author | ahrens |
Fri, 10 Mar 2006 16:27:46 -0800 | |
changeset 1596 | 2e2377ccbf85 |
parent 1544 | 938876158511 |
child 1635 | 0ab1193d47cb |
permissions | -rw-r--r-- |
789 | 1 |
/* |
2 |
* 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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1544 | 5 |
* Common Development and Distribution License (the "License"). |
6 |
* You may not use this file except in compliance with the License. |
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789 | 7 |
* |
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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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12 |
* |
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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 |
|
17 |
* 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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1544 | 22 |
* Copyright 2006 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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||
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#ifndef _SYS_ZFS_CONTEXT_H |
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#define _SYS_ZFS_CONTEXT_H |
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#pragma ident "%Z%%M% %I% %E% SMI" |
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||
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define _SYS_MUTEX_H |
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#define _SYS_RWLOCK_H |
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#define _SYS_CONDVAR_H |
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#define _SYS_SYSTM_H |
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#define _SYS_DEBUG_H |
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#define _SYS_T_LOCK_H |
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#define _SYS_VNODE_H |
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#define _SYS_VFS_H |
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#define _SYS_SUNDDI_H |
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#define _SYS_CALLB_H |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <stddef.h> |
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#include <stdarg.h> |
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#include <fcntl.h> |
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#include <unistd.h> |
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#include <errno.h> |
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#include <string.h> |
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#include <strings.h> |
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#include <synch.h> |
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#include <thread.h> |
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#include <assert.h> |
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#include <alloca.h> |
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#include <umem.h> |
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#include <limits.h> |
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#include <atomic.h> |
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#include <dirent.h> |
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#include <time.h> |
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64 |
#include <sys/note.h> |
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#include <sys/types.h> |
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#include <sys/sysmacros.h> |
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#include <sys/bitmap.h> |
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#include <sys/resource.h> |
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#include <sys/byteorder.h> |
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#include <sys/list.h> |
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#include <sys/uio.h> |
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#include <sys/zfs_debug.h> |
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#include <sys/sdt.h> |
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/* |
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* Debugging |
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*/ |
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/* |
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* Note that we are not using the debugging levels. |
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*/ |
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#define CE_CONT 0 /* continuation */ |
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#define CE_NOTE 1 /* notice */ |
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#define CE_WARN 2 /* warning */ |
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#define CE_PANIC 3 /* panic */ |
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#define CE_IGNORE 4 /* print nothing */ |
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/* |
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* ZFS debugging |
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*/ |
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#ifdef ZFS_DEBUG |
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extern void dprintf_setup(int *argc, char **argv); |
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#endif /* ZFS_DEBUG */ |
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96 |
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extern void cmn_err(int, const char *, ...); |
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extern void panic(const char *, ...); |
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extern void vpanic(const char *, __va_list); |
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100 |
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/* This definition is copied from assert.h. */ |
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#if defined(__STDC__) |
