646 |
ZFS_VERIFY_ZP(dzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
3647 |
zilog = zfsvfs->z_log; |
5331 | 3648 |
|
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3649 |
if (zfsvfs->z_utf8 && u8_validate(name, strlen(name), |
5331 | 3650 |
NULL, U8_VALIDATE_ENTIRE, &error) < 0) { |
3651 |
ZFS_EXIT(zfsvfs); |
|
3652 |
return (EILSEQ); |
|
3653 |
} |
|
3654 |
if (flags & FIGNORECASE) |
|
3655 |
zflg |= ZCILOOK; |
|
789 | 3656 |
|
3657 |
if (len > MAXPATHLEN) { |
|
3658 |
ZFS_EXIT(zfsvfs); |
|
3659 |
return (ENAMETOOLONG); |
|
3660 |
} |
|
3661 |
||
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3662 |
if ((error = zfs_acl_ids_create(dzp, 0, |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3663 |
vap, cr, NULL, &acl_ids)) != 0) { |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3664 |
ZFS_EXIT(zfsvfs); |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3665 |
return (error); |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3666 |
} |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3667 |
top: |
789 | 3668 |
/* |
3669 |
* Attempt to lock directory; fail if entry already exists. |
|
3670 |
*/ |
|
5331 | 3671 |
error = zfs_dirent_lock(&dl, dzp, name, &zp, zflg, NULL, NULL); |
3672 |
if (error) { |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3673 |
zfs_acl_ids_free(&acl_ids); |
789 | 3674 |
ZFS_EXIT(zfsvfs); |
3675 |
return (error); |
|
3676 |
} |
|
3677 |
||
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3678 |
if (error = zfs_zaccess(dzp, ACE_ADD_FILE, 0, B_FALSE, cr)) { |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3679 |
zfs_acl_ids_free(&acl_ids); |
12421
d38fccc4d212
6952968 fstest hanging on symlink/06 testcase on nevada, build 140
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12413
diff
changeset
|
3680 |
zfs_dirent_unlock(dl); |
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3681 |
ZFS_EXIT(zfsvfs); |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3682 |
return (error); |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3683 |
} |
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3684 |
|
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3685 |
if (zfs_acl_ids_overquota(zfsvfs, &acl_ids)) { |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3686 |
zfs_acl_ids_free(&acl_ids); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3687 |
zfs_dirent_unlock(dl); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3688 |
ZFS_EXIT(zfsvfs); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3689 |
return (EDQUOT); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3690 |
} |
789 | 3691 |
tx = dmu_tx_create(zfsvfs->z_os); |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3692 |
fuid_dirtied = zfsvfs->z_fuid_dirty; |
789 | 3693 |
dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, MAX(1, len)); |
1544 | 3694 |
dmu_tx_hold_zap(tx, dzp->z_id, TRUE, name); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3695 |
dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3696 |
ZFS_SA_BASE_ATTR_SIZE + len); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3697 |
dmu_tx_hold_sa(tx, dzp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3698 |
if (!zfsvfs->z_use_sa && acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3699 |
dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3700 |
acl_ids.z_aclp->z_acl_bytes); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3701 |
} |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3702 |
if (fuid_dirtied) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
3703 |
zfs_fuid_txhold(zfsvfs, tx); |
8227 | 3704 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 3705 |
if (error) { |
3706 |
zfs_dirent_unlock(dl); |
|
8227 | 3707 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3708 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3709 |
dmu_tx_abort(tx); |
789 | 3710 |
goto top; |
3711 |
} |
|
12302
44e9cbdf497d
6946681 System panics in a loop with "pf zfs_fuid_create"
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12294
diff
changeset
|
3712 |
zfs_acl_ids_free(&acl_ids); |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3713 |
dmu_tx_abort(tx); |
789 | 3714 |
ZFS_EXIT(zfsvfs); |
3715 |
return (error); |
|
3716 |
} |
|
3717 |
||
3718 |
/* |
|
3719 |
* Create a new object for the symlink. |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3720 |
* for version 4 ZPL datsets the symlink will be an SA attribute |
789 | 3721 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3722 |
zfs_mknode(dzp, vap, tx, cr, 0, &zp, &acl_ids); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3723 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3724 |
if (fuid_dirtied) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3725 |
zfs_fuid_sync(zfsvfs, tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3726 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3727 |
if (zp->z_is_sa) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3728 |
error = sa_update(zp->z_sa_hdl, SA_ZPL_SYMLINK(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3729 |
link, len, tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3730 |
else |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3731 |
zfs_sa_symlink(zp, link, len, tx); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3732 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3733 |
zp->z_size = len; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3734 |
(void) sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3735 |
&zp->z_size, sizeof (zp->z_size), tx); |
789 | 3736 |
/* |
3737 |
* Insert the new object into the directory. |
|
3738 |
*/ |
|
3739 |
(void) zfs_link_create(dl, zp, tx, ZNEW); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3740 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3741 |
if (flags & FIGNORECASE) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3742 |
txtype |= TX_CI; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3743 |
zfs_log_symlink(zilog, tx, txtype, dzp, zp, name, link); |
9179
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3744 |
|
d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
9141
diff
changeset
|
3745 |
zfs_acl_ids_free(&acl_ids); |
789 | 3746 |
|
3747 |
dmu_tx_commit(tx); |
|
3748 |
||
3749 |
zfs_dirent_unlock(dl); |
|
3750 |
||
3751 |
VN_RELE(ZTOV(zp)); |
|
3752 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3753 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3754 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3755 |
|
789 | 3756 |
ZFS_EXIT(zfsvfs); |
3757 |
return (error); |
|
3758 |
} |
|
3759 |
||
3760 |
/* |
|
3761 |
* Return, in the buffer contained in the provided uio structure, |
|
3762 |
* the symbolic path referred to by vp. |
|
3763 |
* |
|
3764 |
* IN: vp - vnode of symbolic link. |
|
3765 |
* uoip - structure to contain the link path. |
|
3766 |
* cr - credentials of caller. |
|
5331 | 3767 |
* ct - caller context |
789 | 3768 |
* |
3769 |
* OUT: uio - structure to contain the link path. |
|
3770 |
* |
|
3771 |
* RETURN: 0 if success |
|
3772 |
* error code if failure |
|
3773 |
* |
|
3774 |
* Timestamps: |
|
3775 |
* vp - atime updated |
|
3776 |
*/ |
|
3777 |
/* ARGSUSED */ |
|
3778 |
static int |
|
5331 | 3779 |
zfs_readlink(vnode_t *vp, uio_t *uio, cred_t *cr, caller_context_t *ct) |
789 | 3780 |
{ |
3781 |
znode_t *zp = VTOZ(vp); |
|
3782 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
3783 |
int error; |
|
3784 |
||
5367 | 3785 |
ZFS_ENTER(zfsvfs); |
3786 |
ZFS_VERIFY_ZP(zp); |
|
789 | 3787 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3788 |
if (zp->z_is_sa) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3789 |
error = sa_lookup_uio(zp->z_sa_hdl, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3790 |
SA_ZPL_SYMLINK(zfsvfs), uio); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3791 |
else |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3792 |
error = zfs_sa_readlink(zp, uio); |
789 | 3793 |
|
3794 |
ZFS_ACCESSTIME_STAMP(zfsvfs, zp); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3795 |
|
789 | 3796 |
ZFS_EXIT(zfsvfs); |
3797 |
return (error); |
|
3798 |
} |
|
3799 |
||
3800 |
/* |
|
3801 |
* Insert a new entry into directory tdvp referencing svp. |
|
3802 |
* |
|
3803 |
* IN: tdvp - Directory to contain new entry. |
|
3804 |
* svp - vnode of new entry. |
|
3805 |
* name - name of new entry. |
|
3806 |
* cr - credentials of caller. |
|
5331 | 3807 |
* ct - caller context |
789 | 3808 |
* |
3809 |
* RETURN: 0 if success |
|
3810 |
* error code if failure |
|
3811 |
* |
|
3812 |
* Timestamps: |
|
3813 |
* tdvp - ctime|mtime updated |
|
3814 |
* svp - ctime updated |
|
3815 |
*/ |
|
3816 |
/* ARGSUSED */ |
|
3817 |
static int |
|
5331 | 3818 |
zfs_link(vnode_t *tdvp, vnode_t *svp, char *name, cred_t *cr, |
3819 |
caller_context_t *ct, int flags) |
|
789 | 3820 |
{ |
3821 |
znode_t *dzp = VTOZ(tdvp); |
|
3822 |
znode_t *tzp, *szp; |
|
3823 |
zfsvfs_t *zfsvfs = dzp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
3824 |
zilog_t *zilog; |
789 | 3825 |
zfs_dirlock_t *dl; |
3826 |
dmu_tx_t *tx; |
|
3827 |
vnode_t *realvp; |
|
3828 |
int error; |
|
5331 | 3829 |
int zf = ZNEW; |
12079
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3830 |
uint64_t parent; |
789 | 3831 |
|
3832 |
ASSERT(tdvp->v_type == VDIR); |
|
3833 |
||
5367 | 3834 |
ZFS_ENTER(zfsvfs); |
3835 |
ZFS_VERIFY_ZP(dzp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
3836 |
zilog = zfsvfs->z_log; |
789 | 3837 |
|
5331 | 3838 |
if (VOP_REALVP(svp, &realvp, ct) == 0) |
789 | 3839 |
svp = realvp; |
3840 |
||
12079
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3841 |
/* |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3842 |
* POSIX dictates that we return EPERM here. |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3843 |
* Better choices include ENOTSUP or EISDIR. |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3844 |
*/ |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3845 |
if (svp->v_type == VDIR) { |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3846 |
ZFS_EXIT(zfsvfs); |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3847 |
return (EPERM); |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3848 |
} |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3849 |
|
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3850 |
if (svp->v_vfsp != tdvp->v_vfsp || zfsctl_is_node(svp)) { |
789 | 3851 |
ZFS_EXIT(zfsvfs); |
3852 |
return (EXDEV); |
|
3853 |
} |
|
12079
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3854 |
|
5367 | 3855 |
szp = VTOZ(svp); |
3856 |
ZFS_VERIFY_ZP(szp); |
|
789 | 3857 |
|
12079
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3858 |
/* Prevent links to .zfs/shares files */ |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3859 |
|
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3860 |
if ((error = sa_lookup(szp->z_sa_hdl, SA_ZPL_PARENT(zfsvfs), |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3861 |
&parent, sizeof (uint64_t))) != 0) { |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3862 |
