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.
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.
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]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 * Copyright (c) 2012, 2018 by Delphix. All rights reserved.
25 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
28 #ifndef _SYS_ZFS_CONTEXT_H
29 #define _SYS_ZFS_CONTEXT_H
37 #include <sys/types.h>
38 #include <sys/atomic.h>
39 #include <sys/sysmacros.h>
40 #include <sys/vmsystm.h>
41 #include <sys/condvar.h>
42 #include <sys/cmn_err.h>
44 #include <sys/kmem_cache.h>
46 #include <sys/taskq.h>
47 #include <sys/param.h>
49 #include <sys/debug.h>
50 #include <sys/random.h>
51 #include <sys/strings.h>
52 #include <sys/byteorder.h>
56 #include <sys/kstat.h>
57 #include <sys/zfs_debug.h>
58 #include <sys/sysevent.h>
59 #include <sys/sysevent/eventdefs.h>
60 #include <sys/zfs_delay.h>
61 #include <sys/sunddi.h>
62 #include <sys/ctype.h>
64 #include <sys/trace.h>
65 #include <sys/procfs_list.h>
67 #include <sys/zfs_context_os.h>
72 #define _SYS_CONDVAR_H
99 #include <sys/types.h>
100 #include <sys/cred.h>
101 #include <sys/sysmacros.h>
102 #include <sys/resource.h>
103 #include <sys/byteorder.h>
104 #include <sys/list.h>
107 #include <sys/zfs_debug.h>
108 #include <sys/kstat.h>
109 #include <sys/u8_textprep.h>
110 #include <sys/sysevent.h>
111 #include <sys/sysevent/eventdefs.h>
112 #include <sys/sunddi.h>
113 #include <sys/debug.h>
114 #include <sys/utsname.h>
115 #include <sys/trace_zfs.h>
117 #include <sys/zfs_context_os.h>
123 #define noinline __attribute__((noinline))
124 #define likely(x) __builtin_expect((x), 1)
125 #define unlikely(x) __builtin_expect((x), 0)
132 * Note that we are not using the debugging levels.
135 #define CE_CONT 0 /* continuation */
136 #define CE_NOTE 1 /* notice */
137 #define CE_WARN 2 /* warning */
138 #define CE_PANIC 3 /* panic */
139 #define CE_IGNORE 4 /* print nothing */
145 extern void dprintf_setup(int *argc, char **argv);
147 extern void cmn_err(int, const char *, ...);
148 extern void vcmn_err(int, const char *, va_list);
149 extern void panic(const char *, ...) __NORETURN;
150 extern void vpanic(const char *, va_list) __NORETURN;
152 #define fm_panic panic
157 * DTrace SDT probes have different signatures in userland than they do in
158 * the kernel. If they're being used in kernel code, re-define them out of
159 * existence for their counterparts in libzpool.
