zfs_context.h revision 219089
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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25#ifndef _SYS_ZFS_CONTEXT_H 26#define _SYS_ZFS_CONTEXT_H 27 28#ifdef __cplusplus 29extern "C" { 30#endif 31 32#define _SYS_MUTEX_H 33#define _SYS_RWLOCK_H 34#define _SYS_CONDVAR_H 35#define _SYS_SYSTM_H 36#define _SYS_DEBUG_H 37#define _SYS_T_LOCK_H 38#define _SYS_VNODE_H 39#define _SYS_VFS_H 40#define _SYS_SUNDDI_H 41#define _SYS_CALLB_H 42#define _SYS_SCHED_H_ 43 44#include <solaris.h> 45#include <stdio.h> 46#include <stdlib.h> 47#include <stddef.h> 48#include <stdarg.h> 49#include <fcntl.h> 50#include <unistd.h> 51#include <errno.h> 52#include <string.h> 53#include <strings.h> 54#include <thread.h> 55#include <assert.h> 56#include <limits.h> 57#include <dirent.h> 58#include <time.h> 59#include <math.h> 60#include <umem.h> 61#include <inttypes.h> 62#include <fsshare.h> 63#include <sys/note.h> 64#include <sys/types.h> 65#include <sys/cred.h> 66#include <sys/atomic.h> 67#include <sys/sysmacros.h> 68#include <sys/bitmap.h> 69#include <sys/resource.h> 70#include <sys/byteorder.h> 71#include <sys/list.h> 72#include <sys/time.h> 73#include <sys/uio.h> 74#include <sys/mntent.h> 75#include <sys/mnttab.h> 76#include <sys/zfs_debug.h> 77#include <sys/debug.h> 78#include <sys/sdt.h> 79#include <sys/kstat.h> 80#include <sys/u8_textprep.h> 81#include <sys/kernel.h> 82#include <sys/disk.h> 83#include <sys/sysevent.h> 84#include <sys/sysevent/eventdefs.h> 85#include <sys/sysevent/dev.h> 86#include <machine/atomic.h> 87 88#define ZFS_EXPORTS_PATH "/etc/zfs/exports" 89 90/* 91 * Debugging 92 */ 93 94/* 95 * Note that we are not using the debugging levels. 96 */ 97 98#define CE_CONT 0 /* continuation */ 99#define CE_NOTE 1 /* notice */ 100#define CE_WARN 2 /* warning */ 101#define CE_PANIC 3 /* panic */ 102#define CE_IGNORE 4 /* print nothing */ 103 104/* 105 * ZFS debugging 106 */ 107 108#define ZFS_LOG(...) do { } while (0) 109 110typedef u_longlong_t rlim64_t; 111#define RLIM64_INFINITY ((rlim64_t)-3) 112 113#ifdef ZFS_DEBUG 114extern void dprintf_setup(int *argc, char **argv); 115#endif /* ZFS_DEBUG */ 116 117extern void cmn_err(int, const char *, ...); 118extern void vcmn_err(int, const char *, __va_list); 119extern void panic(const char *, ...); 120extern void vpanic(const char *, __va_list); 121 122#define fm_panic panic 123 124extern int aok; 125 126/* This definition is copied from assert.h. */ 127#if defined(__STDC__) 128#if __STDC_VERSION__ - 0 >= 199901L 129#define zverify(EX) (void)((EX) || (aok) || \ 130 (__assert(#EX, __FILE__, __LINE__), 0)) 131#else 132#define zverify(EX) (void)((EX) || (aok) || \ 133 (__assert(#EX, __FILE__, __LINE__), 0)) 134#endif /* __STDC_VERSION__ - 0 >= 199901L */ 135#else 136#define zverify(EX) (void)((EX) || (aok) || \ 137 (_assert("EX", __FILE__, __LINE__), 0)) 138#endif /* __STDC__ */ 139 140 141#define VERIFY zverify 142#define ASSERT zverify 143#undef assert 144#define assert zverify 145 146extern void __assert(const char *, const char *, int); 147 148#ifdef lint 149#define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) 150#else 151/* BEGIN CSTYLED */ 152#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 153 const TYPE __left = (TYPE)(LEFT); \ 154 const TYPE __right = (TYPE)(RIGHT); \ 155 if (!