ZFS_EXIT(zfsvfs); |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3863 |
return (error); |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3864 |
} |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3865 |
if (parent == zfsvfs->z_shares_dir) { |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3866 |
ZFS_EXIT(zfsvfs); |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3867 |
return (EPERM); |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3868 |
} |
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3869 |
|
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5446
diff
changeset
|
3870 |
if (zfsvfs->z_utf8 && u8_validate(name, |
5331 | 3871 |
strlen(name), NULL, U8_VALIDATE_ENTIRE, &error) < 0) { |
3872 |
ZFS_EXIT(zfsvfs); |
|
3873 |
return (EILSEQ); |
|
3874 |
} |
|
3875 |
if (flags & FIGNORECASE) |
|
3876 |
zf |= ZCILOOK; |
|
3877 |
||
789 | 3878 |
/* |
3879 |
* We do not support links between attributes and non-attributes |
|
3880 |
* because of the potential security risk of creating links |
|
3881 |
* into "normal" file space in order to circumvent restrictions |
|
3882 |
* imposed in attribute space. |
|
3883 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3884 |
if ((szp->z_pflags & ZFS_XATTR) != (dzp->z_pflags & ZFS_XATTR)) { |
789 | 3885 |
ZFS_EXIT(zfsvfs); |
3886 |
return (EINVAL); |
|
3887 |
} |
|
3888 |
||
3889 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3890 |
if (szp->z_uid != crgetuid(cr) && |
789 | 3891 |
secpolicy_basic_link(cr) != 0) { |
3892 |
ZFS_EXIT(zfsvfs); |
|
3893 |
return (EPERM); |
|
3894 |
} |
|
3895 |
||
5331 | 3896 |
if (error = zfs_zaccess(dzp, ACE_ADD_FILE, 0, B_FALSE, cr)) { |
789 | 3897 |
ZFS_EXIT(zfsvfs); |
3898 |
return (error); |
|
3899 |
} |
|
3900 |
||
12079
13822b941977
6939941 problem with moving files in zfs
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
3901 |
top: |
789 | 3902 |
/* |
3903 |
* Attempt to lock directory; fail if entry already exists. |
|
3904 |
*/ |
|
5331 | 3905 |
error = zfs_dirent_lock(&dl, dzp, name, &tzp, zf, NULL, NULL); |
3906 |
if (error) { |
|
789 | 3907 |
ZFS_EXIT(zfsvfs); |
3908 |
return (error); |
|
3909 |
} |
|
3910 |
||
3911 |
tx = dmu_tx_create(zfsvfs->z_os); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3912 |
dmu_tx_hold_sa(tx, szp->z_sa_hdl, B_FALSE); |
1544 | 3913 |
dmu_tx_hold_zap(tx, dzp->z_id, TRUE, name); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3914 |
zfs_sa_upgrade_txholds(tx, szp); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
3915 |
zfs_sa_upgrade_txholds(tx, dzp); |
8227 | 3916 |
error = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 3917 |
if (error) { |
3918 |
zfs_dirent_unlock(dl); |
|
8227 | 3919 |
if (error == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3920 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3921 |
dmu_tx_abort(tx); |
789 | 3922 |
goto top; |
3923 |
} |
|
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
3924 |
dmu_tx_abort(tx); |
789 | 3925 |
ZFS_EXIT(zfsvfs); |
3926 |
return (error); |
|
3927 |
} |
|
3928 |
||
3929 |
error = zfs_link_create(dl, szp, tx, 0); |
|
3930 |
||
5331 | 3931 |
if (error == 0) { |
3932 |
uint64_t txtype = TX_LINK; |
|
3933 |
if (flags & FIGNORECASE) |
|
3934 |
txtype |= TX_CI; |
|
3935 |
zfs_log_link(zilog, tx, txtype, dzp, szp, name); |
|
3936 |
} |
|
789 | 3937 |
|
3938 |
dmu_tx_commit(tx); |
|
3939 |
||
3940 |
zfs_dirent_unlock(dl); |
|
3941 |
||
4863 | 3942 |
if (error == 0) { |
5331 | 3943 |
vnevent_link(svp, ct); |
4863 | 3944 |
} |
3945 |
||
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3946 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3947 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
3948 |
|
789 | 3949 |
ZFS_EXIT(zfsvfs); |
3950 |
return (error); |
|
3951 |
} |
|
3952 |
||
3953 |
/* |
|
3954 |
* zfs_null_putapage() is used when the file system has been force |
|
3955 |
* unmounted. It just drops the pages. |
|
3956 |
*/ |
|
3957 |
/* ARGSUSED */ |
|
3958 |
static int |
|
3959 |
zfs_null_putapage(vnode_t *vp, page_t *pp, u_offset_t *offp, |
|
3960 |
size_t *lenp, int flags, cred_t *cr) |
|
3961 |
{ |
|
3962 |
pvn_write_done(pp, B_INVAL|B_FORCE|B_ERROR); |
|
3963 |
return (0); |
|
3964 |
} |
|
3965 |
||
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3966 |
/* |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3967 |
* Push a page out to disk, klustering if possible. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3968 |
* |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3969 |
* IN: vp - file to push page to. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3970 |
* pp - page to push. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3971 |
* flags - additional flags. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3972 |
* cr - credentials of caller. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3973 |
* |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3974 |
* OUT: offp - start of range pushed. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3975 |
* lenp - len of range pushed. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3976 |
* |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3977 |
* RETURN: 0 if success |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3978 |
* error code if failure |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3979 |
* |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3980 |
* NOTE: callers must have locked the page to be pushed. On |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3981 |
* exit, the page (and all other pages in the kluster) must be |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3982 |
* unlocked. |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3983 |
*/ |
789 | 3984 |
/* ARGSUSED */ |
3985 |
static int |
|
3986 |
zfs_putapage(vnode_t *vp, page_t *pp, u_offset_t *offp, |
|
3987 |
size_t *lenp, int flags, cred_t *cr) |
|
3988 |
{ |
|
3989 |
znode_t *zp = VTOZ(vp); |
|
3990 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
3991 |
dmu_tx_t *tx; |
|
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3992 |
u_offset_t off, koff; |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3993 |
size_t len, klen; |
789 | 3994 |
int err; |
3995 |
||
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3996 |
off = pp->p_offset; |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3997 |
len = PAGESIZE; |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3998 |
/* |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
3999 |
* If our blocksize is bigger than the page size, try to kluster |
8227 | 4000 |
* multiple pages so that we write a full block (thus avoiding |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4001 |
* a read-modify-write). |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4002 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4003 |
if (off < zp->z_size && zp->z_blksz > PAGESIZE) { |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4004 |
klen = P2ROUNDUP((ulong_t)zp->z_blksz, PAGESIZE); |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4005 |
koff = ISP2(klen) ? P2ALIGN(off, (u_offset_t)klen) : 0; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4006 |
ASSERT(koff <= zp->z_size); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4007 |
if (koff + klen > zp->z_size) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4008 |
klen = P2ROUNDUP(zp->z_size - koff, (uint64_t)PAGESIZE); |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4009 |
pp = pvn_write_kluster(vp, pp, &off, &len, koff, klen, flags); |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4010 |
} |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4011 |
ASSERT3U(btop(len), ==, btopr(len)); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4012 |
|
1819 | 4013 |
/* |
4014 |
* Can't push pages past end-of-file. |
|
4015 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4016 |
if (off >= zp->z_size) { |
4709
dc10a713d1a0
6453407 rm a file when the root file system is at its quota limit reports ENOSPC
maybee
parents:
4543
diff
changeset
|
4017 |
/* ignore all pages */ |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4018 |
err = 0; |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4019 |
goto out; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4020 |
} else if (off + len > zp->z_size) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4021 |
int npages = btopr(zp->z_size - off); |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4022 |
page_t *trunc; |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4023 |
|
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4024 |
page_list_break(&pp, &trunc, npages); |
4709
dc10a713d1a0
6453407 rm a file when the root file system is at its quota limit reports ENOSPC
maybee
parents:
4543
diff
changeset
|
4025 |
/* ignore pages past end of file */ |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4026 |
if (trunc) |
4709
dc10a713d1a0
6453407 rm a file when the root file system is at its quota limit reports ENOSPC
maybee
parents:
4543
diff
changeset
|
4027 |
pvn_write_done(trunc, flags); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4028 |
len = zp->z_size - off; |
1819 | 4029 |
} |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
4030 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4031 |
if (zfs_owner_overquota(zfsvfs, zp, B_FALSE) || |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4032 |
zfs_owner_overquota(zfsvfs, zp, B_TRUE)) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
4033 |
err = EDQUOT; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
4034 |
goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9321
diff
changeset
|
4035 |
} |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4036 |
top: |
789 | 4037 |
tx = dmu_tx_create(zfsvfs->z_os); |
4038 |
dmu_tx_hold_write(tx, zp->z_id, off, len); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4039 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4040 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4041 |
zfs_sa_upgrade_txholds(tx, zp); |
8227 | 4042 |
err = dmu_tx_assign(tx, TXG_NOWAIT); |
789 | 4043 |
if (err != 0) { |
8227 | 4044 |
if (err == ERESTART) { |
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
4045 |
dmu_tx_wait(tx); |
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
4046 |
dmu_tx_abort(tx); |
789 | 4047 |
goto top; |
4048 |
} |
|
2113
0510bb40c993
6430121 3-way deadlock involving tc_lock within zfs
ahrens
parents:
1941
diff
changeset
|
4049 |
dmu_tx_abort(tx); |
789 | 4050 |
goto out; |
4051 |
} |
|
4052 |
||
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4053 |
if (zp->z_blksz <= PAGESIZE) { |
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
4054 |
caddr_t va = zfs_map_page(pp, S_READ); |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4055 |
ASSERT3U(len, <=, PAGESIZE); |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4056 |
dmu_write(zfsvfs->z_os, zp->z_id, off, len, va, tx); |
