PSARC 2006/077 zpool clear PSARC 2006/139 FMA for ZFS 6284889 arc should replace the znode cache 6333006 DMU & DSL should not panic upon I/O error 6333092 concurrent reads to a file not scaling with number of readers 6338081 ZFS/FMA phase 1 6338386 need persistent error log 6341326 i/o error causes arc buf hash table corruption 6341639 zfs backup/restore should compute/verify checksum of backup stream 6348002 out of space due to changing properties 6354724 inaccurate error message from zfs restore 6354872 dmu_sync() blows predictive accounting 6355416 zpool scrubbing consumes all memory, system hung 6363995 df should only load libzfs when it encounters a ZFS filesystem 6366320 zfs backup/restore doesn't like signals 6368892 mount -m support needed for legacy mounts 6368902 boot archive fstat support needed for ZFS Mountroot 6369424 BFU complains when bfu'ing a ZFS root filesystem 6374062 mountroot support needed for ZFS 6376356 dirtying dbuf obj=43 lvl=0 blkid=0 but not tx_held 6378391 unused members of dmu_objset_stats_t 6378392 clean up zfs_cmd_t structure 6378685 buf_init should allocate its hash table more carefully 6378976 ziltest should be a first class citizen 6381086 zdb segfaults if there is a spa deferred-free bplist 6381203 deadlock due to i/o while assigning (tc_lock held) 6381209 freed space is not immediately available 6381344 'zpool clear' 6381345 FAULTED devices should really be UNAVAIL 6381346 import should mark devices as persistently unavailable 6383272 recursive mutex_enter() during log replay with zfs root 6386326 origin property is not displayed 6386354 libzfs does too much in its _init section, calls exit(1) 6386624 zpool should not complain about non-existent devices from libdiskmgt 6386910 spa needs to be i/o error hardened 6387735 need a mechanism to inject faults into ZFS 6387736 internal ZFS utilities should be placed in an ON-private package 6389928 libzfs should ship a lint library 6390609 malformed vdev config panics on zpool_create() 6390677 version number checking makes upgrades challenging 6390713 ztest hangs in zil_suspend() 6391873 metadata compression should be turned back on 6392113 ztest sometimes reports leaked blocks because ZIL isn't resilvered 6393004 minor memory leak in unique_insert()

     1

/*

     2

 * CDDL HEADER START

     3

 *

     4

 * The contents of this file are subject to the terms of the

     5

 * Common Development and Distribution License (the "License").

     6

 * You may not use this file except in compliance with the License.

     7

 *

     8

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

     9

 * or http://www.opensolaris.org/os/licensing.

    10

 * See the License for the specific language governing permissions

    11

 * and limitations under the License.

    12

 *

    13

 * When distributing Covered Code, include this CDDL HEADER in each

    14

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

    15

 * If applicable, add the following below this CDDL HEADER, with the

    16

 * fields enclosed by brackets "[]" replaced with your own identifying

    17

 * information: Portions Copyright [yyyy] [name of copyright owner]

    18

 *

    19

 * CDDL HEADER END

    20

 */

    21

/*

    22

 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.

    23

 * Use is subject to license terms.

    24

 */

    25

    26

#pragma ident	"%Z%%M%	%I%	%E% SMI"

    27

    28

#include <sys/zfs_context.h>

    29

#include <sys/uberblock_impl.h>

    30

#include <sys/vdev_impl.h>

    31

    32

int

    33

uberblock_verify(uberblock_t *ub)

    34

{

    35

	if (ub->ub_magic == BSWAP_64((uint64_t)UBERBLOCK_MAGIC))

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		byteswap_uint64_array(ub, sizeof (uberblock_t));

    37

    38

	if (ub->ub_magic != UBERBLOCK_MAGIC)

    39

		return (EINVAL);

    40

    41

	return (0);

    42

}

    43

    44

/*

    45

 * Update the uberblock and return a boolean value indicating whether

    46

 * anything changed in this transaction group.

    47

 */

    48

int

    49

uberblock_update(uberblock_t *ub, vdev_t *rvd, uint64_t txg)

    50

{

    51

	ASSERT(ub->ub_txg < txg);

    52

    53

	ub->ub_magic = UBERBLOCK_MAGIC;

    54

	ub->ub_version = UBERBLOCK_VERSION;

    55

	ub->ub_txg = txg;

    56

	ub->ub_guid_sum = rvd->vdev_guid_sum;

    57

	ub->ub_timestamp = gethrestime_sec();

    58

    59

	return (ub->ub_rootbp.blk_birth == txg);

    60

}