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#if __STDC_VERSION__ - 0 >= 199901L |
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#define verify(EX) (void)((EX) || \ |
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(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) |
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#else |
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#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) |
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#endif /* __STDC_VERSION__ - 0 >= 199901L */ |
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#else |
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#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) |
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#endif /* __STDC__ */ |
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#define VERIFY verify |
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#define ASSERT assert |
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extern void __assert(const char *, const char *, int); |
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118 |
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#ifdef lint |
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#define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) |
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#else |
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/* BEGIN CSTYLED */ |
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ |
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const TYPE __left = (TYPE)(LEFT); \ |
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const TYPE __right = (TYPE)(RIGHT); \ |
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if (!(__left OP __right)) { \ |
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char *__buf = alloca(256); \ |
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128 |
(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ |
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#LEFT, #OP, #RIGHT, \ |
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(u_longlong_t)__left, #OP, (u_longlong_t)__right); \ |
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__assert(__buf, __FILE__, __LINE__); \ |
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132 |
} \ |
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_NOTE(CONSTCOND) } while (0) |
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/* END CSTYLED */ |
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#endif /* lint */ |
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136 |
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137 |
#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) |
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138 |
#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) |
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139 |
#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) |
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140 |
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141 |
#ifdef NDEBUG |
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142 |
#define ASSERT3S(x, y, z) ((void)0) |
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143 |
#define ASSERT3U(x, y, z) ((void)0) |
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144 |
#define ASSERT3P(x, y, z) ((void)0) |
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145 |
#else |
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146 |
#define ASSERT3S(x, y, z) VERIFY3S(x, y, z) |
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147 |
#define ASSERT3U(x, y, z) VERIFY3U(x, y, z) |
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148 |
#define ASSERT3P(x, y, z) VERIFY3P(x, y, z) |
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149 |
#endif |
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150 |
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151 |
/* |
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152 |
* Dtrace SDT probes have different signatures in userland than they do in |
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153 |
* kernel. If they're being used in kernel code, re-define them out of |
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154 |
* existence for their counterparts in libzpool. |
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155 |
*/ |
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156 |
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157 |
#ifdef DTRACE_PROBE1 |
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158 |
#undef DTRACE_PROBE1 |
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159 |
#define DTRACE_PROBE1(a, b, c) ((void)0) |
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160 |
#endif /* DTRACE_PROBE1 */ |
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161 |
||
162 |
#ifdef DTRACE_PROBE2 |
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163 |
#undef DTRACE_PROBE2 |
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164 |
#define DTRACE_PROBE2(a, b, c, d, e) ((void)0) |
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165 |
#endif /* DTRACE_PROBE2 */ |
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166 |
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1596
2e2377ccbf85
6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr
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#ifdef DTRACE_PROBE3 |
2e2377ccbf85
6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr
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168 |
#undef DTRACE_PROBE3 |
2e2377ccbf85
6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr
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#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) |
2e2377ccbf85
6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr
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170 |
#endif /* DTRACE_PROBE3 */ |