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
4057 |
zfs_unmap_page(pp, va); |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4058 |
} else { |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4059 |
err = dmu_write_pages(zfsvfs->z_os, zp->z_id, off, len, pp, tx); |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4060 |
} |
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4061 |
|
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4062 |
if (err == 0) { |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4063 |
uint64_t mtime[2], ctime[2]; |
12394
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
4064 |
sa_bulk_attr_t bulk[3]; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4065 |
int count = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4066 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4067 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4068 |
&mtime, 16); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4069 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4070 |
&ctime, 16); |
12394
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
4071 |
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, |
557921ce7bf4
6950273 CIFS attributes aren't always updated when timestamps are updated
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12302
diff
changeset
|
4072 |
&zp->z_pflags, 8); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4073 |
zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4074 |
B_TRUE); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4075 |
zfs_log_write(zfsvfs->z_log, tx, TX_WRITE, zp, off, len, 0); |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4076 |
} |
9951
a4895b3dd543
6842815 SUNWzfsu package dependency on SUNWPython is not captured
Lin Ling <Lin.Ling@Sun.COM>
parents:
9909
diff
changeset
|
4077 |
dmu_tx_commit(tx); |
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4078 |
|
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4079 |
out: |
4709
dc10a713d1a0
6453407 rm a file when the root file system is at its quota limit reports ENOSPC
maybee
parents:
4543
diff
changeset
|
4080 |
pvn_write_done(pp, (err ? B_ERROR : 0) | flags); |
789 | 4081 |
if (offp) |
4082 |
*offp = off; |
|
4083 |
if (lenp) |
|
4084 |
*lenp = len; |
|
4085 |
||
4086 |
return (err); |
|
4087 |
} |
|
4088 |
||
4089 |
/* |
|
4090 |
* Copy the portion of the file indicated from pages into the file. |
|
4091 |
* The pages are stored in a page list attached to the files vnode. |
|
4092 |
* |
|
4093 |
* IN: vp - vnode of file to push page data to. |
|
4094 |
* off - position in file to put data. |
|
4095 |
* len - amount of data to write. |
|
4096 |
* flags - flags to control the operation. |
|
4097 |
* cr - credentials of caller. |
|
5331 | 4098 |
* ct - caller context. |
789 | 4099 |
* |
4100 |
* RETURN: 0 if success |
|
4101 |
* error code if failure |
|
4102 |
* |
|
4103 |
* Timestamps: |
|
4104 |
* vp - ctime|mtime updated |
|
4105 |
*/ |
|
5331 | 4106 |
/*ARGSUSED*/ |
789 | 4107 |
static int |
5331 | 4108 |
zfs_putpage(vnode_t *vp, offset_t off, size_t len, int flags, cred_t *cr, |
4109 |
caller_context_t *ct) |
|
789 | 4110 |
{ |
4111 |
znode_t *zp = VTOZ(vp); |
|
4112 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4113 |
page_t *pp; |
|
4114 |
size_t io_len; |
|
4115 |
u_offset_t io_off; |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4116 |
uint_t blksz; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4117 |
rl_t *rl; |
789 | 4118 |
int error = 0; |
4119 |
||
5367 | 4120 |
ZFS_ENTER(zfsvfs); |
4121 |
ZFS_VERIFY_ZP(zp); |
|
789 | 4122 |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4123 |
/* |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4124 |
* Align this request to the file block size in case we kluster. |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4125 |
* XXX - this can result in pretty aggresive locking, which can |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4126 |
* impact simultanious read/write access. One option might be |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4127 |
* to break up long requests (len == 0) into block-by-block |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4128 |
* operations to get narrower locking. |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4129 |
*/ |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4130 |
blksz = zp->z_blksz; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4131 |
if (ISP2(blksz)) |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4132 |
io_off = P2ALIGN_TYPED(off, blksz, u_offset_t); |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4133 |
else |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4134 |
io_off = 0; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4135 |
if (len > 0 && ISP2(blksz)) |
9141
d51ab4b3e040
6806627 zfs_putpage gets it backwards
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8845
diff
changeset
|
4136 |
io_len = P2ROUNDUP_TYPED(len + (off - io_off), blksz, size_t); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4137 |
else |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4138 |
io_len = 0; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4139 |
|
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4140 |
if (io_len == 0) { |
789 | 4141 |
/* |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4142 |
* Search the entire vp list for pages >= io_off. |
789 | 4143 |
*/ |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4144 |
rl = zfs_range_lock(zp, io_off, UINT64_MAX, RL_WRITER); |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4145 |
error = pvn_vplist_dirty(vp, io_off, zfs_putapage, flags, cr); |
1472 | 4146 |
goto out; |
789 | 4147 |
} |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4148 |
rl = zfs_range_lock(zp, io_off, io_len, RL_WRITER); |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4149 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4150 |
if (off > zp->z_size) { |
789 | 4151 |
/* past end of file */ |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4152 |
zfs_range_unlock(rl); |
789 | 4153 |
ZFS_EXIT(zfsvfs); |
4154 |
return (0); |
|
4155 |
} |
|
4156 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4157 |
len = MIN(io_len, P2ROUNDUP(zp->z_size, PAGESIZE) - io_off); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4158 |
|
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4159 |
for (off = io_off; io_off < off + len; io_off += io_len) { |
789 | 4160 |
if ((flags & B_INVAL) || ((flags & B_ASYNC) == 0)) { |
1669 | 4161 |
pp = page_lookup(vp, io_off, |
4339 | 4162 |
(flags & (B_INVAL | B_FREE)) ? SE_EXCL : SE_SHARED); |
789 | 4163 |
} else { |
4164 |
pp = page_lookup_nowait(vp, io_off, |
|
4339 | 4165 |
(flags & B_FREE) ? SE_EXCL : SE_SHARED); |
789 | 4166 |
} |
4167 |
||
4168 |
if (pp != NULL && pvn_getdirty(pp, flags)) { |
|
4169 |
int err; |
|
4170 |
||
4171 |
/* |
|
4172 |
* Found a dirty page to push |
|
4173 |
*/ |
|
1669 | 4174 |
err = zfs_putapage(vp, pp, &io_off, &io_len, flags, cr); |
4175 |
if (err) |
|
789 | 4176 |
error = err; |
4177 |
} else { |
|
4178 |
io_len = PAGESIZE; |
|
4179 |
} |
|
4180 |
} |
|
1472 | 4181 |
out: |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4182 |
zfs_range_unlock(rl); |
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4183 |
if ((flags & B_ASYNC) == 0 || zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2638
4f583dfeae92
6413510 zfs: writing to ZFS filesystem slows down fsync() on other files in the same FS
perrin
parents:
2597
diff
changeset
|
4184 |
zil_commit(zfsvfs->z_log, UINT64_MAX, zp->z_id); |
789 | 4185 |
ZFS_EXIT(zfsvfs); |
4186 |
return (error); |
|
4187 |
} |
|
4188 |
||
5331 | 4189 |
/*ARGSUSED*/ |
789 | 4190 |
void |
5331 | 4191 |
zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) |
789 | 4192 |
{ |
4193 |
znode_t *zp = VTOZ(vp); |
|
4194 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4195 |
int error; |
|
4196 |
||
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
4197 |
rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_READER); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4198 |
if (zp->z_sa_hdl == NULL) { |
5446 | 4199 |
/* |
5642
504c84876fda
6513209 Destroying pools under stress caused a hang in arc_flush
maybee
parents:
5545
diff
changeset
|
4200 |
* The fs has been unmounted, or we did a |
504c84876fda
6513209 Destroying pools under stress caused a hang in arc_flush
maybee
parents:
5545
diff
changeset
|
4201 |
* suspend/resume and this file no longer exists. |
5446 | 4202 |
*/ |
789 | 4203 |
if (vn_has_cached_data(vp)) { |
4204 |
(void) pvn_vplist_dirty(vp, 0, zfs_null_putapage, |
|
4205 |
B_INVAL, cr); |
|
4206 |
} |
|
4207 |
||
1544 | 4208 |
mutex_enter(&zp->z_lock); |
10369
9e765fdb0c01
6832077 zfs_inactive() can clobber v_count
Chris Kirby <chris.kirby@sun.com>
parents:
10209
diff
changeset
|
4209 |
mutex_enter(&vp->v_lock); |
9e765fdb0c01
6832077 zfs_inactive() can clobber v_count
Chris Kirby <chris.kirby@sun.com>
parents:
10209
diff
changeset
|
4210 |
ASSERT(vp->v_count == 1); |
9e765fdb0c01
6832077 zfs_inactive() can clobber v_count
Chris Kirby <chris.kirby@sun.com>
parents:
10209
diff
changeset
|
4211 |
vp->v_count = 0; |
9e765fdb0c01
6832077 zfs_inactive() can clobber v_count
Chris Kirby <chris.kirby@sun.com>
parents:
10209
diff
changeset
|
4212 |
mutex_exit(&vp->v_lock); |
5446 | 4213 |
mutex_exit(&zp->z_lock); |
5642
504c84876fda
6513209 Destroying pools under stress caused a hang in arc_flush
maybee
parents:
5545
diff
changeset
|
4214 |
rw_exit(&zfsvfs->z_teardown_inactive_lock); |
5446 | 4215 |
zfs_znode_free(zp); |
789 | 4216 |
return; |
4217 |
} |
|
4218 |
||
4219 |
/* |
|
4220 |
* Attempt to push any data in the page cache. If this fails |
|
4221 |
* we will get kicked out later in zfs_zinactive(). |
|
4222 |
*/ |
|
1298 | 4223 |
if (vn_has_cached_data(vp)) { |
4224 |
(void) pvn_vplist_dirty(vp, 0, zfs_putapage, B_INVAL|B_ASYNC, |
|
4225 |
cr); |
|
4226 |
} |
|
789 | 4227 |
|
3461 | 4228 |
if (zp->z_atime_dirty && zp->z_unlinked == 0) { |
789 | 4229 |
dmu_tx_t *tx = dmu_tx_create(zfsvfs->z_os); |
4230 |
||
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4231 |
dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4232 |
zfs_sa_upgrade_txholds(tx, zp); |
789 | 4233 |
error = dmu_tx_assign(tx, TXG_WAIT); |
4234 |
if (error) { |
|
4235 |
dmu_tx_abort(tx); |
|
4236 |
} else { |
|
4237 |
mutex_enter(&zp->z_lock); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4238 |
(void) sa_update(zp->z_sa_hdl, SA_ZPL_ATIME(zfsvfs), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4239 |
(void *)&zp->z_atime, sizeof (zp->z_atime), tx); |
789 | 4240 |
zp->z_atime_dirty = 0; |
4241 |
mutex_exit(&zp->z_lock); |
|
4242 |
dmu_tx_commit(tx); |
|
4243 |
} |
|
4244 |
} |
|
4245 |
||
4246 |
zfs_zinactive(zp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
4247 |
rw_exit(&zfsvfs->z_teardown_inactive_lock); |
789 | 4248 |
} |
4249 |
||
4250 |
/* |
|
4251 |
* Bounds-check the seek operation. |
|
4252 |
* |
|
4253 |
* IN: vp - vnode seeking within |