161 * Here's an example of how to use the set-error probes in userland:
162 * zfs$target:::set-error /arg0 == EBUSY/ {stack();}
164 * Here's an example of how to use DTRACE_PROBE probes in userland:
165 * If there is a probe declared as follows:
166 * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
167 * Then you can use it as follows:
168 * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
169 * {printf("%u %p\n", arg1, arg2);}
174 #endif /* DTRACE_PROBE */
175 #define DTRACE_PROBE(a)
179 #endif /* DTRACE_PROBE1 */
180 #define DTRACE_PROBE1(a, b, c)
184 #endif /* DTRACE_PROBE2 */
185 #define DTRACE_PROBE2(a, b, c, d, e)
189 #endif /* DTRACE_PROBE3 */
190 #define DTRACE_PROBE3(a, b, c, d, e, f, g)
194 #endif /* DTRACE_PROBE4 */
195 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i)
200 typedef struct zfs_kernel_param {
201 const char *name; /* unused stub */
202 } zfs_kernel_param_t;
204 #define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc)
205 #define ZFS_MODULE_PARAM_ARGS void
206 #define ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, \
212 typedef pthread_t kthread_t;
214 #define TS_RUN 0x00000002
215 #define TS_JOINABLE 0x00000004
217 #define curthread ((void *)(uintptr_t)pthread_self())
218 #define kpreempt(x) yield()
219 #define getcomm() "unknown"
221 #define thread_create_named(name, stk, stksize, func, arg, len, \
223 zk_thread_create(func, arg, stksize, state)
224 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
225 zk_thread_create(func, arg, stksize, state)
226 #define thread_exit() pthread_exit(NULL)
227 #define thread_join(t) pthread_join((pthread_t)(t), NULL)
229 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
231 /* in libzpool, p0 exists only to have its address taken */
232 typedef struct proc {
233 uintptr_t this_is_never_used_dont_dereference_it;
236 extern struct proc p0;
237 #define curproc (&p0)
241 extern kthread_t *zk_thread_create(void (*func)(void *), void *arg,
242 size_t stksize, int state);
244 #define issig(why) (FALSE)
245 #define ISSIG(thr, why) (FALSE)
247 #define kpreempt_disable() ((void)0)
248 #define kpreempt_enable() ((void)0)
249 #define cond_resched() sched_yield()
254 typedef struct kmutex {
255 pthread_mutex_t m_lock;
259 #define MUTEX_DEFAULT 0
260 #define MUTEX_NOLOCKDEP MUTEX_DEFAULT
261 #define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self())
262 #define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp)
264 extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie);
265 extern void mutex_destroy(kmutex_t *mp);
266 extern void mutex_enter(kmutex_t *mp);
267 extern void mutex_exit(kmutex_t *mp);
268 extern int mutex_tryenter(kmutex_t *mp);
270 #define NESTED_SINGLE 1
271 #define mutex_enter_nested(mp, class) mutex_enter(mp)
275 typedef struct krwlock {
276 pthread_rwlock_t rw_lock;
285 #define RW_DEFAULT RW_READER
286 #define RW_NOLOCKDEP RW_READER
288 #define RW_READ_HELD(rw) ((rw)->rw_readers > 0)
289 #define RW_WRITE_HELD(rw) pthread_equal((rw)->rw_owner, pthread_self())
290 #define RW_LOCK_HELD(rw) (RW_READ_HELD(rw) || RW_WRITE_HELD(rw))
292 extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
293 extern void rw_destroy(krwlock_t *rwlp);
294 extern void rw_enter(krwlock_t *rwlp, krw_t rw);
295 extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
296 extern int rw_tryupgrade(krwlock_t *rwlp);
297 extern void rw_exit(krwlock_t *rwlp);
298 #define rw_downgrade(rwlp) do { } while (0)
303 extern uid_t crgetuid(cred_t *cr);
304 extern uid_t crgetruid(cred_t *cr);
305 extern gid_t crgetgid(cred_t *cr);
306 extern int crgetngroups(cred_t *cr);
307 extern gid_t *crgetgroups(cred_t *cr);
310 * Condition variables
312 typedef pthread_cond_t kcondvar_t;
315 #define CALLOUT_FLAG_ABSOLUTE 0x2
317 extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
318 extern void cv_destroy(kcondvar_t *cv);
319 extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
320 extern int cv_wait_sig(kcondvar_t *cv, kmutex_t *mp);