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6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr
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789 | 172 |
/* |
173 |
* Threads |
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174 |
*/ |
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175 |
#define curthread ((void *)(uintptr_t)thr_self()) |
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176 |
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177 |
typedef struct kthread kthread_t; |
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178 |
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179 |
#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ |
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180 |
zk_thread_create(func, arg) |
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181 |
#define thread_exit() thr_exit(0) |
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182 |
||
183 |
extern kthread_t *zk_thread_create(void (*func)(), void *arg); |
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184 |
||
185 |
#define issig(why) (FALSE) |
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186 |
#define ISSIG(thr, why) (FALSE) |
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187 |
||
188 |
/* |
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189 |
* Mutexes |
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190 |
*/ |
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191 |
typedef struct kmutex { |
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192 |
void *m_owner; |
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193 |
mutex_t m_lock; |
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194 |
} kmutex_t; |
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195 |
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196 |
#define MUTEX_DEFAULT USYNC_THREAD |
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197 |
#undef MUTEX_HELD |
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198 |
#define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) |
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199 |
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200 |
/* |
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201 |
* Argh -- we have to get cheesy here because the kernel and userland |
|
202 |
* have different signatures for the same routine. |
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203 |
*/ |
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204 |
extern int _mutex_init(mutex_t *mp, int type, void *arg); |
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205 |
extern int _mutex_destroy(mutex_t *mp); |
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206 |
||
207 |
#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) |
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208 |
#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) |
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209 |
||
210 |
extern void zmutex_init(kmutex_t *mp); |
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211 |
extern void zmutex_destroy(kmutex_t *mp); |
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212 |
extern void mutex_enter(kmutex_t *mp); |
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213 |
extern void mutex_exit(kmutex_t *mp); |
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214 |
extern int mutex_tryenter(kmutex_t *mp); |
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215 |
extern void *mutex_owner(kmutex_t *mp); |
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216 |
||
217 |
/* |
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218 |
* RW locks |
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219 |
*/ |
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220 |
typedef struct krwlock { |
|
221 |
void *rw_owner; |
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222 |
rwlock_t rw_lock; |
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223 |
} krwlock_t; |
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224 |
||
225 |
typedef int krw_t; |
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226 |
||
227 |
#define RW_READER 0 |
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228 |
#define RW_WRITER 1 |
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229 |
#define RW_DEFAULT USYNC_THREAD |
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230 |
||
231 |
#undef RW_READ_HELD |
|
232 |
#define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) |
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233 |
||
234 |
#undef RW_WRITE_HELD |
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235 |
#define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) |
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236 |
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237 |
extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); |
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238 |
extern void rw_destroy(krwlock_t *rwlp); |
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239 |
extern void rw_enter(krwlock_t *rwlp, krw_t rw); |
|
240 |
extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); |
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241 |
extern int rw_tryupgrade(krwlock_t *rwlp); |
|
242 |
extern void rw_exit(krwlock_t *rwlp); |
|
243 |
#define rw_downgrade(rwlp) do { } while (0) |
|
244 |
||
245 |
/* |
|
246 |
* Condition variables |
|
247 |
*/ |
|
248 |
typedef cond_t kcondvar_t; |
|
249 |
||
250 |
#define CV_DEFAULT USYNC_THREAD |
|
251 |
||
252 |
extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); |
|
253 |
extern void cv_destroy(kcondvar_t *cv); |
|
254 |
extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); |
|
255 |
extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); |
|
256 |
extern void cv_signal(kcondvar_t *cv); |
|
257 |
extern void cv_broadcast(kcondvar_t *cv); |
|
258 |
||
259 |
/* |
|
260 |
* Kernel memory |
|
261 |
*/ |
|
262 |
#define KM_SLEEP UMEM_NOFAIL |
|