|
4254 |
* ooff - old file offset |
|
4255 |
* noffp - pointer to new file offset |
|
5331 | 4256 |
* ct - caller context |
789 | 4257 |
* |
4258 |
* RETURN: 0 if success |
|
4259 |
* EINVAL if new offset invalid |
|
4260 |
*/ |
|
4261 |
/* ARGSUSED */ |
|
4262 |
static int |
|
5331 | 4263 |
zfs_seek(vnode_t *vp, offset_t ooff, offset_t *noffp, |
4264 |
caller_context_t *ct) |
|
789 | 4265 |
{ |
4266 |
if (vp->v_type == VDIR) |
|
4267 |
return (0); |
|
4268 |
return ((*noffp < 0 || *noffp > MAXOFFSET_T) ? EINVAL : 0); |
|
4269 |
} |
|
4270 |
||
4271 |
/* |
|
4272 |
* Pre-filter the generic locking function to trap attempts to place |
|
4273 |
* a mandatory lock on a memory mapped file. |
|
4274 |
*/ |
|
4275 |
static int |
|
4276 |
zfs_frlock(vnode_t *vp, int cmd, flock64_t *bfp, int flag, offset_t offset, |
|
5331 | 4277 |
flk_callback_t *flk_cbp, cred_t *cr, caller_context_t *ct) |
789 | 4278 |
{ |
4279 |
znode_t *zp = VTOZ(vp); |
|
4280 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4281 |
||
5367 | 4282 |
ZFS_ENTER(zfsvfs); |
4283 |
ZFS_VERIFY_ZP(zp); |
|
789 | 4284 |
|
4285 |
/* |
|
1544 | 4286 |
* We are following the UFS semantics with respect to mapcnt |
4287 |
* here: If we see that the file is mapped already, then we will |
|
4288 |
* return an error, but we don't worry about races between this |
|
4289 |
* function and zfs_map(). |
|
789 | 4290 |
*/ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4291 |
if (zp->z_mapcnt > 0 && MANDMODE(zp->z_mode)) { |
789 | 4292 |
ZFS_EXIT(zfsvfs); |
4293 |
return (EAGAIN); |
|
4294 |
} |
|
4295 |
ZFS_EXIT(zfsvfs); |
|
10896
007ca67ca400
6793877 lockd can block ZFS force-unmounting on behalf of clients
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
10800
diff
changeset
|
4296 |
return (fs_frlock(vp, cmd, bfp, flag, offset, flk_cbp, cr, ct)); |
789 | 4297 |
} |
4298 |
||
4299 |
/* |
|
4300 |
* If we can't find a page in the cache, we will create a new page |
|
4301 |
* and fill it with file data. For efficiency, we may try to fill |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4302 |
* multiple pages at once (klustering) to fill up the supplied page |
9265
0ddbce3734dc
6820295 C++ compilation fails on daily.0129 and above
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
9179
diff
changeset
|
4303 |
* list. Note that the pages to be filled are held with an exclusive |
0ddbce3734dc
6820295 C++ compilation fails on daily.0129 and above
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
9179
diff
changeset
|
4304 |
* lock to prevent access by other threads while they are being filled. |
789 | 4305 |
*/ |
4306 |
static int |
|
4307 |
zfs_fillpage(vnode_t *vp, u_offset_t off, struct seg *seg, |
|
4308 |
caddr_t addr, page_t *pl[], size_t plsz, enum seg_rw rw) |
|
4309 |
{ |
|
4310 |
znode_t *zp = VTOZ(vp); |
|
4311 |
page_t *pp, *cur_pp; |
|
4312 |
objset_t *os = zp->z_zfsvfs->z_os; |
|
4313 |
u_offset_t io_off, total; |
|
4314 |
size_t io_len; |
|
4315 |
int err; |
|
4316 |
||
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4317 |
if (plsz == PAGESIZE || zp->z_blksz <= PAGESIZE) { |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4318 |
/* |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4319 |
* We only have a single page, don't bother klustering |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4320 |
*/ |
789 | 4321 |
io_off = off; |
4322 |
io_len = PAGESIZE; |
|
9265
0ddbce3734dc
6820295 C++ compilation fails on daily.0129 and above
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
9179
diff
changeset
|
4323 |
pp = page_create_va(vp, io_off, io_len, |
0ddbce3734dc
6820295 C++ compilation fails on daily.0129 and above
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
9179
diff
changeset
|
4324 |
PG_EXCL | PG_WAIT, seg, addr); |
789 | 4325 |
} else { |
4326 |
/* |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4327 |
* Try to find enough pages to fill the page list |
789 | 4328 |
*/ |
4329 |
pp = pvn_read_kluster(vp, off, seg, addr, &io_off, |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4330 |
&io_len, off, plsz, 0); |
789 | 4331 |
} |
4332 |
if (pp == NULL) { |
|
4333 |
/* |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4334 |
* The page already exists, nothing to do here. |
789 | 4335 |
*/ |
4336 |
*pl = NULL; |
|
4337 |
return (0); |
|
4338 |
} |
|
4339 |
||
4340 |
/* |
|
4341 |
* Fill the pages in the kluster. |
|
4342 |
*/ |
|
4343 |
cur_pp = pp; |
|
4344 |
for (total = io_off + io_len; io_off < total; io_off += PAGESIZE) { |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4345 |
caddr_t va; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4346 |
|
2688
12e2ad22b970
6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store
maybee
parents:
2638
diff
changeset
|
4347 |
ASSERT3U(io_off, ==, cur_pp->p_offset); |
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
4348 |
va = zfs_map_page(cur_pp, S_WRITE); |
9512
64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9412
diff
changeset
|
4349 |
err = dmu_read(os, zp->z_id, io_off, PAGESIZE, va, |
64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
9412
diff
changeset
|
4350 |
DMU_READ_PREFETCH); |
7315
cdba25672122
6735592 "zio" vmem arenas are confusing, not reported separately
Jonathan W Adams <Jonathan.Adams@Sun.COM>
parents:
7294
diff
changeset
|
4351 |
zfs_unmap_page(cur_pp, va); |
789 | 4352 |
if (err) { |
4353 |
/* On error, toss the entire kluster */ |
|
4354 |
pvn_read_done(pp, B_ERROR); |
|
7294 | 4355 |
/* convert checksum errors into IO errors */ |
4356 |
if (err == ECKSUM) |
|
4357 |
err = EIO; |
|
789 | 4358 |
return (err); |
4359 |
} |
|
4360 |
cur_pp = cur_pp->p_next; |
|
4361 |
} |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4362 |
|
789 | 4363 |
/* |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4364 |
* Fill in the page list array from the kluster starting |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4365 |
* from the desired offset `off'. |
789 | 4366 |
* NOTE: the page list will always be null terminated. |
4367 |
*/ |
|
4368 |
pvn_plist_init(pp, pl, plsz, off, io_len, rw); |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4369 |
ASSERT(pl == NULL || (*pl)->p_offset == off); |
789 | 4370 |
|
4371 |
return (0); |
|
4372 |
} |
|
4373 |
||
4374 |
/* |
|
4375 |
* Return pointers to the pages for the file region [off, off + len] |
|
4376 |
* in the pl array. If plsz is greater than len, this function may |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4377 |
* also return page pointers from after the specified region |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4378 |
* (i.e. the region [off, off + plsz]). These additional pages are |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4379 |
* only returned if they are already in the cache, or were created as |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4380 |
* part of a klustered read. |
789 | 4381 |
* |
4382 |
* IN: vp - vnode of file to get data from. |
|
4383 |
* off - position in file to get data from. |
|
4384 |
* len - amount of data to retrieve. |
|
4385 |
* plsz - length of provided page list. |
|
4386 |
* seg - segment to obtain pages for. |
|
4387 |
* addr - virtual address of fault. |
|
4388 |
* rw - mode of created pages. |
|
4389 |
* cr - credentials of caller. |
|
5331 | 4390 |
* ct - caller context. |
789 | 4391 |
* |
4392 |
* OUT: protp - protection mode of created pages. |
|
4393 |
* pl - list of pages created. |
|
4394 |
* |
|
4395 |
* RETURN: 0 if success |
|
4396 |
* error code if failure |
|
4397 |
* |
|
4398 |
* Timestamps: |
|
4399 |
* vp - atime updated |
|
4400 |
*/ |
|
4401 |
/* ARGSUSED */ |
|
4402 |
static int |
|
4403 |
zfs_getpage(vnode_t *vp, offset_t off, size_t len, uint_t *protp, |
|
4404 |
page_t *pl[], size_t plsz, struct seg *seg, caddr_t addr, |
|
5331 | 4405 |
enum seg_rw rw, cred_t *cr, caller_context_t *ct) |
789 | 4406 |
{ |
4407 |
znode_t *zp = VTOZ(vp); |
|
4408 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4409 |
page_t **pl0 = pl; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4410 |
int err = 0; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4411 |
|
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4412 |
/* we do our own caching, faultahead is unnecessary */ |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4413 |
if (pl == NULL) |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4414 |
return (0); |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4415 |
else if (len > plsz) |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4416 |
len = plsz; |
8681
ec4ccb69025b
6800028 Panic in ZFS when running cthon tests
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8636
diff
changeset
|
4417 |
else |
ec4ccb69025b
6800028 Panic in ZFS when running cthon tests
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8636
diff
changeset
|
4418 |
len = P2ROUNDUP(len, PAGESIZE); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4419 |
ASSERT(plsz >= len); |
789 | 4420 |
|
5367 | 4421 |
ZFS_ENTER(zfsvfs); |
4422 |
ZFS_VERIFY_ZP(zp); |
|
789 | 4423 |
|
4424 |
if (protp) |
|
4425 |
*protp = PROT_ALL; |
|
4426 |
||
4427 |
/* |
|
9265
0ddbce3734dc
6820295 C++ compilation fails on daily.0129 and above
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
9179
diff
changeset
|
4428 |
* Loop through the requested range [off, off + len) looking |
789 | 4429 |
* for pages. If we don't find a page, we will need to create |
4430 |
* a new page and fill it with data from the file. |
|
4431 |
*/ |
|
4432 |
while (len > 0) { |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4433 |
if (*pl = page_lookup(vp, off, SE_SHARED)) |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4434 |
*(pl+1) = NULL; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4435 |
else if (err = zfs_fillpage(vp, off, seg, addr, pl, plsz, rw)) |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4436 |
goto out; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4437 |
while (*pl) { |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4438 |
ASSERT3U((*pl)->p_offset, ==, off); |
789 | 4439 |
off += PAGESIZE; |
4440 |
addr += PAGESIZE; |
|
8681
ec4ccb69025b
6800028 Panic in ZFS when running cthon tests
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8636
diff
changeset
|
4441 |
if (len > 0) { |
ec4ccb69025b
6800028 Panic in ZFS when running cthon tests
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8636
diff
changeset
|
4442 |
ASSERT3U(len, >=, PAGESIZE); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4443 |
len -= PAGESIZE; |
8681
ec4ccb69025b
6800028 Panic in ZFS when running cthon tests
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8636
diff
changeset
|
4444 |
} |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4445 |
ASSERT3U(plsz, >=, PAGESIZE); |
789 | 4446 |
plsz -= PAGESIZE; |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4447 |
pl++; |
789 | 4448 |
} |
4449 |
} |
|
4450 |
||
4451 |
/* |
|
4452 |
* Fill out the page array with any pages already in the cache. |
