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 /* 2244cb6abcSbmc * 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> 66*ecd6cf80Smarks #include <sys/cred.h> 67fa9e4066Sahrens #include <sys/sysmacros.h> 68fa9e4066Sahrens #include <sys/bitmap.h> 69fa9e4066Sahrens #include <sys/resource.h> 70fa9e4066Sahrens #include <sys/byteorder.h> 71fa9e4066Sahrens #include <sys/list.h> 72fa9e4066Sahrens #include <sys/uio.h> 73fa9e4066Sahrens #include <sys/zfs_debug.h> 74fa9e4066Sahrens #include <sys/sdt.h> 7544cb6abcSbmc #include <sys/kstat.h> 763d7072f8Seschrock #include <sys/sysevent/eventdefs.h> 77fa9e4066Sahrens 78fa9e4066Sahrens /* 79fa9e4066Sahrens * Debugging 80fa9e4066Sahrens */ 81fa9e4066Sahrens 82fa9e4066Sahrens /* 83fa9e4066Sahrens * Note that we are not using the debugging levels. 84fa9e4066Sahrens */ 85fa9e4066Sahrens 86fa9e4066Sahrens #define CE_CONT 0 /* continuation */ 87fa9e4066Sahrens #define CE_NOTE 1 /* notice */ 88fa9e4066Sahrens #define CE_WARN 2 /* warning */ 89fa9e4066Sahrens #define CE_PANIC 3 /* panic */ 90fa9e4066Sahrens #define CE_IGNORE 4 /* print nothing */ 91fa9e4066Sahrens 92fa9e4066Sahrens /* 93fa9e4066Sahrens * ZFS debugging 94fa9e4066Sahrens */ 95fa9e4066Sahrens 96fa9e4066Sahrens #ifdef ZFS_DEBUG 97fa9e4066Sahrens extern void dprintf_setup(int *argc, char **argv); 98fa9e4066Sahrens #endif /* ZFS_DEBUG */ 99fa9e4066Sahrens 100fa9e4066Sahrens extern void cmn_err(int, const char *, ...); 1010125049cSahrens extern void vcmn_err(int, const char *, __va_list); 102fa9e4066Sahrens extern void panic(const char *, ...); 103fa9e4066Sahrens extern void vpanic(const char *, __va_list); 104fa9e4066Sahrens 105fa9e4066Sahrens /* This definition is copied from assert.h. */ 106fa9e4066Sahrens #if defined(__STDC__) 107fa9e4066Sahrens #if __STDC_VERSION__ - 0 >= 199901L 108fa9e4066Sahrens #define verify(EX) (void)((EX) || \ 109fa9e4066Sahrens (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) 110fa9e4066Sahrens #else 111fa9e4066Sahrens #define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) 112fa9e4066Sahrens #endif /* __STDC_VERSION__ - 0 >= 199901L */ 113fa9e4066Sahrens #else 114fa9e4066Sahrens #define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) 115fa9e4066Sahrens #endif /* __STDC__ */ 116fa9e4066Sahrens 117fa9e4066Sahrens 118fa9e4066Sahrens #define VERIFY verify 119fa9e4066Sahrens #define ASSERT assert 120fa9e4066Sahrens 121fa9e4066Sahrens extern void __assert(const char *, const char *, int); 122fa9e4066Sahrens 123fa9e4066Sahrens #ifdef lint 124fa9e4066Sahrens #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) 125fa9e4066Sahrens #else 126fa9e4066Sahrens /* BEGIN CSTYLED */ 127fa9e4066Sahrens #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 128fa9e4066Sahrens const TYPE __left = (TYPE)(LEFT); \ 129fa9e4066Sahrens const TYPE __right = (TYPE)(RIGHT); \ 130fa9e4066Sahrens if (!(__left OP __right)) { \ 131fa9e4066Sahrens char *__buf = alloca(256); \ 132fa9e4066Sahrens (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ 133fa9e4066Sahrens #LEFT, #OP, #RIGHT, \ 134fa9e4066Sahrens (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ 135fa9e4066Sahrens __assert(__buf, __FILE__, __LINE__); \ 136fa9e4066Sahrens } \ 137fa9e4066Sahrens _NOTE(CONSTCOND) } while (0) 138fa9e4066Sahrens /* END CSTYLED */ 139fa9e4066Sahrens #endif /* lint */ 140fa9e4066Sahrens 141fa9e4066Sahrens #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 142fa9e4066Sahrens #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 143fa9e4066Sahrens #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 