1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * 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*44cb6abcSbmc * Copyright 2007 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> 74*44cb6abcSbmc #include <sys/kstat.h> 75fa9e4066Sahrens 76fa9e4066Sahrens /* 77fa9e4066Sahrens * Debugging 78fa9e4066Sahrens */ 79fa9e4066Sahrens 80fa9e4066Sahrens /* 81fa9e4066Sahrens * Note that we are not using the debugging levels. 82fa9e4066Sahrens */ 83fa9e4066Sahrens 84fa9e4066Sahrens #define CE_CONT 0 /* continuation */ 85fa9e4066Sahrens #define CE_NOTE 1 /* notice */ 86fa9e4066Sahrens #define CE_WARN 2 /* warning */ 87fa9e4066Sahrens #define CE_PANIC 3 /* panic */ 88fa9e4066Sahrens #define CE_IGNORE 4 /* print nothing */ 89fa9e4066Sahrens 90fa9e4066Sahrens /* 91fa9e4066Sahrens * ZFS debugging 92fa9e4066Sahrens */ 93fa9e4066Sahrens 94fa9e4066Sahrens #ifdef ZFS_DEBUG 95fa9e4066Sahrens extern void dprintf_setup(int *argc, char **argv); 96fa9e4066Sahrens #endif /* ZFS_DEBUG */ 97fa9e4066Sahrens 98fa9e4066Sahrens extern void cmn_err(int, const char *, ...); 99fa9e4066Sahrens extern void panic(const char *, ...); 100fa9e4066Sahrens extern void vpanic(const char *, __va_list); 101fa9e4066Sahrens 102fa9e4066Sahrens /* This definition is copied from assert.h. */ 103fa9e4066Sahrens #if defined(__STDC__) 104fa9e4066Sahrens #if __STDC_VERSION__ - 0 >= 199901L 105fa9e4066Sahrens #define verify(EX) (void)((EX) || \ 106fa9e4066Sahrens (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) 107fa9e4066Sahrens #else 108fa9e4066Sahrens #define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) 109fa9e4066Sahrens #endif /* __STDC_VERSION__ - 0 >= 199901L */ 110fa9e4066Sahrens #else 111fa9e4066Sahrens #define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) 112fa9e4066Sahrens #endif /* __STDC__ */ 113fa9e4066Sahrens 114fa9e4066Sahrens 115fa9e4066Sahrens #define VERIFY verify 116fa9e4066Sahrens #define ASSERT assert 117fa9e4066Sahrens 118fa9e4066Sahrens extern void __assert(const char *, const char *, int); 119fa9e4066Sahrens 120fa9e4066Sahrens #ifdef lint 121fa9e4066Sahrens #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) 122fa9e4066Sahrens #else 123fa9e4066Sahrens /* BEGIN CSTYLED */ 124fa9e4066Sahrens #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 125fa9e4066Sahrens const TYPE __left = (TYPE)(LEFT); \ 126fa9e4066Sahrens const TYPE __right = (TYPE)(RIGHT); \ 127fa9e4066Sahrens if (!(__left OP __right)) { \ 128fa9e4066Sahrens char *__buf = alloca(256); \ 129fa9e4066Sahrens (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ 130fa9e4066Sahrens #LEFT, #OP, #RIGHT, \ 131fa9e4066Sahrens (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ 132fa9e4066Sahrens __assert(__buf, __FILE__, __LINE__); \ 133fa9e4066Sahrens } \ 134fa9e4066Sahrens _NOTE(CONSTCOND) } while (0) 135fa9e4066Sahrens /* END CSTYLED */ 136fa9e4066Sahrens #endif /* lint */ 137fa9e4066Sahrens 138fa9e4066Sahrens #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 139fa9e4066Sahrens #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 140fa9e4066Sahrens #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 141fa9e4066Sahrens 142fa9e4066Sahrens #ifdef NDEBUG 143fa9e4066Sahrens #define ASSERT3S(x, y, z) ((void)0) 144fa9e4066Sahrens #define ASSERT3U(x, y, z) ((void)0) 145fa9e4066Sahrens #define ASSERT3P(x, y, z) ((void)0) 146fa9e4066Sahrens #else 147fa9e4066Sahrens #define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 148fa9e4066Sahrens #define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 149fa9e4066Sahrens #define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 150fa9e4066Sahrens #endif 151fa9e4066Sahrens 152fa9e4066Sahrens /* 153fa9e4066Sahrens * Dtrace SDT probes have different signatures in userland than they do in 154fa9e4066Sahrens * kernel. If they're being used in kernel code, re-define them out of 155fa9e4066Sahrens * existence for their counterparts in libzpool. 156fa9e4066Sahrens */ 157fa9e4066Sahrens 158fa9e4066Sahrens #ifdef DTRACE_PROBE1 159fa9e4066Sahrens #undef DTRACE_PROBE1 160fa9e4066Sahrens #define DTRACE_PROBE1(a, b, c) ((void)0) 161fa9e4066Sahrens #endif /* DTRACE_PROBE1 */ 162fa9e4066Sahrens 163fa9e4066Sahrens #ifdef DTRACE_PROBE2 164fa9e4066Sahrens #undef DTRACE_PROBE2 165fa9e4066Sahrens #define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 166fa9e4066Sahrens #endif /* DTRACE_PROBE2 */ 167fa9e4066Sahrens 168c543ec06Sahrens #ifdef DTRACE_PROBE3 169c543ec06Sahrens #undef DTRACE_PROBE3 170c543ec06Sahrens #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) 171c543ec06Sahrens #endif /* DTRACE_PROBE3 */ 172c543ec06Sahrens 173faafa6e3Sahrens #ifdef DTRACE_PROBE4 174faafa6e3Sahrens #undef DTRACE_PROBE4 175faafa6e3Sahrens #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) 176faafa6e3Sahrens #endif /* DTRACE_PROBE4 */ 177faafa6e3Sahrens 178fa9e4066Sahrens /* 179fa9e4066Sahrens * Threads 180fa9e4066Sahrens */ 181fa9e4066Sahrens #define curthread ((void *)(uintptr_t)thr_self()) 182fa9e4066Sahrens 183fa9e4066Sahrens typedef struct kthread kthread_t; 184fa9e4066Sahrens 185fa9e4066Sahrens #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 186fa9e4066Sahrens zk_thread_create(func, arg) 1875ad82045Snd #define thread_exit() thr_exit(NULL) 188fa9e4066Sahrens 189fa9e4066Sahrens extern kthread_t *zk_thread_create(void (*func)(), void *arg); 190fa9e4066Sahrens 191fa9e4066Sahrens #define issig(why) (FALSE) 192fa9e4066Sahrens #define ISSIG(thr, why) (FALSE) 193fa9e4066Sahrens 194fa9e4066Sahrens /* 195fa9e4066Sahrens * Mutexes 196fa9e4066Sahrens */ 197fa9e4066Sahrens typedef struct kmutex { 198fa9e4066Sahrens void *m_owner; 199fa9e4066Sahrens mutex_t m_lock; 200fa9e4066Sahrens } kmutex_t; 201fa9e4066Sahrens 202fa9e4066Sahrens #define MUTEX_DEFAULT USYNC_THREAD 203fa9e4066Sahrens #undef MUTEX_HELD 204fa9e4066Sahrens #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) 205fa9e4066Sahrens 206fa9e4066Sahrens /* 207fa9e4066Sahrens * Argh -- we have to get cheesy here because the kernel and userland 208fa9e4066Sahrens * have different signatures for the same routine. 209fa9e4066Sahrens */ 210fa9e4066Sahrens extern int _mutex_init(mutex_t *mp, int type, void *arg); 211fa9e4066Sahrens extern int _mutex_destroy(mutex_t *mp); 212fa9e4066Sahrens 213fa9e4066Sahrens #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 214fa9e4066Sahrens #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 215fa9e4066Sahrens 216fa9e4066Sahrens extern void zmutex_init(kmutex_t *mp); 217fa9e4066Sahrens extern void zmutex_destroy(kmutex_t *mp); 218fa9e4066Sahrens extern void mutex_enter(kmutex_t *mp); 