|
4453 |
*/ |
|
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4454 |
while (plsz > 0 && |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4455 |
(*pl++ = page_lookup_nowait(vp, off, SE_SHARED))) { |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4456 |
off += PAGESIZE; |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4457 |
plsz -= PAGESIZE; |
789 | 4458 |
} |
4459 |
out: |
|
2752
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4460 |
if (err) { |
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4461 |
/* |
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4462 |
* Release any pages we have previously locked. |
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4463 |
*/ |
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4464 |
while (pl > pl0) |
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4465 |
page_unlock(*--pl); |
8636
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4466 |
} else { |
7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage()
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
8227
diff
changeset
|
4467 |
ZFS_ACCESSTIME_STAMP(zfsvfs, zp); |
2752
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4468 |
} |
2b25a96fc433
6438702 error handling in zfs_getpage() can trigger "page not locked" panic
perrin
parents:
2688
diff
changeset
|
4469 |
|
789 | 4470 |
*pl = NULL; |
4471 |
||
4472 |
ZFS_EXIT(zfsvfs); |
|
4473 |
return (err); |
|
4474 |
} |
|
4475 |
||
1544 | 4476 |
/* |
4477 |
* Request a memory map for a section of a file. This code interacts |
|
4478 |
* with common code and the VM system as follows: |
|
4479 |
* |
|
4480 |
* common code calls mmap(), which ends up in smmap_common() |
|
4481 |
* |
|
4482 |
* this calls VOP_MAP(), which takes you into (say) zfs |
|
4483 |
* |
|
4484 |
* zfs_map() calls as_map(), passing segvn_create() as the callback |
|
4485 |
* |
|
4486 |
* segvn_create() creates the new segment and calls VOP_ADDMAP() |
|
4487 |
* |
|
4488 |
* zfs_addmap() updates z_mapcnt |
|
4489 |
*/ |
|
5331 | 4490 |
/*ARGSUSED*/ |
789 | 4491 |
static int |
4492 |
zfs_map(vnode_t *vp, offset_t off, struct as *as, caddr_t *addrp, |
|
5331 | 4493 |
size_t len, uchar_t prot, uchar_t maxprot, uint_t flags, cred_t *cr, |
4494 |
caller_context_t *ct) |
|
789 | 4495 |
{ |
4496 |
znode_t *zp = VTOZ(vp); |
|
4497 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4498 |
segvn_crargs_t vn_a; |
|
4499 |
int error; |
|
4500 |
||
5929
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4501 |
ZFS_ENTER(zfsvfs); |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4502 |
ZFS_VERIFY_ZP(zp); |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4503 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4504 |
if ((prot & PROT_WRITE) && (zp->z_pflags & |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4505 |
(ZFS_IMMUTABLE | ZFS_READONLY | ZFS_APPENDONLY))) { |
5929
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4506 |
ZFS_EXIT(zfsvfs); |
5331 | 4507 |
return (EPERM); |
5929
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4508 |
} |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4509 |
|
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4510 |
if ((prot & (PROT_READ | PROT_EXEC)) && |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4511 |
(zp->z_pflags & ZFS_AV_QUARANTINED)) { |
5929
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4512 |
ZFS_EXIT(zfsvfs); |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4513 |
return (EACCES); |
07d036def59b
6650101 SNAS: Read access is allowed after stream file is quarantined from CIFS share.
marks
parents:
5824
diff
changeset
|
4514 |
} |
789 | 4515 |
|
4516 |
if (vp->v_flag & VNOMAP) { |
|
4517 |
ZFS_EXIT(zfsvfs); |
|
4518 |
return (ENOSYS); |
|
4519 |
} |
|
4520 |
||
4521 |
if (off < 0 || len > MAXOFFSET_T - off) { |
|
4522 |
ZFS_EXIT(zfsvfs); |
|
4523 |
return (ENXIO); |
|
4524 |
} |
|
4525 |
||
4526 |
if (vp->v_type != VREG) { |
|
4527 |
ZFS_EXIT(zfsvfs); |
|
4528 |
return (ENODEV); |
|
4529 |
} |
|
4530 |
||
4531 |
/* |
|
4532 |
* If file is locked, disallow mapping. |
|
4533 |
*/ |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4534 |
if (MANDMODE(zp->z_mode) && vn_has_flocks(vp)) { |
1544 | 4535 |
ZFS_EXIT(zfsvfs); |
4536 |
return (EAGAIN); |
|
789 | 4537 |
} |
4538 |
||
4539 |
as_rangelock(as); |
|
6036 | 4540 |
error = choose_addr(as, addrp, len, off, ADDR_VACALIGN, flags); |
4541 |
if (error != 0) { |
|
4542 |
as_rangeunlock(as); |
|
4543 |
ZFS_EXIT(zfsvfs); |
|
4544 |
return (error); |
|
789 | 4545 |
} |
4546 |
||
4547 |
vn_a.vp = vp; |
|
4548 |
vn_a.offset = (u_offset_t)off; |
|
4549 |
vn_a.type = flags & MAP_TYPE; |
|
4550 |
vn_a.prot = prot; |
|
4551 |
vn_a.maxprot = maxprot; |
|
4552 |
vn_a.cred = cr; |
|
4553 |
vn_a.amp = NULL; |
|
4554 |
vn_a.flags = flags & ~MAP_TYPE; |
|
1417
fa316336e215
6377034 setting physmem in /etc/system does not have desired effect on x86
kchow
parents:
1394
diff
changeset
|
4555 |
vn_a.szc = 0; |
fa316336e215
6377034 setting physmem in /etc/system does not have desired effect on x86
kchow
parents:
1394
diff
changeset
|
4556 |
vn_a.lgrp_mem_policy_flags = 0; |
789 | 4557 |
|
4558 |
error = as_map(as, *addrp, len, segvn_create, &vn_a); |
|
4559 |
||
4560 |
as_rangeunlock(as); |
|
4561 |
ZFS_EXIT(zfsvfs); |
|
4562 |
return (error); |
|
4563 |
} |
|
4564 |
||
4565 |
/* ARGSUSED */ |
|
4566 |
static int |
|
4567 |
zfs_addmap(vnode_t *vp, offset_t off, struct as *as, caddr_t addr, |
|
5331 | 4568 |
size_t len, uchar_t prot, uchar_t maxprot, uint_t flags, cred_t *cr, |
4569 |
caller_context_t *ct) |
|
789 | 4570 |
{ |
1544 | 4571 |
uint64_t pages = btopr(len); |
4572 |
||
4573 |
atomic_add_64(&VTOZ(vp)->z_mapcnt, pages); |
|
789 | 4574 |
return (0); |
4575 |
} |
|
4576 |
||
1773
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4577 |
/* |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4578 |
* The reason we push dirty pages as part of zfs_delmap() is so that we get a |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4579 |
* more accurate mtime for the associated file. Since we don't have a way of |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4580 |
* detecting when the data was actually modified, we have to resort to |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4581 |
* heuristics. If an explicit msync() is done, then we mark the mtime when the |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4582 |
* last page is pushed. The problem occurs when the msync() call is omitted, |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4583 |
* which by far the most common case: |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4584 |
* |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4585 |
* open() |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4586 |
* mmap() |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4587 |
* <modify memory> |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4588 |
* munmap() |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4589 |
* close() |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4590 |
* <time lapse> |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4591 |
* putpage() via fsflush |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4592 |
* |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4593 |
* If we wait until fsflush to come along, we can have a modification time that |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4594 |
* is some arbitrary point in the future. In order to prevent this in the |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4595 |
* common case, we flush pages whenever a (MAP_SHARED, PROT_WRITE) mapping is |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4596 |
* torn down. |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4597 |
*/ |
789 | 4598 |
/* ARGSUSED */ |
4599 |
static int |
|
4600 |
zfs_delmap(vnode_t *vp, offset_t off, struct as *as, caddr_t addr, |
|
5331 | 4601 |
size_t len, uint_t prot, uint_t maxprot, uint_t flags, cred_t *cr, |
4602 |
caller_context_t *ct) |
|
789 | 4603 |
{ |
1544 | 4604 |
uint64_t pages = btopr(len); |
4605 |
||
4606 |
ASSERT3U(VTOZ(vp)->z_mapcnt, >=, pages); |
|
4607 |
atomic_add_64(&VTOZ(vp)->z_mapcnt, -pages); |
|
1773
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4608 |
|
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4609 |
if ((flags & MAP_SHARED) && (prot & PROT_WRITE) && |
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4610 |
vn_has_cached_data(vp)) |
5331 | 4611 |
(void) VOP_PUTPAGE(vp, off, len, B_ASYNC, cr, ct); |
1773
d6e4f2855c14
6407791 bringover into ZFS results in s. files newer than extracted source
eschrock
parents:
1757
diff
changeset
|
4612 |
|
789 | 4613 |
return (0); |
4614 |
} |
|
4615 |
||
4616 |
/* |
|
4617 |
* Free or allocate space in a file. Currently, this function only |
|
4618 |
* supports the `F_FREESP' command. However, this command is somewhat |
|
4619 |
* misnamed, as its functionality includes the ability to allocate as |
|
4620 |
* well as free space. |
|
4621 |
* |
|
4622 |
* IN: vp - vnode of file to free data in. |
|
4623 |
* cmd - action to take (only F_FREESP supported). |
|
4624 |
* bfp - section of file to free/alloc. |
|
4625 |
* flag - current file open mode flags. |
|
4626 |
* offset - current file offset. |
|
4627 |
* cr - credentials of caller [UNUSED]. |
|
5331 | 4628 |
* ct - caller context. |
789 | 4629 |
* |
4630 |
* RETURN: 0 if success |
|
4631 |
* error code if failure |
|
4632 |
* |
|
4633 |
* Timestamps: |
|
4634 |
* vp - ctime|mtime updated |
|
4635 |
*/ |
|
4636 |
/* ARGSUSED */ |
|
4637 |
static int |
|
4638 |
zfs_space(vnode_t *vp, int cmd, flock64_t *bfp, int flag, |
|
4639 |
offset_t offset, cred_t *cr, caller_context_t *ct) |
|
4640 |
{ |
|
4641 |
znode_t *zp = VTOZ(vp); |
|
4642 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4643 |
uint64_t off, len; |
|
4644 |
int error; |
|
4645 |
||
5367 | 4646 |
ZFS_ENTER(zfsvfs); |
4647 |
ZFS_VERIFY_ZP(zp); |
|
789 | 4648 |
|
4649 |
if (cmd != F_FREESP) { |
|
4650 |
ZFS_EXIT(zfsvfs); |
|
4651 |
return (EINVAL); |
|
4652 |
} |
|
4653 |
||
4654 |
if (error = convoff(vp, bfp, 0, offset)) { |
|
4655 |
ZFS_EXIT(zfsvfs); |
|
4656 |
return (error); |
|
4657 |
} |
|
4658 |
||
4659 |
if (bfp->l_len < 0) { |
|
4660 |
ZFS_EXIT(zfsvfs); |
|
4661 |
return (EINVAL); |
|
4662 |
} |
|
4663 |
||
4664 |
off = bfp->l_start; |
|
1669 | 4665 |
len = bfp->l_len; /* 0 means from off to end of file */ |
1878
c22df0f5603f
6413573 deadlock between fsflush() and zfs_create()
maybee
parents:
1819
diff
changeset
|
4666 |
|
6992 | 4667 |
error = zfs_freesp(zp, off, len, flag, TRUE); |
789 | 4668 |
|
4669 |
ZFS_EXIT(zfsvfs); |
|
4670 |
return (error); |
|
4671 |
} |
|
4672 |
||
5331 | 4673 |
/*ARGSUSED*/ |
789 | 4674 |
static int |
5331 | 4675 |
zfs_fid(vnode_t *vp, fid_t *fidp, caller_context_t *ct) |
789 | 4676 |
{ |
4677 |
znode_t *zp = VTOZ(vp); |
|
4678 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
4863
diff
changeset
|
4679 |