144fa9e4066Sahrens 145fa9e4066Sahrens #ifdef NDEBUG 146fa9e4066Sahrens #define ASSERT3S(x, y, z) ((void)0) 147fa9e4066Sahrens #define ASSERT3U(x, y, z) ((void)0) 148fa9e4066Sahrens #define ASSERT3P(x, y, z) ((void)0) 149fa9e4066Sahrens #else 150fa9e4066Sahrens #define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 151fa9e4066Sahrens #define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 152fa9e4066Sahrens #define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 153fa9e4066Sahrens #endif 154fa9e4066Sahrens 155fa9e4066Sahrens /* 1563d7072f8Seschrock * DTrace SDT probes have different signatures in userland than they do in 157fa9e4066Sahrens * kernel. If they're being used in kernel code, re-define them out of 158fa9e4066Sahrens * existence for their counterparts in libzpool. 159fa9e4066Sahrens */ 160fa9e4066Sahrens 161fa9e4066Sahrens #ifdef DTRACE_PROBE1 162fa9e4066Sahrens #undef DTRACE_PROBE1 163fa9e4066Sahrens #define DTRACE_PROBE1(a, b, c) ((void)0) 164fa9e4066Sahrens #endif /* DTRACE_PROBE1 */ 165fa9e4066Sahrens 166fa9e4066Sahrens #ifdef DTRACE_PROBE2 167fa9e4066Sahrens #undef DTRACE_PROBE2 168fa9e4066Sahrens #define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 169fa9e4066Sahrens #endif /* DTRACE_PROBE2 */ 170fa9e4066Sahrens 171c543ec06Sahrens #ifdef DTRACE_PROBE3 172c543ec06Sahrens #undef DTRACE_PROBE3 173c543ec06Sahrens #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) 174c543ec06Sahrens #endif /* DTRACE_PROBE3 */ 175c543ec06Sahrens 176faafa6e3Sahrens #ifdef DTRACE_PROBE4 177faafa6e3Sahrens #undef DTRACE_PROBE4 178faafa6e3Sahrens #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) 179faafa6e3Sahrens #endif /* DTRACE_PROBE4 */ 180faafa6e3Sahrens 181fa9e4066Sahrens /* 182fa9e4066Sahrens * Threads 183fa9e4066Sahrens */ 184fa9e4066Sahrens #define curthread ((void *)(uintptr_t)thr_self()) 185fa9e4066Sahrens 186fa9e4066Sahrens typedef struct kthread kthread_t; 187fa9e4066Sahrens 188fa9e4066Sahrens #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 189fa9e4066Sahrens zk_thread_create(func, arg) 1905ad82045Snd #define thread_exit() thr_exit(NULL) 191fa9e4066Sahrens 192fa9e4066Sahrens extern kthread_t *zk_thread_create(void (*func)(), void *arg); 193fa9e4066Sahrens 194fa9e4066Sahrens #define issig(why) (FALSE) 195fa9e4066Sahrens #define ISSIG(thr, why) (FALSE) 196fa9e4066Sahrens 197fa9e4066Sahrens /* 198fa9e4066Sahrens * Mutexes 199fa9e4066Sahrens */ 200fa9e4066Sahrens typedef struct kmutex { 201fa9e4066Sahrens void *m_owner; 202fa9e4066Sahrens mutex_t m_lock; 203fa9e4066Sahrens } kmutex_t; 204fa9e4066Sahrens 205fa9e4066Sahrens #define MUTEX_DEFAULT USYNC_THREAD 206fa9e4066Sahrens #undef MUTEX_HELD 207fa9e4066Sahrens #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) 208fa9e4066Sahrens 209fa9e4066Sahrens /* 210fa9e4066Sahrens * Argh -- we have to get cheesy here because the kernel and userland 211fa9e4066Sahrens * have different signatures for the same routine. 212fa9e4066Sahrens */ 213fa9e4066Sahrens extern int _mutex_init(mutex_t *mp, int type, void *arg); 214fa9e4066Sahrens extern int _mutex_destroy(mutex_t *mp); 215fa9e4066Sahrens 216fa9e4066Sahrens #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 217fa9e4066Sahrens #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 218fa9e4066Sahrens 219fa9e4066Sahrens extern void zmutex_init(kmutex_t *mp); 220fa9e4066Sahrens extern void zmutex_destroy(kmutex_t *mp); 221fa9e4066Sahrens extern void mutex_enter(kmutex_t *mp); 222fa9e4066Sahrens extern void mutex_exit(kmutex_t *mp); 