263 |
#define KM_NOSLEEP UMEM_DEFAULT |
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849
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
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264 |
#define KMC_NODEBUG UMC_NODEBUG |
789 | 265 |
#define kmem_alloc(_s, _f) umem_alloc(_s, _f) |
266 |
#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) |
|
267 |
#define kmem_free(_b, _s) umem_free(_b, _s) |
|
268 |
#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ |
|
269 |
umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) |
|
270 |
#define kmem_cache_destroy(_c) umem_cache_destroy(_c) |
|
271 |
#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) |
|
272 |
#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) |
|
273 |
#define kmem_debugging() 0 |
|
274 |
#define kmem_cache_reap_now(c) |
|
275 |
||
276 |
typedef umem_cache_t kmem_cache_t; |
|
277 |
||
278 |
/* |
|
279 |
* Task queues |
|
280 |
*/ |
|
281 |
typedef struct taskq taskq_t; |
|
282 |
typedef uintptr_t taskqid_t; |
|
283 |
typedef void (task_func_t)(void *); |
|
284 |
||
285 |
#define TASKQ_PREPOPULATE 0x0001 |
|
286 |
#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ |
|
287 |
#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ |
|
288 |
||
289 |
#define TQ_SLEEP KM_SLEEP /* Can block for memory */ |
|
290 |
#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ |
|
291 |
#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ |
|
292 |
||
293 |
extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); |
|
294 |
extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); |
|
295 |
extern void taskq_destroy(taskq_t *); |
|
296 |
extern void taskq_wait(taskq_t *); |
|
297 |
extern int taskq_member(taskq_t *, void *); |
|
298 |
||
299 |
/* |
|
300 |
* vnodes |
|
301 |
*/ |
|
302 |
typedef struct vnode { |
|
303 |
uint64_t v_size; |
|
304 |
int v_fd; |
|
305 |
char *v_path; |
|
306 |
} vnode_t; |
|
307 |
||
308 |
typedef struct vattr { |
|
309 |
uint_t va_mask; /* bit-mask of attributes */ |
|
310 |
u_offset_t va_size; /* file size in bytes */ |
|
311 |
} vattr_t; |
|
312 |
||
313 |
#define AT_TYPE 0x0001 |
|
314 |
#define AT_MODE 0x0002 |
|
315 |
#define AT_UID 0x0004 |
|
316 |
#define AT_GID 0x0008 |
|
317 |
#define AT_FSID 0x0010 |
|
318 |
#define AT_NODEID 0x0020 |
|
319 |
#define AT_NLINK 0x0040 |
|
320 |
#define AT_SIZE 0x0080 |
|
321 |
#define AT_ATIME 0x0100 |
|
322 |
#define AT_MTIME 0x0200 |
|
323 |
#define AT_CTIME 0x0400 |
|
324 |
#define AT_RDEV 0x0800 |
|
325 |
#define AT_BLKSIZE 0x1000 |
|
326 |
#define AT_NBLOCKS 0x2000 |
|
327 |
#define AT_SEQ 0x8000 |
|
328 |
||
329 |
#define CRCREAT 0 |
|
330 |
||
331 |
#define VOP_CLOSE(vp, f, c, o, cr) 0 |
|
332 |
#define VOP_PUTPAGE(vp, of, sz, fl, cr) 0 |
|
333 |
#define VOP_GETATTR(vp, vap, fl, cr) ((vap)->va_size = (vp)->v_size, 0) |
|
334 |
||
335 |
#define VOP_FSYNC(vp, f, cr) fsync((vp)->v_fd) |
|
336 |
||
337 |
#define VN_RELE(vp) vn_close(vp) |
|
338 |
||
339 |
extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, |
|
340 |
int x2, int x3); |
|
341 |
extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, |
|
342 |
int x2, int x3, vnode_t *vp); |
|
343 |
extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, |
|
344 |
offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); |
|
345 |
extern void vn_close(vnode_t *vp); |
|
346 |
||
347 |
#define vn_remove(path, x1, x2) remove(path) |
|
348 |
#define vn_rename(from, to, seg) rename((from), (to)) |
|
349 |
||
350 |
extern vnode_t *rootdir; |
|
351 |
||
352 |
#include <sys/file.h> /* for FREAD, FWRITE, etc */ |
|
353 |
||
354 |
/* |
|
355 |
* Random stuff |
|
356 |
*/ |
|
357 |
#define lbolt (gethrtime() >> 23) |
|
358 |
#define lbolt64 (gethrtime() >> 23) |
|
359 |
#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ |
|
360 |
||
361 |
extern void delay(clock_t ticks); |
|
362 |
||
363 |
#define gethrestime_sec() time(NULL) |
|
364 |
||
365 |
#define max_ncpus 64 |
|
366 |
||
367 |
#define minclsyspri 60 |
|
368 |
#define maxclsyspri 99 |
|
369 |
||
370 |
#define CPU_SEQID (thr_self() & (max_ncpus - 1)) |
|
371 |
||
372 |
#define kcred NULL |
|
373 |
#define CRED() NULL |
|
374 |
||
375 |
extern uint64_t physmem; |
|
376 |
||
377 |
extern int highbit(ulong_t i); |
|
378 |
extern int random_get_bytes(uint8_t *ptr, size_t len); |
|
379 |
extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); |
|
380 |
||
381 |
extern void kernel_init(int); |
|
382 |
extern void kernel_fini(void); |
|
383 |
||
384 |
struct spa; |
|
385 |
extern void nicenum(uint64_t num, char *buf); |
|
386 |
extern void show_pool_stats(struct spa *); |
|
387 |
||
388 |
typedef struct callb_cpr { |
|
389 |
kmutex_t *cc_lockp; |
|
390 |
} callb_cpr_t; |
|
391 |
||
392 |
#define CALLB_CPR_INIT(cp, lockp, func, name) { \ |
|
393 |
(cp)->cc_lockp = lockp; \ |
|
394 |
} |
|
395 |
||
396 |
#define CALLB_CPR_SAFE_BEGIN(cp) { \ |
|
397 |
ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
|
398 |
} |
|
399 |
||
400 |
#define CALLB_CPR_SAFE_END(cp, lockp) { \ |
|
401 |
ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
|
402 |
} |
|
403 |
||
404 |
#define CALLB_CPR_EXIT(cp) { \ |
|
405 |
ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
|
406 |
mutex_exit((cp)->cc_lockp); \ |
|
407 |
} |
|
408 |
||
409 |
#define zone_dataset_visible(x, y) (1) |
|
410 |
#define INGLOBALZONE(z) (1) |
|
411 |
||
412 |
#ifdef __cplusplus |
|
413 |
} |
|
414 |
#endif |
|
415 |
||
1544 | 416 |
/* ZFS Boot Related stuff. */ |
417 |
||
418 |
struct _buf { |
|
419 |
intptr_t _fd; |
|
420 |
}; |
|
421 |
||
422 |
struct bootstat { |
|
423 |
uint64_t st_size; |
|
424 |
}; |
|
425 |
||
426 |
extern struct _buf *kobj_open_file(char *name); |
|
427 |
extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, |
|
428 |
unsigned off); |
|
429 |
extern void kobj_close_file(struct _buf *file); |
|
430 |
extern int kobj_fstat(intptr_t, struct bootstat *); |
|
431 |
||
432 |
||
789 | 433 |
#endif /* _SYS_ZFS_CONTEXT_H */ |