uint32_t gen; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4680 |
uint64_t gen64; |
789 | 4681 |
uint64_t object = zp->z_id; |
4682 |
zfid_short_t *zfid; |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4683 |
int size, i, error; |
789 | 4684 |
|
5367 | 4685 |
ZFS_ENTER(zfsvfs); |
4686 |
ZFS_VERIFY_ZP(zp); |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4687 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4688 |
if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zfsvfs), |
12218
49ce8ba18d5c
6945935 potential mutex problem in zfs_zaccess_aces_check()
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12178
diff
changeset
|
4689 |
&gen64, sizeof (uint64_t))) != 0) { |
49ce8ba18d5c
6945935 potential mutex problem in zfs_zaccess_aces_check()
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12178
diff
changeset
|
4690 |
ZFS_EXIT(zfsvfs); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4691 |
return (error); |
12218
49ce8ba18d5c
6945935 potential mutex problem in zfs_zaccess_aces_check()
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12178
diff
changeset
|
4692 |
} |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4693 |
|
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4694 |
gen = (uint32_t)gen64; |
789 | 4695 |
|
4696 |
size = (zfsvfs->z_parent != zfsvfs) ? LONG_FID_LEN : SHORT_FID_LEN; |
|
4697 |
if (fidp->fid_len < size) { |
|
4698 |
fidp->fid_len = size; |
|
1512 | 4699 |
ZFS_EXIT(zfsvfs); |
789 | 4700 |
return (ENOSPC); |
4701 |
} |
|
4702 |
||
4703 |
zfid = (zfid_short_t *)fidp; |
|
4704 |
||
4705 |
zfid->zf_len = size; |
|
4706 |
||
4707 |
for (i = 0; i < sizeof (zfid->zf_object); i++) |
|
4708 |
zfid->zf_object[i] = (uint8_t)(object >> (8 * i)); |
|
4709 |
||
4710 |
/* Must have a non-zero generation number to distinguish from .zfs */ |
|
4711 |
if (gen == 0) |
|
4712 |
gen = 1; |
|
4713 |
for (i = 0; i < sizeof (zfid->zf_gen); i++) |
|
4714 |
zfid->zf_gen[i] = (uint8_t)(gen >> (8 * i)); |
|
4715 |
||
4716 |
if (size == LONG_FID_LEN) { |
|
4717 |
uint64_t objsetid = dmu_objset_id(zfsvfs->z_os); |
|
4718 |
zfid_long_t *zlfid; |
|
4719 |
||
4720 |
zlfid = (zfid_long_t *)fidp; |
|
4721 |
||
4722 |
for (i = 0; i < sizeof (zlfid->zf_setid); i++) |
|
4723 |
zlfid->zf_setid[i] = (uint8_t)(objsetid >> (8 * i)); |
|
4724 |
||
4725 |
/* XXX - this should be the generation number for the objset */ |
|
4726 |
for (i = 0; i < sizeof (zlfid->zf_setgen); i++) |
|
4727 |
zlfid->zf_setgen[i] = 0; |
|
4728 |
} |
|
4729 |
||
4730 |
ZFS_EXIT(zfsvfs); |
|
4731 |
return (0); |
|
4732 |
} |
|
4733 |
||
4734 |
static int |
|
5331 | 4735 |
zfs_pathconf(vnode_t *vp, int cmd, ulong_t *valp, cred_t *cr, |
4736 |
caller_context_t *ct) |
|
789 | 4737 |
{ |
4738 |
znode_t *zp, *xzp; |
|
4739 |
zfsvfs_t *zfsvfs; |
|
4740 |
zfs_dirlock_t *dl; |
|
4741 |
int error; |
|
4742 |
||
4743 |
switch (cmd) { |
|
4744 |
case _PC_LINK_MAX: |
|
4745 |
*valp = ULONG_MAX; |
|
4746 |
return (0); |
|
4747 |
||
4748 |
case _PC_FILESIZEBITS: |
|
4749 |
*valp = 64; |
|
4750 |
return (0); |
|
4751 |
||
4752 |
case _PC_XATTR_EXISTS: |
|
4753 |
zp = VTOZ(vp); |
|
4754 |
zfsvfs = zp->z_zfsvfs; |
|
5367 | 4755 |
ZFS_ENTER(zfsvfs); |
4756 |
ZFS_VERIFY_ZP(zp); |
|
789 | 4757 |
*valp = 0; |
4758 |
error = zfs_dirent_lock(&dl, zp, "", &xzp, |
|
5331 | 4759 |
ZXATTR | ZEXISTS | ZSHARED, NULL, NULL); |
789 | 4760 |
if (error == 0) { |
4761 |
zfs_dirent_unlock(dl); |
|
4762 |
if (!zfs_dirempty(xzp)) |
|
4763 |
*valp = 1; |
|
4764 |
VN_RELE(ZTOV(xzp)); |
|
4765 |
} else if (error == ENOENT) { |
|
4766 |
/* |
|
4767 |
* If there aren't extended attributes, it's the |
|
4768 |
* same as having zero of them. |
|
4769 |
*/ |
|
4770 |
error = 0; |
|
4771 |
} |
|
4772 |
ZFS_EXIT(zfsvfs); |
|
4773 |
return (error); |
|
4774 |
||
5331 | 4775 |
case _PC_SATTR_ENABLED: |
4776 |
case _PC_SATTR_EXISTS: |
|
7757
bf4a45ecb669
PSARC/2008/588 VFSFT_SYSATTR_VIEWS
Janice Chang <Janice.Chang@Sun.COM>
parents:
7315
diff
changeset
|
4777 |
*valp = vfs_has_feature(vp->v_vfsp, VFSFT_SYSATTR_VIEWS) && |
5331 | 4778 |
(vp->v_type == VREG || vp->v_type == VDIR); |
4779 |
return (0); |
|
4780 |
||
9749
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
4781 |
case _PC_ACCESS_FILTERING: |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
4782 |
*valp = vfs_has_feature(vp->v_vfsp, VFSFT_ACCESS_FILTER) && |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
4783 |
vp->v_type == VDIR; |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
4784 |
return (0); |
105f407a2680
PSARC 2009/246 ZFS support for Access Based Enumeration
Tim Haley <Tim.Haley@Sun.COM>
parents:
9512
diff
changeset
|
4785 |
|
789 | 4786 |
case _PC_ACL_ENABLED: |
4787 |
*valp = _ACL_ACE_ENABLED; |
|
4788 |
return (0); |
|
4789 |
||
4790 |
case _PC_MIN_HOLE_SIZE: |
|
4791 |
*valp = (ulong_t)SPA_MINBLOCKSIZE; |
|
4792 |
return (0); |
|
4793 |
||
10440
ba48e0ae8d55
PSARC 2009/453 futimens, utimensat
Roger A. Faulkner <Roger.Faulkner@Sun.COM>
parents:
10369
diff
changeset
|
4794 |
case _PC_TIMESTAMP_RESOLUTION: |
ba48e0ae8d55
PSARC 2009/453 futimens, utimensat
Roger A. Faulkner <Roger.Faulkner@Sun.COM>
parents:
10369
diff
changeset
|
4795 |
/* nanosecond timestamp resolution */ |
ba48e0ae8d55
PSARC 2009/453 futimens, utimensat
Roger A. Faulkner <Roger.Faulkner@Sun.COM>
parents:
10369
diff
changeset
|
4796 |
*valp = 1L; |
ba48e0ae8d55
PSARC 2009/453 futimens, utimensat
Roger A. Faulkner <Roger.Faulkner@Sun.COM>
parents:
10369
diff
changeset
|
4797 |
return (0); |
ba48e0ae8d55
PSARC 2009/453 futimens, utimensat
Roger A. Faulkner <Roger.Faulkner@Sun.COM>
parents:
10369
diff
changeset
|
4798 |
|
789 | 4799 |
default: |
5331 | 4800 |
return (fs_pathconf(vp, cmd, valp, cr, ct)); |
789 | 4801 |
} |
4802 |
} |
|
4803 |
||
4804 |
/*ARGSUSED*/ |
|
4805 |
static int |
|
5331 | 4806 |
zfs_getsecattr(vnode_t *vp, vsecattr_t *vsecp, int flag, cred_t *cr, |
4807 |
caller_context_t *ct) |
|
789 | 4808 |
{ |
4809 |
znode_t *zp = VTOZ(vp); |
|
4810 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4811 |
int error; |
|
5331 | 4812 |
boolean_t skipaclchk = (flag & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; |
789 | 4813 |
|
5367 | 4814 |
ZFS_ENTER(zfsvfs); |
4815 |
ZFS_VERIFY_ZP(zp); |
|
5331 | 4816 |
error = zfs_getacl(zp, vsecp, skipaclchk, cr); |
789 | 4817 |
ZFS_EXIT(zfsvfs); |
4818 |
||
4819 |
return (error); |
|
4820 |
} |
|
4821 |
||
4822 |
/*ARGSUSED*/ |
|
4823 |
static int |
|
5331 | 4824 |
zfs_setsecattr(vnode_t *vp, vsecattr_t *vsecp, int flag, cred_t *cr, |
4825 |
caller_context_t *ct) |
|
789 | 4826 |
{ |
4827 |
znode_t *zp = VTOZ(vp); |
|
4828 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
|
4829 |
int error; |
|
5331 | 4830 |
boolean_t skipaclchk = (flag & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; |
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4831 |
zilog_t *zilog = zfsvfs->z_log; |
789 | 4832 |
|
5367 | 4833 |
ZFS_ENTER(zfsvfs); |
4834 |
ZFS_VERIFY_ZP(zp); |
|
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4835 |
|
5331 | 4836 |
error = zfs_setacl(zp, vsecp, skipaclchk, cr); |
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4837 |
|
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4838 |
if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4839 |
zil_commit(zilog, UINT64_MAX, 0); |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12285
diff
changeset
|
4840 |
|
789 | 4841 |
ZFS_EXIT(zfsvfs); |
4842 |
return (error); |
|
4843 |
} |
|
4844 |
||
4845 |
/* |
|
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4846 |
* Tunable, both must be a power of 2. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4847 |
* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4848 |
* zcr_blksz_min: the smallest read we may consider to loan out an arcbuf |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4849 |
* zcr_blksz_max: if set to less than the file block size, allow loaning out of |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4850 |
* an arcbuf for a partial block read |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4851 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4852 |
int zcr_blksz_min = (1 << 10); /* 1K */ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4853 |
int zcr_blksz_max = (1 << 17); /* 128K */ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4854 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4855 |
/*ARGSUSED*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4856 |
static int |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4857 |
zfs_reqzcbuf(vnode_t *vp, enum uio_rw ioflag, xuio_t *xuio, cred_t *cr, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4858 |
caller_context_t *ct) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4859 |
{ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4860 |
znode_t *zp = VTOZ(vp); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4861 |
zfsvfs_t *zfsvfs = zp->z_zfsvfs; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4862 |
int max_blksz = zfsvfs->z_max_blksz; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4863 |
uio_t *uio = &xuio->xu_uio; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4864 |
ssize_t size = uio->uio_resid; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4865 |
offset_t offset = uio->uio_loffset; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4866 |
int blksz; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4867 |
int fullblk, i; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4868 |
arc_buf_t *abuf; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4869 |
ssize_t maxsize; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4870 |
int preamble, postamble; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4871 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4872 |
if (xuio->xu_type != UIOTYPE_ZEROCOPY) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4873 |
return (EINVAL); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4874 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4875 |
ZFS_ENTER(zfsvfs); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4876 |
ZFS_VERIFY_ZP(zp); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4877 |
switch (ioflag) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4878 |
case UIO_WRITE: |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4879 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4880 |
* Loan out an arc_buf for write if write size is bigger than |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4881 |
* max_blksz, and the file's block size is also max_blksz. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4882 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4883 |
blksz = max_blksz; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4884 |
if (size < blksz || zp->z_blksz != blksz) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4885 |
ZFS_EXIT(zfsvfs); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4886 |
return (EINVAL); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4887 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4888 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4889 |