219fa9e4066Sahrens extern void mutex_exit(kmutex_t *mp); 220fa9e4066Sahrens extern int mutex_tryenter(kmutex_t *mp); 221fa9e4066Sahrens extern void *mutex_owner(kmutex_t *mp); 222fa9e4066Sahrens 223fa9e4066Sahrens /* 224fa9e4066Sahrens * RW locks 225fa9e4066Sahrens */ 226fa9e4066Sahrens typedef struct krwlock { 227fa9e4066Sahrens void *rw_owner; 228fa9e4066Sahrens rwlock_t rw_lock; 229fa9e4066Sahrens } krwlock_t; 230fa9e4066Sahrens 231fa9e4066Sahrens typedef int krw_t; 232fa9e4066Sahrens 233fa9e4066Sahrens #define RW_READER 0 234fa9e4066Sahrens #define RW_WRITER 1 235fa9e4066Sahrens #define RW_DEFAULT USYNC_THREAD 236fa9e4066Sahrens 237fa9e4066Sahrens #undef RW_READ_HELD 238fa9e4066Sahrens #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) 239fa9e4066Sahrens 240fa9e4066Sahrens #undef RW_WRITE_HELD 241fa9e4066Sahrens #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) 242fa9e4066Sahrens 243fa9e4066Sahrens extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 244fa9e4066Sahrens extern void rw_destroy(krwlock_t *rwlp); 245fa9e4066Sahrens extern void rw_enter(krwlock_t *rwlp, krw_t rw); 246fa9e4066Sahrens extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 247fa9e4066Sahrens extern int rw_tryupgrade(krwlock_t *rwlp); 248fa9e4066Sahrens extern void rw_exit(krwlock_t *rwlp); 249fa9e4066Sahrens #define rw_downgrade(rwlp) do { } while (0) 250fa9e4066Sahrens 251fa9e4066Sahrens /* 252fa9e4066Sahrens * Condition variables 253fa9e4066Sahrens */ 254fa9e4066Sahrens typedef cond_t kcondvar_t; 255fa9e4066Sahrens 256fa9e4066Sahrens #define CV_DEFAULT USYNC_THREAD 257fa9e4066Sahrens 258fa9e4066Sahrens extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 259fa9e4066Sahrens extern void cv_destroy(kcondvar_t *cv); 260fa9e4066Sahrens extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 261fa9e4066Sahrens extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 262fa9e4066Sahrens extern void cv_signal(kcondvar_t *cv); 263fa9e4066Sahrens extern void cv_broadcast(kcondvar_t *cv); 264fa9e4066Sahrens 265*44cb6abcSbmc /* 266*44cb6abcSbmc * kstat creation, installation and deletion 267*44cb6abcSbmc */ 268*44cb6abcSbmc extern kstat_t *kstat_create(char *, int, 269*44cb6abcSbmc char *, char *, uchar_t, ulong_t, uchar_t); 270*44cb6abcSbmc extern void kstat_install(kstat_t *); 271*44cb6abcSbmc extern void kstat_delete(kstat_t *); 272*44cb6abcSbmc 273fa9e4066Sahrens /* 274fa9e4066Sahrens * Kernel memory 275fa9e4066Sahrens */ 276fa9e4066Sahrens #define KM_SLEEP UMEM_NOFAIL 277fa9e4066Sahrens #define KM_NOSLEEP UMEM_DEFAULT 278a0965f35Sbonwick #define KMC_NODEBUG UMC_NODEBUG 279fa9e4066Sahrens #define kmem_alloc(_s, _f) umem_alloc(_s, _f) 280fa9e4066Sahrens #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 281fa9e4066Sahrens #define kmem_free(_b, _s) umem_free(_b, _s) 282fa9e4066Sahrens #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 283fa9e4066Sahrens umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 284fa9e4066Sahrens #define kmem_cache_destroy(_c) umem_cache_destroy(_c) 285fa9e4066Sahrens #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 286fa9e4066Sahrens #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 287fa9e4066Sahrens #define kmem_debugging() 0 288fa9e4066Sahrens #define kmem_cache_reap_now(c) 289fa9e4066Sahrens 290fa9e4066Sahrens