(__left OP __right) && (!aok)) { \ 156 char *__buf = alloca(256); \ 157 (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ 158 #LEFT, #OP, #RIGHT, \ 159 (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ 160 __assert(__buf, __FILE__, __LINE__); \ 161 } \ 162_NOTE(CONSTCOND) } while (0) 163/* END CSTYLED */ 164#endif /* lint */ 165 166#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 167#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 168#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 169 170#ifdef NDEBUG 171#define ASSERT3S(x, y, z) ((void)0) 172#define ASSERT3U(x, y, z) ((void)0) 173#define ASSERT3P(x, y, z) ((void)0) 174#else 175#define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 176#define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 177#define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 178#endif 179 180/* 181 * DTrace SDT probes have different signatures in userland than they do in 182 * kernel. If they're being used in kernel code, re-define them out of 183 * existence for their counterparts in libzpool. 184 */ 185 186#ifdef DTRACE_PROBE 187#undef DTRACE_PROBE 188#define DTRACE_PROBE(a) ((void)0) 189#endif /* DTRACE_PROBE */ 190 191#ifdef DTRACE_PROBE1 192#undef DTRACE_PROBE1 193#define DTRACE_PROBE1(a, b, c) ((void)0) 194#endif /* DTRACE_PROBE1 */ 195 196#ifdef DTRACE_PROBE2 197#undef DTRACE_PROBE2 198#define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 199#endif /* DTRACE_PROBE2 */ 200 201#ifdef DTRACE_PROBE3 202#undef DTRACE_PROBE3 203#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) 204#endif /* DTRACE_PROBE3 */ 205 206#ifdef DTRACE_PROBE4 207#undef DTRACE_PROBE4 208#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) 209#endif /* DTRACE_PROBE4 */ 210 211/* 212 * Threads 213 */ 214#define curthread ((void *)(uintptr_t)thr_self()) 215 216typedef struct kthread kthread_t; 217 218#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 219 zk_thread_create(func, arg) 220#define thread_exit() thr_exit(NULL) 221#define thread_join(t) panic("libzpool cannot join threads") 222 223#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) 224 225/* in libzpool, p0 exists only to have its address taken */ 226struct proc { 227 uintptr_t this_is_never_used_dont_dereference_it; 228}; 229 230extern struct proc p0; 231 232#define PS_NONE -1 233 234extern kthread_t *zk_thread_create(void (*func)(), void *arg); 235 236#define issig(why) (FALSE) 237#define ISSIG(thr, why) (FALSE) 238 239/* 240 * Mutexes 241 */ 242typedef struct kmutex { 243 void *m_owner; 244 boolean_t initialized; 245 mutex_t m_lock; 246} kmutex_t; 247 248#define MUTEX_DEFAULT USYNC_THREAD 249#undef MUTEX_HELD 250#undef MUTEX_NOT_HELD 251#define MUTEX_HELD(m) ((m)->m_owner == curthread) 252#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m)) 253#define _mutex_held(m) pthread_mutex_isowned_np(m) 254 255/* 256 * Argh -- we have to get cheesy here because the kernel and userland 257 * have different signatures for the same routine. 258 */ 259//extern int _mutex_init(mutex_t *mp, int type, void *arg); 260//extern int _mutex_destroy(mutex_t *mp); 261//extern int _mutex_owned(mutex_t *mp); 262 263#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 264#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 265#define mutex_owned(mp) zmutex_owned((kmutex_t *)(mp)) 266 267extern void zmutex_init(kmutex_t *mp); 268extern void zmutex_destroy(kmutex_t *mp); 269extern int zmutex_owned(kmutex_t *mp); 270extern void mutex_enter(kmutex_t *mp); 271extern void mutex_exit(kmutex_t *mp); 272extern int mutex_tryenter(kmutex_t *mp); 273extern void *mutex_owner(kmutex_t *mp); 274 275/* 276 * RW locks 277 */ 278typedef struct krwlock { 279 int rw_count; 280 void *rw_owner; 281 boolean_t initialized; 282 rwlock_t rw_lock; 283} krwlock_t; 284 285typedef int krw_t; 286 287#define RW_READER 0 288#define RW_WRITER 1 289#define RW_DEFAULT USYNC_THREAD 290 291#undef RW_READ_HELD 292#define RW_READ_HELD(x) ((x)->rw_owner == NULL && (x)->rw_count > 0) 293 294#undef RW_WRITE_HELD 295#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread) 296#define RW_LOCK_HELD(x) rw_lock_held(x) 297 298extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 299extern void rw_destroy(krwlock_t *rwlp); 300extern void