223fa9e4066Sahrens extern int mutex_tryenter(kmutex_t *mp); 224fa9e4066Sahrens extern void *mutex_owner(kmutex_t *mp); 225fa9e4066Sahrens 226fa9e4066Sahrens /* 227fa9e4066Sahrens * RW locks 228fa9e4066Sahrens */ 229fa9e4066Sahrens typedef struct krwlock { 230fa9e4066Sahrens void *rw_owner; 231fa9e4066Sahrens rwlock_t rw_lock; 232fa9e4066Sahrens } krwlock_t; 233fa9e4066Sahrens 234fa9e4066Sahrens typedef int krw_t; 235fa9e4066Sahrens 236fa9e4066Sahrens #define RW_READER 0 237fa9e4066Sahrens #define RW_WRITER 1 238fa9e4066Sahrens #define RW_DEFAULT USYNC_THREAD 239fa9e4066Sahrens 240fa9e4066Sahrens #undef RW_READ_HELD 241fa9e4066Sahrens #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) 242fa9e4066Sahrens 243fa9e4066Sahrens #undef RW_WRITE_HELD 244fa9e4066Sahrens #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) 245fa9e4066Sahrens 246fa9e4066Sahrens extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 247fa9e4066Sahrens extern void rw_destroy(krwlock_t *rwlp); 248fa9e4066Sahrens extern void rw_enter(krwlock_t *rwlp, krw_t rw); 249fa9e4066Sahrens extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 250fa9e4066Sahrens extern int rw_tryupgrade(krwlock_t *rwlp); 251fa9e4066Sahrens extern void rw_exit(krwlock_t *rwlp); 252fa9e4066Sahrens #define rw_downgrade(rwlp) do { } while (0) 253fa9e4066Sahrens 254*ecd6cf80Smarks extern uid_t crgetuid(cred_t *cr); 255*ecd6cf80Smarks extern gid_t crgetgid(cred_t *cr); 256*ecd6cf80Smarks extern int crgetngroups(cred_t *cr); 257*ecd6cf80Smarks extern gid_t *crgetgroups(cred_t *cr); 258*ecd6cf80Smarks 259fa9e4066Sahrens /* 260fa9e4066Sahrens * Condition variables 261fa9e4066Sahrens */ 262fa9e4066Sahrens typedef cond_t kcondvar_t; 263fa9e4066Sahrens 264fa9e4066Sahrens #define CV_DEFAULT USYNC_THREAD 265fa9e4066Sahrens 266fa9e4066Sahrens extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 267fa9e4066Sahrens extern void cv_destroy(kcondvar_t *cv); 268fa9e4066Sahrens extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 269fa9e4066Sahrens extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 270fa9e4066Sahrens extern void cv_signal(kcondvar_t *cv); 271fa9e4066Sahrens extern void cv_broadcast(kcondvar_t *cv); 272fa9e4066Sahrens 27344cb6abcSbmc /* 27444cb6abcSbmc * kstat creation, installation and deletion 27544cb6abcSbmc */ 27644cb6abcSbmc extern kstat_t *kstat_create(char *, int, 27744cb6abcSbmc char *, char *, uchar_t, ulong_t, uchar_t); 27844cb6abcSbmc extern void kstat_install(kstat_t *); 27944cb6abcSbmc extern void kstat_delete(kstat_t *); 28044cb6abcSbmc 281fa9e4066Sahrens /* 282fa9e4066Sahrens * Kernel memory 283fa9e4066Sahrens */ 284fa9e4066Sahrens #define KM_SLEEP UMEM_NOFAIL 285fa9e4066Sahrens #define KM_NOSLEEP UMEM_DEFAULT 286a0965f35Sbonwick #define KMC_NODEBUG UMC_NODEBUG 287fa9e4066Sahrens #define kmem_alloc(_s, _f) umem_alloc(_s, _f) 288fa9e4066Sahrens #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 289fa9e4066Sahrens #define kmem_free(_b, _s) umem_free(_b, _s) 290fa9e4066Sahrens #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 291fa9e4066Sahrens umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 292fa9e4066Sahrens #define kmem_cache_destroy(_c) umem_cache_destroy(_c) 293fa9e4066Sahrens #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 294fa9e4066Sahrens #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 295fa9e4066Sahrens #define kmem_debugging() 0 296fa9e4066Sahrens #define kmem_cache_reap_now(c) 297fa9e4066Sahrens 298fa9e4066Sahrens typedef umem_cache_t kmem_cache_t; 299fa9e4066Sahrens 300fa9e4066Sahrens /* 301fa9e4066Sahrens * Task queues 302fa9e4066Sahrens */ 303fa9e4066Sahrens typedef struct taskq taskq_t; 304fa9e4066Sahrens typedef uintptr_t taskqid_t; 305fa9e4066Sahrens typedef void (task_func_t)(void *); 306fa9e4066Sahrens 307fa9e4066Sahrens #define TASKQ_PREPOPULATE 0x0001 308fa9e4066Sahrens #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 309fa9e4066Sahrens #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 310fa9e4066Sahrens 311fa9e4066Sahrens #define TQ_SLEEP KM_SLEEP /* Can block for memory */ 312fa9e4066Sahrens #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 313fa9e4066Sahrens #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 314fa9e4066Sahrens 315fa9e4066Sahrens extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 316fa9e4066Sahrens extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 317fa9e4066Sahrens extern void taskq_destroy(taskq_t *); 318fa9e4066Sahrens extern void taskq_wait(taskq_t *); 319fa9e4066Sahrens extern int taskq_member(taskq_t *, void *); 320fa9e4066Sahrens 321fa9e4066Sahrens /* 322fa9e4066Sahrens * vnodes 323fa9e4066Sahrens */ 324fa9e4066Sahrens typedef struct vnode { 325fa9e4066Sahrens uint64_t v_size; 326fa9e4066Sahrens int v_fd; 327fa9e4066Sahrens char *v_path; 328fa9e4066Sahrens } vnode_t; 329fa9e4066Sahrens 330fa9e4066Sahrens typedef struct vattr { 331fa9e4066Sahrens uint_t va_mask; /* bit-mask of attributes */ 332fa9e4066Sahrens u_offset_t va_size; /* file size in bytes */ 333fa9e4066Sahrens } vattr_t; 334fa9e4066Sahrens 335fa9e4066Sahrens #define AT_TYPE 0x0001 336fa9e4066Sahrens #define AT_MODE 0x0002 337fa9e4066Sahrens #define AT_UID 0x0004 338fa9e4066Sahrens #define AT_GID 0x0008 339fa9e4066Sahrens #define AT_FSID 0x0010 340fa9e4066Sahrens #define AT_NODEID 0x0020 341fa9e4066Sahrens #define AT_NLINK 0x0040 342fa9e4066Sahrens #define AT_SIZE 0x0080 343fa9e4066Sahrens #define AT_ATIME 0x0100 344fa9e4066Sahrens #define AT_MTIME 0x0200 345fa9e4066Sahrens #define AT_CTIME 0x0400 346fa9e4066Sahrens #define AT_RDEV 0x0800 347fa9e4066Sahrens #define AT_BLKSIZE 0x1000 348fa9e4066Sahrens #define AT_NBLOCKS 0x2000 349fa9e4066Sahrens #define AT_SEQ 0x8000 350fa9e4066Sahrens 351fa9e4066Sahrens #define CRCREAT 0 352fa9e4066Sahrens 353fa9e4066Sahrens #define VOP_CLOSE(vp, f, c, o, cr) 0 354fa9e4066Sahrens #define VOP_PUTPAGE(vp, of, sz, fl, cr) 0 355fa9e4066Sahrens #define VOP_GETATTR(vp, vap, fl, cr) ((vap)->va_size = (vp)->v_size, 0) 356fa9e4066Sahrens 357fa9e4066Sahrens #define VOP_FSYNC(vp, f, cr) fsync((vp)->v_fd) 358fa9e4066Sahrens 359fa9e4066Sahrens #define VN_RELE(vp) vn_close(vp) 360fa9e4066Sahrens 361fa9e4066Sahrens extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 362fa9e4066Sahrens int x2, int x3); 363fa9e4066Sahrens extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 364fa9e4066Sahrens int x2, int x3, vnode_t *vp); 365fa9e4066Sahrens extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 366fa9e4066Sahrens offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 367fa9e4066Sahrens extern void vn_close(vnode_t *vp); 368fa9e4066Sahrens 369fa9e4066Sahrens #define vn_remove(path, x1, x2) remove(path) 370fa9e4066Sahrens #define vn_rename(from, to, seg) rename((from), (to)) 3710373e76bSbonwick #define vn_is_readonly(vp) B_FALSE 372fa9e4066Sahrens 373fa9e4066Sahrens extern vnode_t *rootdir; 374fa9e4066Sahrens 375fa9e4066Sahrens #include <sys/file.h> /* for FREAD, FWRITE, etc */ 376fa9e4066Sahrens 377fa9e4066Sahrens /* 378fa9e4066Sahrens * Random stuff 379fa9e4066Sahrens */ 380fa9e4066Sahrens #define lbolt (gethrtime() >> 23) 381fa9e4066Sahrens #define lbolt64 (gethrtime() >> 23) 382fa9e4066Sahrens #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 383fa9e4066Sahrens 384fa9e4066Sahrens extern void delay(clock_t ticks); 385fa9e4066Sahrens 386fa9e4066Sahrens #define gethrestime_sec() time(NULL) 387fa9e4066Sahrens 388fa9e4066Sahrens #define max_ncpus 64 389fa9e4066Sahrens 390fa9e4066Sahrens #define minclsyspri 60 391fa9e4066Sahrens #define maxclsyspri 99 392fa9e4066Sahrens 393fa9e4066Sahrens #define CPU_SEQID (thr_self() & (max_ncpus - 1)) 394fa9e4066Sahrens 395fa9e4066Sahrens #define kcred NULL 396fa9e4066Sahrens #define CRED() NULL 397fa9e4066Sahrens 398fa9e4066Sahrens extern uint64_t physmem; 399fa9e4066Sahrens 400fa9e4066Sahrens extern int highbit(ulong_t i); 401fa9e4066Sahrens extern int random_get_bytes(uint8_t *ptr, size_t len); 402fa9e4066Sahrens extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 403fa9e4066Sahrens 404fa9e4066Sahrens extern void kernel_init(int); 405fa9e4066Sahrens extern void kernel_fini(void); 406fa9e4066Sahrens 407fa9e4066Sahrens struct spa; 408fa9e4066Sahrens extern void nicenum(uint64_t num, char *buf); 409fa9e4066Sahrens extern void show_pool_stats(struct spa *); 410fa9e4066Sahrens 411fa9e4066Sahrens typedef struct callb_cpr { 412fa9e4066Sahrens kmutex_t *cc_lockp; 413fa9e4066Sahrens } callb_cpr_t; 414fa9e4066Sahrens 415fa9e4066Sahrens #define CALLB_CPR_INIT(cp, lockp, func, name) { \ 416fa9e4066Sahrens (cp)->cc_lockp = lockp; \ 417fa9e4066Sahrens } 418fa9e4066Sahrens 419fa9e4066Sahrens #define CALLB_CPR_SAFE_BEGIN(cp) { \ 420fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 421fa9e4066Sahrens } 422fa9e4066Sahrens 423fa9e4066Sahrens #define CALLB_CPR_SAFE_END(cp, lockp) { \ 424fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 425fa9e4066Sahrens } 426fa9e4066Sahrens 427fa9e4066Sahrens #define CALLB_CPR_EXIT(cp) { \ 428fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 429fa9e4066Sahrens mutex_exit((cp)->cc_lockp); \ 430fa9e4066Sahrens } 431fa9e4066Sahrens 432fa9e4066Sahrens #define zone_dataset_visible(x, y) (1) 433fa9e4066Sahrens #define INGLOBALZONE(z) (1) 434fa9e4066Sahrens 43595173954Sek /* 43695173954Sek * Hostname information 43795173954Sek */ 43895173954Sek extern char hw_serial[]; 43995173954Sek extern int ddi_strtoul(const char *str, char **nptr, int base, 44095173954Sek unsigned long *result); 44195173954Sek 442ea8dc4b6Seschrock /* ZFS Boot Related stuff. */ 443ea8dc4b6Seschrock 444ea8dc4b6Seschrock struct _buf { 445ea8dc4b6Seschrock intptr_t _fd; 446ea8dc4b6Seschrock }; 447ea8dc4b6Seschrock 448ea8dc4b6Seschrock struct bootstat { 449ea8dc4b6Seschrock uint64_t st_size; 450ea8dc4b6Seschrock }; 451ea8dc4b6Seschrock 452ea8dc4b6Seschrock extern struct _buf *kobj_open_file(char *name); 453ea8dc4b6Seschrock extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 454ea8dc4b6Seschrock unsigned off); 455ea8dc4b6Seschrock extern void kobj_close_file(struct _buf *file); 456b1b8ab34Slling extern int kobj_get_filesize(struct _buf *file, uint64_t *size); 457*ecd6cf80Smarks extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 458*ecd6cf80Smarks extern int zfs_secpolicy_rename_perms(const char *from, const char *to, 459*ecd6cf80Smarks cred_t *cr); 460*ecd6cf80Smarks extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 461*ecd6cf80Smarks extern zoneid_t getzoneid(void); 462ea8dc4b6Seschrock 463f0547164Slling #ifdef __cplusplus 464f0547164Slling } 465f0547164Slling #endif 466f0547164Slling 467fa9e4066Sahrens #endif /* _SYS_ZFS_CONTEXT_H */ 468