typedef umem_cache_t kmem_cache_t; 291fa9e4066Sahrens 292fa9e4066Sahrens /* 293fa9e4066Sahrens * Task queues 294fa9e4066Sahrens */ 295fa9e4066Sahrens typedef struct taskq taskq_t; 296fa9e4066Sahrens typedef uintptr_t taskqid_t; 297fa9e4066Sahrens typedef void (task_func_t)(void *); 298fa9e4066Sahrens 299fa9e4066Sahrens #define TASKQ_PREPOPULATE 0x0001 300fa9e4066Sahrens #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 301fa9e4066Sahrens #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 302fa9e4066Sahrens 303fa9e4066Sahrens #define TQ_SLEEP KM_SLEEP /* Can block for memory */ 304fa9e4066Sahrens #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 305fa9e4066Sahrens #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 306fa9e4066Sahrens 307fa9e4066Sahrens extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 308fa9e4066Sahrens extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 309fa9e4066Sahrens extern void taskq_destroy(taskq_t *); 310fa9e4066Sahrens extern void taskq_wait(taskq_t *); 311fa9e4066Sahrens extern int taskq_member(taskq_t *, void *); 312fa9e4066Sahrens 313fa9e4066Sahrens /* 314fa9e4066Sahrens * vnodes 315fa9e4066Sahrens */ 316fa9e4066Sahrens typedef struct vnode { 317fa9e4066Sahrens uint64_t v_size; 318fa9e4066Sahrens int v_fd; 319fa9e4066Sahrens char *v_path; 320fa9e4066Sahrens } vnode_t; 321fa9e4066Sahrens 322fa9e4066Sahrens typedef struct vattr { 323fa9e4066Sahrens uint_t va_mask; /* bit-mask of attributes */ 324fa9e4066Sahrens u_offset_t va_size; /* file size in bytes */ 325fa9e4066Sahrens } vattr_t; 326fa9e4066Sahrens 327fa9e4066Sahrens #define AT_TYPE 0x0001 328fa9e4066Sahrens #define AT_MODE 0x0002 329fa9e4066Sahrens #define AT_UID 0x0004 330fa9e4066Sahrens #define AT_GID 0x0008 331fa9e4066Sahrens #define AT_FSID 0x0010 332fa9e4066Sahrens #define AT_NODEID 0x0020 333fa9e4066Sahrens #define AT_NLINK 0x0040 334fa9e4066Sahrens #define AT_SIZE 0x0080 335fa9e4066Sahrens #define AT_ATIME 0x0100 336fa9e4066Sahrens #define AT_MTIME 0x0200 337fa9e4066Sahrens #define AT_CTIME 0x0400 338fa9e4066Sahrens #define AT_RDEV 0x0800 339fa9e4066Sahrens #define AT_BLKSIZE 0x1000 340fa9e4066Sahrens #define AT_NBLOCKS 0x2000 341fa9e4066Sahrens #define AT_SEQ 0x8000 342fa9e4066Sahrens 343fa9e4066Sahrens #define CRCREAT 0 344fa9e4066Sahrens 345fa9e4066Sahrens #define VOP_CLOSE(vp, f, c, o, cr) 0 346fa9e4066Sahrens #define VOP_PUTPAGE(vp, of, sz, fl, cr) 0 347fa9e4066Sahrens #define VOP_GETATTR(vp, vap, fl, cr) ((vap)->va_size = (vp)->v_size, 0) 348fa9e4066Sahrens 349fa9e4066Sahrens #define VOP_FSYNC(vp, f, cr) fsync((vp)->v_fd) 350fa9e4066Sahrens 351fa9e4066Sahrens #define VN_RELE(vp) vn_close(vp) 352fa9e4066Sahrens 353fa9e4066Sahrens extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 354fa9e4066Sahrens int x2, int x3); 355fa9e4066Sahrens extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 356fa9e4066Sahrens int x2, int x3, vnode_t *vp); 357fa9e4066Sahrens extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 358fa9e4066Sahrens offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 359fa9e4066Sahrens extern void vn_close(vnode_t *vp); 360fa9e4066Sahrens 361fa9e4066Sahrens #define vn_remove(path, x1, x2) remove(path) 362fa9e4066Sahrens #define vn_rename(from, to, seg) rename((from), (to)) 3630373e76bSbonwick #define