rw_enter(krwlock_t *rwlp, krw_t rw); 301extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 302extern int rw_tryupgrade(krwlock_t *rwlp); 303extern void rw_exit(krwlock_t *rwlp); 304extern int rw_lock_held(krwlock_t *rwlp); 305#define rw_downgrade(rwlp) do { } while (0) 306 307extern uid_t crgetuid(cred_t *cr); 308extern gid_t crgetgid(cred_t *cr); 309extern int crgetngroups(cred_t *cr); 310extern gid_t *crgetgroups(cred_t *cr); 311 312/* 313 * Condition variables 314 */ 315typedef cond_t kcondvar_t; 316 317#define CV_DEFAULT USYNC_THREAD 318 319extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 320extern void cv_destroy(kcondvar_t *cv); 321extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 322extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 323extern void cv_signal(kcondvar_t *cv); 324extern void cv_broadcast(kcondvar_t *cv); 325 326/* 327 * Kernel memory 328 */ 329#define KM_SLEEP UMEM_NOFAIL 330#define KM_PUSHPAGE KM_SLEEP 331#define KM_NOSLEEP UMEM_DEFAULT 332#define KMC_NODEBUG UMC_NODEBUG 333#define KMC_NOTOUCH 0 /* not needed for userland caches */ 334#define kmem_alloc(_s, _f) umem_alloc(_s, _f) 335#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 336#define kmem_free(_b, _s) umem_free(_b, _s) 337#define kmem_size() (physmem * PAGESIZE) 338#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 339 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 340#define kmem_cache_destroy(_c) umem_cache_destroy(_c) 341#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 342#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 343#define kmem_debugging() 0 344#define kmem_cache_reap_now(_c) /* nothing */ 345#define kmem_cache_set_move(_c, _cb) /* nothing */ 346#define POINTER_INVALIDATE(_pp) /* nothing */ 347#define POINTER_IS_VALID(_p) 0 348 349typedef umem_cache_t kmem_cache_t; 350 351typedef enum kmem_cbrc { 352 KMEM_CBRC_YES, 353 KMEM_CBRC_NO, 354 KMEM_CBRC_LATER, 355 KMEM_CBRC_DONT_NEED, 356 KMEM_CBRC_DONT_KNOW 357} kmem_cbrc_t; 358 359/* 360 * Task queues 361 */ 362typedef struct taskq taskq_t; 363typedef uintptr_t taskqid_t; 364typedef void (task_func_t)(void *); 365 366#define TASKQ_PREPOPULATE 0x0001 367#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 368#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 369#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ 370#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ 371 372#define TQ_SLEEP KM_SLEEP /* Can block for memory */ 373#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 374#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 375#define TQ_FRONT 0x08 /* Queue in front */ 376 377extern taskq_t *system_taskq; 378 379extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 380#define taskq_create_proc(a, b, c, d, e, p, f) \ 381 (taskq_create(a, b, c, d, e, f)) 382#define taskq_create_sysdc(a, b, d, e, p, dc, f) \ 383 (taskq_create(a, b, maxclsyspri, d, e, f)) 384extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 385extern void taskq_destroy(taskq_t *); 386extern void taskq_wait(taskq_t *); 387extern int taskq_member(taskq_t *, void *); 388extern void system_taskq_init(void); 389extern void system_taskq_fini(void); 390 391#define taskq_dispatch_safe(tq, func, arg, flags, task) \ 392 taskq_dispatch((tq), (func), (arg), (flags)) 393 394#define XVA_MAPSIZE 3 395#define XVA_MAGIC 0x78766174 396 397/* 398 * vnodes 399 */ 400typedef struct vnode { 401 uint64_t v_size; 402 int v_fd; 403 char *v_path; 404} vnode_t; 405 406#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ 407 408typedef struct xoptattr { 409 timestruc_t xoa_createtime; /* Create time of file */ 410 uint8_t xoa_archive; 411 uint8_t xoa_system; 412 uint8_t xoa_readonly; 413 uint8_t xoa_hidden; 414 uint8_t xoa_nounlink; 415 uint8_t xoa_immutable; 416 uint8_t