* Caller requests buffers for write before knowing where the |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4890 |
* write offset might be (e.g. NFS TCP write). |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4891 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4892 |
if (offset == -1) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4893 |
preamble = 0; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4894 |
} else { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4895 |
preamble = P2PHASE(offset, blksz); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4896 |
if (preamble) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4897 |
preamble = blksz - preamble; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4898 |
size -= preamble; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4899 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4900 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4901 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4902 |
postamble = P2PHASE(size, blksz); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4903 |
size -= postamble; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4904 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4905 |
fullblk = size / blksz; |
11576
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
4906 |
(void) dmu_xuio_init(xuio, |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4907 |
(preamble != 0) + fullblk + (postamble != 0)); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4908 |
DTRACE_PROBE3(zfs_reqzcbuf_align, int, preamble, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4909 |
int, postamble, int, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4910 |
(preamble != 0) + fullblk + (postamble != 0)); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4911 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4912 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4913 |
* Have to fix iov base/len for partial buffers. They |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4914 |
* currently represent full arc_buf's. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4915 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4916 |
if (preamble) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4917 |
/* data begins in the middle of the arc_buf */ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4918 |
abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4919 |
blksz); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4920 |
ASSERT(abuf); |
11576
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
4921 |
(void) dmu_xuio_add(xuio, abuf, |
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
4922 |
blksz - preamble, preamble); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4923 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4924 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4925 |
for (i = 0; i < fullblk; i++) { |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4926 |
abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4927 |
blksz); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4928 |
ASSERT(abuf); |
11576
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
4929 |
(void) dmu_xuio_add(xuio, abuf, 0, blksz); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4930 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4931 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4932 |
if (postamble) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4933 |
/* data ends in the middle of the arc_buf */ |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4934 |
abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4935 |
blksz); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4936 |
ASSERT(abuf); |
11576
b23c42c0c9d6
6893174 avs and other sources are not ss12u1 lint clean
Surya Prakki <Surya.Prakki@Sun.COM>
parents:
11539
diff
changeset
|
4937 |
(void) dmu_xuio_add(xuio, abuf, 0, postamble); |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4938 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4939 |
break; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4940 |
case UIO_READ: |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4941 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4942 |
* Loan out an arc_buf for read if the read size is larger than |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4943 |
* the current file block size. Block alignment is not |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4944 |
* considered. Partial arc_buf will be loaned out for read. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4945 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4946 |
blksz = zp->z_blksz; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4947 |
if (blksz < zcr_blksz_min) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4948 |
blksz = zcr_blksz_min; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4949 |
if (blksz > zcr_blksz_max) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4950 |
blksz = zcr_blksz_max; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4951 |
/* avoid potential complexity of dealing with it */ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4952 |
if (blksz > max_blksz) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4953 |
ZFS_EXIT(zfsvfs); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4954 |
return (EINVAL); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4955 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4956 |
|
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11576
diff
changeset
|
4957 |
maxsize = zp->z_size - uio->uio_loffset; |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4958 |
if (size > maxsize) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4959 |
size = maxsize; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4960 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4961 |
if (size < blksz || vn_has_cached_data(vp)) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4962 |
ZFS_EXIT(zfsvfs); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4963 |
return (EINVAL); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4964 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4965 |
break; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4966 |
default: |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4967 |
ZFS_EXIT(zfsvfs); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4968 |
return (EINVAL); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4969 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4970 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4971 |
uio->uio_extflg = UIO_XUIO; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4972 |
XUIO_XUZC_RW(xuio) = ioflag; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4973 |
ZFS_EXIT(zfsvfs); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4974 |
return (0); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4975 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4976 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4977 |
/*ARGSUSED*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4978 |
static int |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4979 |
zfs_retzcbuf(vnode_t *vp, xuio_t *xuio, cred_t *cr, caller_context_t *ct) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4980 |
{ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4981 |
int i; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4982 |
arc_buf_t *abuf; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4983 |
int ioflag = XUIO_XUZC_RW(xuio); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4984 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4985 |
ASSERT(xuio->xu_type == UIOTYPE_ZEROCOPY); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4986 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4987 |
i = dmu_xuio_cnt(xuio); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4988 |
while (i-- > 0) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4989 |
abuf = dmu_xuio_arcbuf(xuio, i); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4990 |
/* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4991 |
* if abuf == NULL, it must be a write buffer |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4992 |
* that has been returned in zfs_write(). |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4993 |
*/ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4994 |
if (abuf) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4995 |
dmu_return_arcbuf(abuf); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4996 |
ASSERT(abuf || ioflag == UIO_WRITE); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4997 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4998 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
4999 |
dmu_xuio_fini(xuio); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
5000 |
return (0); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
5001 |
} |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
5002 |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
5003 |
/* |
789 | 5004 |
* Predeclare these here so that the compiler assumes that |
5005 |
* this is an "old style" function declaration that does |
|
5006 |
* not include arguments => we won't get type mismatch errors |
|
5007 |
* in the initializations that follow. |
|
5008 |
*/ |
|
5009 |
static int zfs_inval(); |
|
5010 |
static int zfs_isdir(); |
|
5011 |
||
5012 |
static int |
|
5013 |
zfs_inval() |
|
5014 |
{ |
|
5015 |
return (EINVAL); |
|
5016 |
} |
|
5017 |
||
5018 |
static int |
|
5019 |
zfs_isdir() |
|
5020 |
{ |
|
5021 |
return (EISDIR); |
|
5022 |
} |
|
5023 |
/* |
|
5024 |
* Directory vnode operations template |
|
5025 |
*/ |
|
5026 |
vnodeops_t *zfs_dvnodeops; |
|
5027 |
const fs_operation_def_t zfs_dvnodeops_template[] = { |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5028 |
VOPNAME_OPEN, { .vop_open = zfs_open }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5029 |
VOPNAME_CLOSE, { .vop_close = zfs_close }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5030 |
VOPNAME_READ, { .error = zfs_isdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5031 |
VOPNAME_WRITE, { .error = zfs_isdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5032 |
VOPNAME_IOCTL, { .vop_ioctl = zfs_ioctl }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5033 |
VOPNAME_GETATTR, { .vop_getattr = zfs_getattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5034 |
VOPNAME_SETATTR, { .vop_setattr = zfs_setattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5035 |
VOPNAME_ACCESS, { .vop_access = zfs_access }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5036 |
VOPNAME_LOOKUP, { .vop_lookup = zfs_lookup }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5037 |
VOPNAME_CREATE, { .vop_create = zfs_create }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5038 |
VOPNAME_REMOVE, { .vop_remove = zfs_remove }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5039 |
