1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5*ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6*ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22*ea8dc4b6Seschrock * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_ZFS_CONTEXT_H 27fa9e4066Sahrens #define _SYS_ZFS_CONTEXT_H 28fa9e4066Sahrens 29fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 30fa9e4066Sahrens 31fa9e4066Sahrens #ifdef __cplusplus 32fa9e4066Sahrens extern "C" { 33fa9e4066Sahrens #endif 34fa9e4066Sahrens 35fa9e4066Sahrens #define _SYS_MUTEX_H 36fa9e4066Sahrens #define _SYS_RWLOCK_H 37fa9e4066Sahrens #define _SYS_CONDVAR_H 38fa9e4066Sahrens #define _SYS_SYSTM_H 39fa9e4066Sahrens #define _SYS_DEBUG_H 40fa9e4066Sahrens #define _SYS_T_LOCK_H 41fa9e4066Sahrens #define _SYS_VNODE_H 42fa9e4066Sahrens #define _SYS_VFS_H 43fa9e4066Sahrens #define _SYS_SUNDDI_H 44fa9e4066Sahrens #define _SYS_CALLB_H 45fa9e4066Sahrens 46fa9e4066Sahrens #include <stdio.h> 47fa9e4066Sahrens #include <stdlib.h> 48fa9e4066Sahrens #include <stddef.h> 49fa9e4066Sahrens #include <stdarg.h> 50fa9e4066Sahrens #include <fcntl.h> 51fa9e4066Sahrens #include <unistd.h> 52fa9e4066Sahrens #include <errno.h> 53fa9e4066Sahrens #include <string.h> 54fa9e4066Sahrens #include <strings.h> 55fa9e4066Sahrens #include <synch.h> 56fa9e4066Sahrens #include <thread.h> 57fa9e4066Sahrens #include <assert.h> 58fa9e4066Sahrens #include <alloca.h> 59fa9e4066Sahrens #include <umem.h> 60fa9e4066Sahrens #include <limits.h> 61fa9e4066Sahrens #include <atomic.h> 62fa9e4066Sahrens #include <dirent.h> 63fa9e4066Sahrens #include <time.h> 64fa9e4066Sahrens #include <sys/note.h> 65fa9e4066Sahrens #include <sys/types.h> 66fa9e4066Sahrens #include <sys/sysmacros.h> 67fa9e4066Sahrens #include <sys/bitmap.h> 68fa9e4066Sahrens #include <sys/resource.h> 69fa9e4066Sahrens #include <sys/byteorder.h> 70fa9e4066Sahrens #include <sys/list.h> 71fa9e4066Sahrens #include <sys/uio.h> 72fa9e4066Sahrens #include <sys/zfs_debug.h> 73fa9e4066Sahrens #include <sys/sdt.h> 74fa9e4066Sahrens 75fa9e4066Sahrens /* 76fa9e4066Sahrens * Debugging 77fa9e4066Sahrens */ 78fa9e4066Sahrens 79fa9e4066Sahrens /* 80fa9e4066Sahrens * Note that we are not using the debugging levels. 81fa9e4066Sahrens */ 82fa9e4066Sahrens 83fa9e4066Sahrens #define CE_CONT 0 /* continuation */ 84fa9e4066Sahrens #define CE_NOTE 1 /* notice */ 85fa9e4066Sahrens #define CE_WARN 2 /* warning */ 86fa9e4066Sahrens #define CE_PANIC 3 /* panic */ 87fa9e4066Sahrens #define CE_IGNORE 4 /* print nothing */ 88fa9e4066Sahrens 89fa9e4066Sahrens /* 90fa9e4066Sahrens * ZFS debugging 91fa9e4066Sahrens */ 92fa9e4066Sahrens 93fa9e4066Sahrens #ifdef ZFS_DEBUG 94fa9e4066Sahrens extern void dprintf_setup(int *argc, char **argv); 95fa9e4066Sahrens #endif /* ZFS_DEBUG */ 96fa9e4066Sahrens 97fa9e4066Sahrens extern void cmn_err(int, const char *, ...); 98fa9e4066Sahrens extern void panic(const char *, ...); 99fa9e4066Sahrens extern void vpanic(const char *, __va_list); 100fa9e4066Sahrens 101fa9e4066Sahrens /* This definition is copied from assert.h. */ 102fa9e4066Sahrens #if defined(__STDC__) 103fa9e4066Sahrens #if __STDC_VERSION__ - 0 >= 199901L 104fa9e4066Sahrens #define verify(EX) (void)((EX) || \ 105fa9e4066Sahrens (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) 106fa9e4066Sahrens #else 107fa9e4066Sahrens #define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) 108fa9e4066Sahrens #endif /* __STDC_VERSION__ - 0 >= 199901L */ 109fa9e4066Sahrens #else 110fa9e4066Sahrens #define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) 111fa9e4066Sahrens #endif /* __STDC__ */ 112fa9e4066Sahrens 113fa9e4066Sahrens 114fa9e4066Sahrens #define VERIFY verify 115fa9e4066Sahrens #define ASSERT assert 116fa9e4066Sahrens 117fa9e4066Sahrens extern void __assert(const char *, const char *, int); 118fa9e4066Sahrens 119fa9e4066Sahrens #ifdef lint 120fa9e4066Sahrens #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) 121fa9e4066Sahrens #else 122fa9e4066Sahrens /* BEGIN CSTYLED */ 123fa9e4066Sahrens #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 124fa9e4066Sahrens const TYPE __left = (TYPE)(LEFT); \ 125fa9e4066Sahrens const TYPE __right = (TYPE)(RIGHT); \ 126fa9e4066Sahrens if (!(__left OP __right)) { \ 127fa9e4066Sahrens char *__buf = alloca(256); \ 128fa9e4066Sahrens (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ 129fa9e4066Sahrens #LEFT, #OP, #RIGHT, \ 130fa9e4066Sahrens (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ 131fa9e4066Sahrens __assert(__buf, __FILE__, __LINE__); \ 132fa9e4066Sahrens } \ 133fa9e4066Sahrens _NOTE(CONSTCOND) } while (0) 134fa9e4066Sahrens /* END CSTYLED */ 135fa9e4066Sahrens #endif /* lint */ 136fa9e4066Sahrens 137fa9e4066Sahrens #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 138fa9e4066Sahrens #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 139fa9e4066Sahrens #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 140fa9e4066Sahrens 141fa9e4066Sahrens #ifdef NDEBUG 142fa9e4066Sahrens #define ASSERT3S(x, y, z) ((void)0) 143fa9e4066Sahrens #define ASSERT3U(x, y, z) ((void)0) 144fa9e4066Sahrens #define ASSERT3P(x, y, z) ((void)0) 145fa9e4066Sahrens #else 146fa9e4066Sahrens #define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 147fa9e4066Sahrens #define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 148fa9e4066Sahrens #define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 149fa9e4066Sahrens #endif 150fa9e4066Sahrens 151fa9e4066Sahrens /* 152fa9e4066Sahrens * Dtrace SDT probes have different signatures in userland than they do in 153fa9e4066Sahrens * kernel. If they're being used in kernel code, re-define them out of 154fa9e4066Sahrens * existence for their counterparts in libzpool. 155fa9e4066Sahrens */ 156fa9e4066Sahrens 157fa9e4066Sahrens #ifdef DTRACE_PROBE1 158fa9e4066Sahrens #undef DTRACE_PROBE1 159fa9e4066Sahrens #define DTRACE_PROBE1(a, b, c) ((void)0) 160fa9e4066Sahrens #endif /* DTRACE_PROBE1 */ 161fa9e4066Sahrens 162fa9e4066Sahrens #ifdef DTRACE_PROBE2 163fa9e4066Sahrens #undef DTRACE_PROBE2 164fa9e4066Sahrens #define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 165fa9e4066Sahrens #endif /* DTRACE_PROBE2 */ 166fa9e4066Sahrens 167fa9e4066Sahrens /* 168fa9e4066Sahrens * Threads 169fa9e4066Sahrens */ 170fa9e4066Sahrens #define curthread ((void *)(uintptr_t)thr_self()) 171fa9e4066Sahrens 172fa9e4066Sahrens typedef struct kthread kthread_t; 173fa9e4066Sahrens 174fa9e4066Sahrens #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 175fa9e4066Sahrens zk_thread_create(func, arg) 176fa9e4066Sahrens #define thread_exit() thr_exit(0) 177fa9e4066Sahrens 178fa9e4066Sahrens extern kthread_t *zk_thread_create(void (*func)(), void *arg); 179fa9e4066Sahrens 180fa9e4066Sahrens #define issig(why) (FALSE) 181fa9e4066Sahrens #define ISSIG(thr, why) (FALSE) 182fa9e4066Sahrens 183fa9e4066Sahrens /* 184fa9e4066Sahrens * Mutexes 185fa9e4066Sahrens */ 186fa9e4066Sahrens typedef struct kmutex { 187fa9e4066Sahrens void *m_owner; 188fa9e4066Sahrens mutex_t m_lock; 189fa9e4066Sahrens } kmutex_t; 190fa9e4066Sahrens 191fa9e4066Sahrens #define MUTEX_DEFAULT USYNC_THREAD 192fa9e4066Sahrens #undef MUTEX_HELD 193fa9e4066Sahrens #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) 194fa9e4066Sahrens 195fa9e4066Sahrens /* 196fa9e4066Sahrens * Argh -- we have to get cheesy here because the kernel and userland 197fa9e4066Sahrens * have different signatures for the same routine. 