xoa_appendonly; 417 uint8_t xoa_nodump; 418 uint8_t xoa_settable; 419 uint8_t xoa_opaque; 420 uint8_t xoa_av_quarantined; 421 uint8_t xoa_av_modified; 422 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; 423 uint8_t xoa_reparse; 424 uint8_t xoa_offline; 425 uint8_t xoa_sparse; 426} xoptattr_t; 427 428typedef struct vattr { 429 uint_t va_mask; /* bit-mask of attributes */ 430 u_offset_t va_size; /* file size in bytes */ 431} vattr_t; 432 433 434typedef struct xvattr { 435 vattr_t xva_vattr; /* Embedded vattr structure */ 436 uint32_t xva_magic; /* Magic Number */ 437 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ 438 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ 439 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ 440 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ 441 xoptattr_t xva_xoptattrs; /* Optional attributes */ 442} xvattr_t; 443 444typedef struct vsecattr { 445 uint_t vsa_mask; /* See below */ 446 int vsa_aclcnt; /* ACL entry count */ 447 void *vsa_aclentp; /* pointer to ACL entries */ 448 int vsa_dfaclcnt; /* default ACL entry count */ 449 void *vsa_dfaclentp; /* pointer to default ACL entries */ 450 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ 451} vsecattr_t; 452 453#define AT_TYPE 0x00001 454#define AT_MODE 0x00002 455#define AT_UID 0x00004 456#define AT_GID 0x00008 457#define AT_FSID 0x00010 458#define AT_NODEID 0x00020 459#define AT_NLINK 0x00040 460#define AT_SIZE 0x00080 461#define AT_ATIME 0x00100 462#define AT_MTIME 0x00200 463#define AT_CTIME 0x00400 464#define AT_RDEV 0x00800 465#define AT_BLKSIZE 0x01000 466#define AT_NBLOCKS 0x02000 467#define AT_SEQ 0x08000 468#define AT_XVATTR 0x10000 469 470#define CRCREAT 0 471 472extern int fop_getattr(vnode_t *vp, vattr_t *vap); 473 474#define VOP_CLOSE(vp, f, c, o, cr, ct) 0 475#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 476#define VOP_GETATTR(vp, vap, cr) fop_getattr((vp), (vap)); 477 478#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) 479 480#define VN_RELE(vp) vn_close(vp, 0, NULL, NULL) 481#define VN_RELE_ASYNC(vp, taskq) vn_close(vp, 0, NULL, NULL) 482 483#define vn_lock(vp, type) 484#define VOP_UNLOCK(vp, type) 485#ifdef VFS_LOCK_GIANT 486#undef VFS_LOCK_GIANT 487#endif 488#define VFS_LOCK_GIANT(mp) 0 489#ifdef VFS_UNLOCK_GIANT 490#undef VFS_UNLOCK_GIANT 491#endif 492#define VFS_UNLOCK_GIANT(vfslocked) 493 494extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 495 int x2, int x3); 496extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 497 int x2, int x3, vnode_t *vp, int fd); 498extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 499 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 500extern void vn_close(vnode_t *vp, int openflag, cred_t *cr, kthread_t *td); 501 502#define vn_remove(path, x1, x2) remove(path) 503#define vn_rename(from, to, seg) rename((from), (to)) 504#define vn_is_readonly(vp) B_FALSE 505 506extern vnode_t *rootdir; 507 508#include <sys/file.h> /* for FREAD, FWRITE, etc */ 509#define FTRUNC O_TRUNC 510 511/* 512 * Random stuff 513 */ 514#define ddi_get_lbolt() (gethrtime() >> 23) 515#define ddi_get_lbolt64() (gethrtime() >> 23) 516#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 517 518extern void delay(clock_t ticks); 519 520#define gethrestime_sec() time(NULL) 521#define gethrestime(t) \ 522 do {\ 523 (t)->tv_sec = gethrestime_sec();\ 524 (t)->tv_nsec = 0;\ 525 } while (0); 526 527#define max_ncpus 64 528 529#define minclsyspri 60 530#define maxclsyspri 99 531 532#define CPU_SEQID (thr_self() & (max_ncpus - 1)) 533 534#define kcred NULL 535#define CRED() NULL 536 537#ifndef ptob 538#define ptob(x) ((x) * PAGESIZE) 539#endif 540 541extern uint64_t physmem; 542 543extern int highbit(ulong_t i); 544extern int random_get_bytes(uint8_t *ptr, size_t len); 545extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 546 547extern void kernel_init(int); 548extern void kernel_fini(void); 549 550struct spa; 551extern void nicenum(uint64_t num, char *buf); 552extern void show_pool_stats(struct spa *); 553 554typedef struct callb_cpr { 555 kmutex_t *cc_lockp; 556} callb_cpr_t; 557 558#define CALLB_CPR_INIT(cp, lockp, func, name) { \ 559 (cp)->cc_lockp = lockp; \ 560} 561 562#define CALLB_CPR_SAFE_BEGIN(cp) { \ 563 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 564} 565 566#define CALLB_CPR_SAFE_END(cp, lockp) { \ 567 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 568} 569 570#define CALLB_CPR_EXIT(cp) { \ 571 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 572 mutex_exit((cp)->cc_lockp); \ 573} 574 575#define zone_dataset_visible(x, y) (1) 576#define INGLOBALZONE(z) (1) 577 578extern char *kmem_asprintf(const char *fmt, ...); 579#define strfree(str) kmem_free((str), strlen(str)+1) 580 581/* 582 * Hostname information 583 */ 584extern struct utsname utsname; 585extern char hw_serial[]; /* for userland-emulated hostid access */ 586extern int ddi_strtoul(const char *str, char **nptr, int base, 587 unsigned long *result); 588 589extern int ddi_strtoull(const char *str, char **nptr, int base, 590 u_longlong_t *result); 591 592/* ZFS Boot Related stuff. */ 593 594struct _buf { 595 intptr_t _fd; 596}; 597 598struct bootstat { 599 uint64_t st_size; 600}; 601 602typedef struct ace_object { 603 uid_t a_who; 604 uint32_t a_access_mask; 605 uint16_t a_flags; 606 uint16_t a_type; 607 uint8_t a_obj_type[16]; 608 uint8_t a_inherit_obj_type[16]; 609} ace_object_t; 610 611 612#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 613#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 614#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 615#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 616 617extern struct _buf *kobj_open_file(char *name); 618extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 619 unsigned off); 620extern void kobj_close_file(struct _buf *file); 621extern int kobj_get_filesize(struct _buf *file, uint64_t *size); 622extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 623extern int zfs_secpolicy_rename_perms(const char *from, const char *to, 624 cred_t *cr); 625extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 626extern zoneid_t getzoneid(void); 627/* Random compatibility stuff. */ 628#define lbolt (gethrtime() >> 23) 629#define lbolt64 (gethrtime() >> 23) 630 631extern uint64_t physmem; 632 633#define gethrestime_sec() time(NULL) 634 635#define pwrite64(d, p, n, o) pwrite(d, p, n, o) 636#define readdir64(d) readdir(d) 637#define SIGPENDING(td) (0) 638#define root_mount_wait() do { } while (0) 639#define root_mounted() (1) 640 641struct file { 642 void *dummy; 643}; 644 645#define FCREAT O_CREAT 646#define FOFFMAX 0x0 647 648/* SID stuff */ 649typedef struct ksiddomain { 650 uint_t kd_ref; 651 uint_t kd_len; 652 char *kd_name; 653} ksiddomain_t; 654 655ksiddomain_t *ksid_lookupdomain(const char *); 656void ksiddomain_rele(ksiddomain_t *); 657 658typedef uint32_t idmap_rid_t; 659 660#define DDI_SLEEP KM_SLEEP 661#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) (0) 662 663#define SX_SYSINIT(name, lock, desc) 664 665#define SYSCTL_DECL(...) 666#define SYSCTL_NODE(...) 667#define SYSCTL_INT(...) 668#define SYSCTL_UINT(...) 669#define SYSCTL_ULONG(...) 670#define SYSCTL_QUAD(...) 671#define SYSCTL_UQUAD(...) 672#ifdef TUNABLE_INT 673#undef TUNABLE_INT 674#undef TUNABLE_ULONG 675#undef TUNABLE_QUAD 676#endif 677#define TUNABLE_INT(...) 678#define TUNABLE_ULONG(...) 679#define TUNABLE_QUAD(...) 680 681/* Errors */ 682 683#ifndef ERESTART 684#define ERESTART (-1) 685#endif 686 687#ifdef __cplusplus 688} 689#endif 690 691#endif /* _SYS_ZFS_CONTEXT_H */ 692