VOPNAME_LINK, { .vop_link = zfs_link }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5040 |
VOPNAME_RENAME, { .vop_rename = zfs_rename }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5041 |
VOPNAME_MKDIR, { .vop_mkdir = zfs_mkdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5042 |
VOPNAME_RMDIR, { .vop_rmdir = zfs_rmdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5043 |
VOPNAME_READDIR, { .vop_readdir = zfs_readdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5044 |
VOPNAME_SYMLINK, { .vop_symlink = zfs_symlink }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5045 |
VOPNAME_FSYNC, { .vop_fsync = zfs_fsync }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5046 |
VOPNAME_INACTIVE, { .vop_inactive = zfs_inactive }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5047 |
VOPNAME_FID, { .vop_fid = zfs_fid }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5048 |
VOPNAME_SEEK, { .vop_seek = zfs_seek }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5049 |
VOPNAME_PATHCONF, { .vop_pathconf = zfs_pathconf }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5050 |
VOPNAME_GETSECATTR, { .vop_getsecattr = zfs_getsecattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5051 |
VOPNAME_SETSECATTR, { .vop_setsecattr = zfs_setsecattr }, |
4863 | 5052 |
VOPNAME_VNEVENT, { .vop_vnevent = fs_vnevent_support }, |
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5053 |
NULL, NULL |
789 | 5054 |
}; |
5055 |
||
5056 |
/* |
|
5057 |
* Regular file vnode operations template |
|
5058 |
*/ |
|
5059 |
vnodeops_t *zfs_fvnodeops; |
|
5060 |
const fs_operation_def_t zfs_fvnodeops_template[] = { |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5061 |
VOPNAME_OPEN, { .vop_open = zfs_open }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5062 |
VOPNAME_CLOSE, { .vop_close = zfs_close }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5063 |
VOPNAME_READ, { .vop_read = zfs_read }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5064 |
VOPNAME_WRITE, { .vop_write = zfs_write }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5065 |
VOPNAME_IOCTL, { .vop_ioctl = zfs_ioctl }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5066 |
VOPNAME_GETATTR, { .vop_getattr = zfs_getattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5067 |
VOPNAME_SETATTR, { .vop_setattr = zfs_setattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5068 |
VOPNAME_ACCESS, { .vop_access = zfs_access }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5069 |
VOPNAME_LOOKUP, { .vop_lookup = zfs_lookup }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5070 |
VOPNAME_RENAME, { .vop_rename = zfs_rename }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5071 |
VOPNAME_FSYNC, { .vop_fsync = zfs_fsync }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5072 |
VOPNAME_INACTIVE, { .vop_inactive = zfs_inactive }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5073 |
VOPNAME_FID, { .vop_fid = zfs_fid }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5074 |
VOPNAME_SEEK, { .vop_seek = zfs_seek }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5075 |
VOPNAME_FRLOCK, { .vop_frlock = zfs_frlock }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5076 |
VOPNAME_SPACE, { .vop_space = zfs_space }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5077 |
VOPNAME_GETPAGE, { .vop_getpage = zfs_getpage }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5078 |
VOPNAME_PUTPAGE, { .vop_putpage = zfs_putpage }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5079 |
VOPNAME_MAP, { .vop_map = zfs_map }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5080 |
VOPNAME_ADDMAP, { .vop_addmap = zfs_addmap }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5081 |
VOPNAME_DELMAP, { .vop_delmap = zfs_delmap }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5082 |
VOPNAME_PATHCONF, { .vop_pathconf = zfs_pathconf }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5083 |
VOPNAME_GETSECATTR, { .vop_getsecattr = zfs_getsecattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5084 |
VOPNAME_SETSECATTR, { .vop_setsecattr = zfs_setsecattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5085 |
VOPNAME_VNEVENT, { .vop_vnevent = fs_vnevent_support }, |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
5086 |
VOPNAME_REQZCBUF, { .vop_reqzcbuf = zfs_reqzcbuf }, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11321
diff
changeset
|
5087 |
VOPNAME_RETZCBUF, { .vop_retzcbuf = zfs_retzcbuf }, |
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5088 |
NULL, NULL |
789 | 5089 |
}; |
5090 |
||
5091 |
/* |
|
5092 |
* Symbolic link vnode operations template |
|
5093 |
*/ |
|
5094 |
vnodeops_t *zfs_symvnodeops; |
|
5095 |
const fs_operation_def_t zfs_symvnodeops_template[] = { |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5096 |
VOPNAME_GETATTR, { .vop_getattr = zfs_getattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5097 |
VOPNAME_SETATTR, { .vop_setattr = zfs_setattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5098 |
VOPNAME_ACCESS, { .vop_access = zfs_access }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5099 |
VOPNAME_RENAME, { .vop_rename = zfs_rename }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5100 |
VOPNAME_READLINK, { .vop_readlink = zfs_readlink }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5101 |
VOPNAME_INACTIVE, { .vop_inactive = zfs_inactive }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5102 |
VOPNAME_FID, { .vop_fid = zfs_fid }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5103 |
VOPNAME_PATHCONF, { .vop_pathconf = zfs_pathconf }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5104 |
VOPNAME_VNEVENT, { .vop_vnevent = fs_vnevent_support }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5105 |
NULL, NULL |
789 | 5106 |
}; |
5107 |
||
5108 |
/* |
|
8845
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5109 |
* special share hidden files vnode operations template |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5110 |
*/ |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5111 |
vnodeops_t *zfs_sharevnodeops; |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5112 |
const fs_operation_def_t zfs_sharevnodeops_template[] = { |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5113 |
VOPNAME_GETATTR, { .vop_getattr = zfs_getattr }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5114 |
VOPNAME_ACCESS, { .vop_access = zfs_access }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5115 |
VOPNAME_INACTIVE, { .vop_inactive = zfs_inactive }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5116 |
VOPNAME_FID, { .vop_fid = zfs_fid }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5117 |
VOPNAME_PATHCONF, { .vop_pathconf = zfs_pathconf }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5118 |
VOPNAME_GETSECATTR, { .vop_getsecattr = zfs_getsecattr }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5119 |
VOPNAME_SETSECATTR, { .vop_setsecattr = zfs_setsecattr }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5120 |
VOPNAME_VNEVENT, { .vop_vnevent = fs_vnevent_support }, |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5121 |
NULL, NULL |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5122 |
}; |
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5123 |
|
91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses
Alan Wright <amw@Sun.COM>
parents:
8681
diff
changeset
|
5124 |
/* |
789 | 5125 |
* Extended attribute directory vnode operations template |
5126 |
* This template is identical to the directory vnodes |
|
5127 |
* operation template except for restricted operations: |
|
5128 |
* VOP_MKDIR() |
|
5129 |
* VOP_SYMLINK() |
|
5130 |
* Note that there are other restrictions embedded in: |
|
5131 |
* zfs_create() - restrict type to VREG |
|
5132 |
* zfs_link() - no links into/out of attribute space |
|
5133 |
* zfs_rename() - no moves into/out of attribute space |
|
5134 |
*/ |
|
5135 |
vnodeops_t *zfs_xdvnodeops; |
|
5136 |
const fs_operation_def_t zfs_xdvnodeops_template[] = { |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5137 |
VOPNAME_OPEN, { .vop_open = zfs_open }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5138 |
VOPNAME_CLOSE, { .vop_close = zfs_close }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5139 |
VOPNAME_IOCTL, { .vop_ioctl = zfs_ioctl }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5140 |
VOPNAME_GETATTR, { .vop_getattr = zfs_getattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5141 |
VOPNAME_SETATTR, { .vop_setattr = zfs_setattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5142 |
VOPNAME_ACCESS, { .vop_access = zfs_access }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5143 |
VOPNAME_LOOKUP, { .vop_lookup = zfs_lookup }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5144 |
VOPNAME_CREATE, { .vop_create = zfs_create }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5145 |
VOPNAME_REMOVE, { .vop_remove = zfs_remove }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5146 |
VOPNAME_LINK, { .vop_link = zfs_link }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5147 |
VOPNAME_RENAME, { .vop_rename = zfs_rename }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5148 |
VOPNAME_MKDIR, { .error = zfs_inval }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5149 |
VOPNAME_RMDIR, { .vop_rmdir = zfs_rmdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5150 |
VOPNAME_READDIR, { .vop_readdir = zfs_readdir }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5151 |
VOPNAME_SYMLINK, { .error = zfs_inval }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5152 |
VOPNAME_FSYNC, { .vop_fsync = zfs_fsync }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5153 |
VOPNAME_INACTIVE, { .vop_inactive = zfs_inactive }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5154 |
VOPNAME_FID, { .vop_fid = zfs_fid }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5155 |
VOPNAME_SEEK, { .vop_seek = zfs_seek }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5156 |
VOPNAME_PATHCONF, { .vop_pathconf = zfs_pathconf }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5157 |
VOPNAME_GETSECATTR, { .vop_getsecattr = zfs_getsecattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5158 |
VOPNAME_SETSECATTR, { .vop_setsecattr = zfs_setsecattr }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5159 |
VOPNAME_VNEVENT, { .vop_vnevent = fs_vnevent_support }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5160 |
NULL, NULL |
789 | 5161 |
}; |
5162 |
||
5163 |
/* |
|
5164 |
* Error vnode operations template |
|
5165 |
*/ |
|
5166 |
vnodeops_t *zfs_evnodeops; |
|
5167 |
const fs_operation_def_t zfs_evnodeops_template[] = { |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5168 |
VOPNAME_INACTIVE, { .vop_inactive = zfs_inactive }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5169 |
VOPNAME_PATHCONF, { .vop_pathconf = zfs_pathconf }, |
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
3897
diff
changeset
|
5170 |
NULL, NULL |
789 | 5171 |
}; |