vn_is_readonly(vp) B_FALSE 364fa9e4066Sahrens 365fa9e4066Sahrens extern vnode_t *rootdir; 366fa9e4066Sahrens 367fa9e4066Sahrens #include <sys/file.h> /* for FREAD, FWRITE, etc */ 368fa9e4066Sahrens 369fa9e4066Sahrens /* 370fa9e4066Sahrens * Random stuff 371fa9e4066Sahrens */ 372fa9e4066Sahrens #define lbolt (gethrtime() >> 23) 373fa9e4066Sahrens #define lbolt64 (gethrtime() >> 23) 374fa9e4066Sahrens #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 375fa9e4066Sahrens 376fa9e4066Sahrens extern void delay(clock_t ticks); 377fa9e4066Sahrens 378fa9e4066Sahrens #define gethrestime_sec() time(NULL) 379fa9e4066Sahrens 380fa9e4066Sahrens #define max_ncpus 64 381fa9e4066Sahrens 382fa9e4066Sahrens #define minclsyspri 60 383fa9e4066Sahrens #define maxclsyspri 99 384fa9e4066Sahrens 385fa9e4066Sahrens #define CPU_SEQID (thr_self() & (max_ncpus - 1)) 386fa9e4066Sahrens 387fa9e4066Sahrens #define kcred NULL 388fa9e4066Sahrens #define CRED() NULL 389fa9e4066Sahrens 390fa9e4066Sahrens extern uint64_t physmem; 391fa9e4066Sahrens 392fa9e4066Sahrens extern int highbit(ulong_t i); 393fa9e4066Sahrens extern int random_get_bytes(uint8_t *ptr, size_t len); 394fa9e4066Sahrens extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 395fa9e4066Sahrens 396fa9e4066Sahrens extern void kernel_init(int); 397fa9e4066Sahrens extern void kernel_fini(void); 398fa9e4066Sahrens 399fa9e4066Sahrens struct spa; 400fa9e4066Sahrens extern void nicenum(uint64_t num, char *buf); 401fa9e4066Sahrens extern void show_pool_stats(struct spa *); 402fa9e4066Sahrens 403fa9e4066Sahrens typedef struct callb_cpr { 404fa9e4066Sahrens kmutex_t *cc_lockp; 405fa9e4066Sahrens } callb_cpr_t; 406fa9e4066Sahrens 407fa9e4066Sahrens #define CALLB_CPR_INIT(cp, lockp, func, name) { \ 408fa9e4066Sahrens (cp)->cc_lockp = lockp; \ 409fa9e4066Sahrens } 410fa9e4066Sahrens 411fa9e4066Sahrens #define CALLB_CPR_SAFE_BEGIN(cp) { \ 412fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 413fa9e4066Sahrens } 414fa9e4066Sahrens 415fa9e4066Sahrens #define CALLB_CPR_SAFE_END(cp, lockp) { \ 416fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 417fa9e4066Sahrens } 418fa9e4066Sahrens 419fa9e4066Sahrens #define CALLB_CPR_EXIT(cp) { \ 420fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 421fa9e4066Sahrens mutex_exit((cp)->cc_lockp); \ 422fa9e4066Sahrens } 423fa9e4066Sahrens 424fa9e4066Sahrens #define zone_dataset_visible(x, y) (1) 425fa9e4066Sahrens #define INGLOBALZONE(z) (1) 426fa9e4066Sahrens 427fa9e4066Sahrens #ifdef __cplusplus 428fa9e4066Sahrens } 429fa9e4066Sahrens #endif 430fa9e4066Sahrens 431ea8dc4b6Seschrock /* ZFS Boot Related stuff. */ 432ea8dc4b6Seschrock 433ea8dc4b6Seschrock struct _buf { 434ea8dc4b6Seschrock intptr_t _fd; 435ea8dc4b6Seschrock }; 436ea8dc4b6Seschrock 437ea8dc4b6Seschrock struct bootstat { 438ea8dc4b6Seschrock uint64_t st_size; 439ea8dc4b6Seschrock }; 440ea8dc4b6Seschrock 441ea8dc4b6Seschrock extern struct _buf *kobj_open_file(char *name); 442ea8dc4b6Seschrock extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 443ea8dc4b6Seschrock unsigned off); 444ea8dc4b6Seschrock extern void kobj_close_file(struct _buf *file); 445ea8dc4b6Seschrock extern int kobj_fstat(intptr_t, struct bootstat *); 446ea8dc4b6Seschrock 447ea8dc4b6Seschrock 448fa9e4066Sahrens #endif /* _SYS_ZFS_CONTEXT_H */ 449