198fa9e4066Sahrens */ 199fa9e4066Sahrens extern int _mutex_init(mutex_t *mp, int type, void *arg); 200fa9e4066Sahrens extern int _mutex_destroy(mutex_t *mp); 201fa9e4066Sahrens 202fa9e4066Sahrens #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 203fa9e4066Sahrens #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 204fa9e4066Sahrens 205fa9e4066Sahrens extern void zmutex_init(kmutex_t *mp); 206fa9e4066Sahrens extern void zmutex_destroy(kmutex_t *mp); 207fa9e4066Sahrens extern void mutex_enter(kmutex_t *mp); 208fa9e4066Sahrens extern void mutex_exit(kmutex_t *mp); 209fa9e4066Sahrens extern int mutex_tryenter(kmutex_t *mp); 210fa9e4066Sahrens extern void *mutex_owner(kmutex_t *mp); 211fa9e4066Sahrens 212fa9e4066Sahrens /* 213fa9e4066Sahrens * RW locks 214fa9e4066Sahrens */ 215fa9e4066Sahrens typedef struct krwlock { 216fa9e4066Sahrens void *rw_owner; 217fa9e4066Sahrens rwlock_t rw_lock; 218fa9e4066Sahrens } krwlock_t; 219fa9e4066Sahrens 220fa9e4066Sahrens typedef int krw_t; 221fa9e4066Sahrens 222fa9e4066Sahrens #define RW_READER 0 223fa9e4066Sahrens #define RW_WRITER 1 224fa9e4066Sahrens #define RW_DEFAULT USYNC_THREAD 225fa9e4066Sahrens 226fa9e4066Sahrens #undef RW_READ_HELD 227fa9e4066Sahrens #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) 228fa9e4066Sahrens 229fa9e4066Sahrens #undef RW_WRITE_HELD 230fa9e4066Sahrens #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) 231fa9e4066Sahrens 232fa9e4066Sahrens extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 233fa9e4066Sahrens extern void rw_destroy(krwlock_t *rwlp); 234fa9e4066Sahrens extern void rw_enter(krwlock_t *rwlp, krw_t rw); 235fa9e4066Sahrens extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 236fa9e4066Sahrens extern int rw_tryupgrade(krwlock_t *rwlp); 237fa9e4066Sahrens extern void rw_exit(krwlock_t *rwlp); 238fa9e4066Sahrens #define rw_downgrade(rwlp) do { } while (0) 239fa9e4066Sahrens 240fa9e4066Sahrens /* 241fa9e4066Sahrens * Condition variables 242fa9e4066Sahrens */ 243fa9e4066Sahrens typedef cond_t kcondvar_t; 244fa9e4066Sahrens 245fa9e4066Sahrens #define CV_DEFAULT USYNC_THREAD 246fa9e4066Sahrens 247fa9e4066Sahrens extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 248fa9e4066Sahrens extern void cv_destroy(kcondvar_t *cv); 249fa9e4066Sahrens extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 250fa9e4066Sahrens extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 251fa9e4066Sahrens extern void cv_signal(kcondvar_t *cv); 252fa9e4066Sahrens extern void cv_broadcast(kcondvar_t *cv); 253fa9e4066Sahrens 254fa9e4066Sahrens /* 255fa9e4066Sahrens * Kernel memory 256fa9e4066Sahrens */ 257fa9e4066Sahrens #define KM_SLEEP UMEM_NOFAIL 258fa9e4066Sahrens #define KM_NOSLEEP UMEM_DEFAULT 259a0965f35Sbonwick #define KMC_NODEBUG UMC_NODEBUG 260fa9e4066Sahrens #define kmem_alloc(_s, _f) umem_alloc(_s, _f) 261fa9e4066Sahrens #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 262fa9e4066Sahrens #define kmem_free(_b, _s) umem_free(_b, _s) 263fa9e4066Sahrens #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 264fa9e4066Sahrens umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 265fa9e4066Sahrens #define kmem_cache_destroy(_c) umem_cache_destroy(_c) 266fa9e4066Sahrens #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 267fa9e4066Sahrens #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 268fa9e4066Sahrens #define kmem_debugging() 0 269fa9e4066Sahrens #define kmem_cache_reap_now(c) 270fa9e4066Sahrens 271fa9e4066Sahrens typedef umem_cache_t kmem_cache_t; 272fa9e4066Sahrens 273fa9e4066Sahrens /* 274fa9e4066Sahrens * Task queues 275fa9e4066Sahrens */ 276fa9e4066Sahrens typedef struct taskq taskq_t; 277fa9e4066Sahrens typedef uintptr_t taskqid_t; 278fa9e4066Sahrens typedef void (task_func_t)(void *); 279fa9e4066Sahrens 280fa9e4066Sahrens #define TASKQ_PREPOPULATE 0x0001 281fa9e4066Sahrens #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 282fa9e4066Sahrens #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 283fa9e4066Sahrens 284fa9e4066Sahrens #define TQ_SLEEP KM_SLEEP /* Can block for memory */ 285fa9e4066Sahrens #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 286fa9e4066Sahrens #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 287fa9e4066Sahrens 288fa9e4066Sahrens extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 289fa9e4066Sahrens extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 290fa9e4066Sahrens extern void taskq_destroy(taskq_t *); 291fa9e4066Sahrens extern void taskq_wait(taskq_t *); 292fa9e4066Sahrens extern int taskq_member(taskq_t *, void *); 293fa9e4066Sahrens 294fa9e4066Sahrens /* 295fa9e4066Sahrens * vnodes 296fa9e4066Sahrens */ 297fa9e4066Sahrens typedef struct vnode { 298fa9e4066Sahrens uint64_t v_size; 299fa9e4066Sahrens int v_fd; 300fa9e4066Sahrens char *v_path; 301fa9e4066Sahrens } vnode_t; 302fa9e4066Sahrens 303fa9e4066Sahrens typedef struct vattr { 304fa9e4066Sahrens uint_t va_mask; /* bit-mask of attributes */ 305fa9e4066Sahrens u_offset_t va_size; /* file size in bytes */ 306fa9e4066Sahrens } vattr_t; 307fa9e4066Sahrens 308fa9e4066Sahrens #define AT_TYPE 0x0001 309fa9e4066Sahrens #define AT_MODE 0x0002 310fa9e4066Sahrens #define AT_UID 0x0004 311fa9e4066Sahrens #define AT_GID 0x0008 312fa9e4066Sahrens #define AT_FSID 0x0010 313fa9e4066Sahrens #define AT_NODEID 0x0020 314fa9e4066Sahrens #define AT_NLINK 0x0040 315fa9e4066Sahrens #define AT_SIZE 0x0080 316fa9e4066Sahrens #define AT_ATIME 0x0100 317fa9e4066Sahrens #define AT_MTIME 0x0200 318fa9e4066Sahrens #define AT_CTIME 0x0400 319fa9e4066Sahrens #define AT_RDEV 0x0800 320fa9e4066Sahrens #define AT_BLKSIZE 0x1000 321fa9e4066Sahrens #define AT_NBLOCKS 0x2000 322fa9e4066Sahrens #define AT_SEQ 0x8000 323fa9e4066Sahrens 324fa9e4066Sahrens #define CRCREAT 0 325fa9e4066Sahrens 326fa9e4066Sahrens #define VOP_CLOSE(vp, f, c, o, cr) 0 327fa9e4066Sahrens #define VOP_PUTPAGE(vp, of, sz, fl, cr) 0 328fa9e4066Sahrens #define VOP_GETATTR(vp, vap, fl, cr) ((vap)->va_size = (vp)->v_size, 0) 329fa9e4066Sahrens 330fa9e4066Sahrens #define VOP_FSYNC(vp, f, cr) fsync((vp)->v_fd) 331fa9e4066Sahrens 332fa9e4066Sahrens #define VN_RELE(vp) vn_close(vp) 333fa9e4066Sahrens 334fa9e4066Sahrens extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 335fa9e4066Sahrens int x2, int x3); 336fa9e4066Sahrens extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 337fa9e4066Sahrens int x2, int x3, vnode_t *vp); 338fa9e4066Sahrens extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 339fa9e4066Sahrens offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 340fa9e4066Sahrens extern void vn_close(vnode_t *vp); 341fa9e4066Sahrens 342fa9e4066Sahrens #define vn_remove(path, x1, x2) remove(path) 343fa9e4066Sahrens #define vn_rename(from, to, seg) rename((from), (to)) 344fa9e4066Sahrens 345fa9e4066Sahrens extern vnode_t *rootdir; 346fa9e4066Sahrens 347fa9e4066Sahrens #include <sys/file.h> /* for FREAD, FWRITE, etc */ 348fa9e4066Sahrens 349fa9e4066Sahrens /* 350fa9e4066Sahrens * Random stuff 351fa9e4066Sahrens */ 352fa9e4066Sahrens #define lbolt (gethrtime() >> 23) 353fa9e4066Sahrens #define lbolt64 (gethrtime() >> 23) 354fa9e4066Sahrens #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 355fa9e4066Sahrens 356fa9e4066Sahrens extern void delay(clock_t ticks); 357fa9e4066Sahrens 358fa9e4066Sahrens #define gethrestime_sec() time(NULL) 359fa9e4066Sahrens 360fa9e4066Sahrens #define max_ncpus 64 361fa9e4066Sahrens 362fa9e4066Sahrens #define minclsyspri 60 363fa9e4066Sahrens #define maxclsyspri 99 364fa9e4066Sahrens 365fa9e4066Sahrens #define CPU_SEQID (thr_self() & (max_ncpus - 1)) 366fa9e4066Sahrens 367fa9e4066Sahrens #define kcred NULL 368fa9e4066Sahrens #define CRED() NULL 369fa9e4066Sahrens 370fa9e4066Sahrens extern uint64_t physmem; 371fa9e4066Sahrens 372fa9e4066Sahrens extern int highbit(ulong_t i); 373fa9e4066Sahrens extern int random_get_bytes(uint8_t *ptr, size_t len); 374fa9e4066Sahrens extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 375fa9e4066Sahrens 376fa9e4066Sahrens extern void kernel_init(int); 377fa9e4066Sahrens extern void kernel_fini(void); 378fa9e4066Sahrens 379fa9e4066Sahrens struct spa; 380fa9e4066Sahrens extern void nicenum(uint64_t num, char *buf); 381fa9e4066Sahrens extern void show_pool_stats(struct spa *); 382fa9e4066Sahrens 383fa9e4066Sahrens typedef struct callb_cpr { 384fa9e4066Sahrens kmutex_t *cc_lockp; 385fa9e4066Sahrens } callb_cpr_t; 386fa9e4066Sahrens 387fa9e4066Sahrens #define CALLB_CPR_INIT(cp, lockp, func, name) { \ 388fa9e4066Sahrens (cp)->cc_lockp = lockp; \ 389fa9e4066Sahrens } 390fa9e4066Sahrens 391fa9e4066Sahrens #define CALLB_CPR_SAFE_BEGIN(cp) { \ 392fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 393fa9e4066Sahrens } 394fa9e4066Sahrens 395fa9e4066Sahrens #define CALLB_CPR_SAFE_END(cp, lockp) { \ 396fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 397fa9e4066Sahrens } 398fa9e4066Sahrens 399fa9e4066Sahrens #define CALLB_CPR_EXIT(cp) { \ 400fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 401fa9e4066Sahrens mutex_exit((cp)->cc_lockp); \ 402fa9e4066Sahrens } 403fa9e4066Sahrens 404fa9e4066Sahrens #define zone_dataset_visible(x, y) (1) 405fa9e4066Sahrens #define INGLOBALZONE(z) (1) 406fa9e4066Sahrens 407fa9e4066Sahrens #ifdef __cplusplus 408fa9e4066Sahrens } 409fa9e4066Sahrens #endif 410fa9e4066Sahrens 411*ea8dc4b6Seschrock /* ZFS Boot Related stuff. */ 412*ea8dc4b6Seschrock 413*ea8dc4b6Seschrock struct _buf { 414*ea8dc4b6Seschrock intptr_t _fd; 415*ea8dc4b6Seschrock }; 416*ea8dc4b6Seschrock 417*ea8dc4b6Seschrock struct bootstat { 418*ea8dc4b6Seschrock uint64_t st_size; 419*ea8dc4b6Seschrock }; 420*ea8dc4b6Seschrock 421*ea8dc4b6Seschrock extern struct _buf *kobj_open_file(char *name); 422*ea8dc4b6Seschrock extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 423*ea8dc4b6Seschrock unsigned off); 424*ea8dc4b6Seschrock extern void kobj_close_file(struct _buf *file); 425*ea8dc4b6Seschrock extern int kobj_fstat(intptr_t, struct bootstat *); 426*ea8dc4b6Seschrock 427*ea8dc4b6Seschrock 428fa9e4066Sahrens #endif /* _SYS_ZFS_CONTEXT_H */ 429