321 extern int cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
322 extern int cv_timedwait_hires(kcondvar_t *cvp, kmutex_t *mp, hrtime_t tim,
323 hrtime_t res, int flag);
324 extern void cv_signal(kcondvar_t *cv);
325 extern void cv_broadcast(kcondvar_t *cv);
327 #define cv_timedwait_io(cv, mp, at) cv_timedwait(cv, mp, at)
328 #define cv_timedwait_idle(cv, mp, at) cv_timedwait(cv, mp, at)
329 #define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at)
330 #define cv_wait_io(cv, mp) cv_wait(cv, mp)
331 #define cv_wait_idle(cv, mp) cv_wait(cv, mp)
332 #define cv_wait_io_sig(cv, mp) cv_wait_sig(cv, mp)
333 #define cv_timedwait_sig_hires(cv, mp, t, r, f) \
334 cv_timedwait_hires(cv, mp, t, r, f)
335 #define cv_timedwait_idle_hires(cv, mp, t, r, f) \
336 cv_timedwait_hires(cv, mp, t, r, f)
339 * Thread-specific data
341 #define tsd_get(k) pthread_getspecific(k)
342 #define tsd_set(k, v) pthread_setspecific(k, v)
343 #define tsd_create(kp, d) pthread_key_create((pthread_key_t *)kp, d)
344 #define tsd_destroy(kp) /* nothing */
346 typedef off_t loff_t;
350 * kstat creation, installation and deletion
352 extern kstat_t *kstat_create(const char *, int,
353 const char *, const char *, uchar_t, ulong_t, uchar_t);
354 extern void kstat_install(kstat_t *);
355 extern void kstat_delete(kstat_t *);
356 extern void kstat_waitq_enter(kstat_io_t *);
357 extern void kstat_waitq_exit(kstat_io_t *);
358 extern void kstat_runq_enter(kstat_io_t *);
359 extern void kstat_runq_exit(kstat_io_t *);
360 extern void kstat_waitq_to_runq(kstat_io_t *);
361 extern void kstat_runq_back_to_waitq(kstat_io_t *);
362 extern void kstat_set_raw_ops(kstat_t *ksp,
363 int (*headers)(char *buf, size_t size),
364 int (*data)(char *buf, size_t size, void *data),
365 void *(*addr)(kstat_t *ksp, loff_t index));
368 * procfs list manipulation
371 typedef struct procfs_list {
376 size_t pl_node_offset;
381 void seq_printf(struct seq_file *m, const char *fmt, ...);
383 typedef struct procfs_list_node {
384 list_node_t pln_link;
386 } procfs_list_node_t;
388 void procfs_list_install(const char *module,
391 procfs_list_t *procfs_list,
392 int (*show)(struct seq_file *f, void *p),
393 int (*show_header)(struct seq_file *f),
394 int (*clear)(procfs_list_t *procfs_list),
395 size_t procfs_list_node_off);
396 void procfs_list_uninstall(procfs_list_t *procfs_list);
397 void procfs_list_destroy(procfs_list_t *procfs_list);
398 void procfs_list_add(procfs_list_t *procfs_list, void *p);
404 #define KM_SLEEP UMEM_NOFAIL
405 #define KM_PUSHPAGE KM_SLEEP
406 #define KM_NOSLEEP UMEM_DEFAULT
407 #define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */
408 #define KMC_NODEBUG UMC_NODEBUG
409 #define KMC_KVMEM 0x0
410 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
411 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
412 #define kmem_free(_b, _s) umem_free(_b, _s)
413 #define vmem_alloc(_s, _f) kmem_alloc(_s, _f)
414 #define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f)
415 #define vmem_free(_b, _s) kmem_free(_b, _s)
416 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
417 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
418 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
419 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
420 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
421 #define kmem_debugging() 0
422 #define kmem_cache_reap_now(_c) umem_cache_reap_now(_c);
423 #define kmem_cache_set_move(_c, _cb) /* nothing */
424 #define POINTER_INVALIDATE(_pp) /* nothing */
425 #define POINTER_IS_VALID(_p) 0
427 typedef umem_cache_t kmem_cache_t;
429 typedef enum kmem_cbrc {
441 #define TASKQ_NAMELEN 31
443 typedef uintptr_t taskqid_t;
444 typedef void (task_func_t)(void *);
446 typedef struct taskq_ent {
447 struct taskq_ent *tqent_next;
448 struct taskq_ent *tqent_prev;
449 task_func_t *tqent_func;
451 uintptr_t tqent_flags;
454 typedef struct taskq {
455 char tq_name[TASKQ_NAMELEN + 1];
457 krwlock_t tq_threadlock;
458 kcondvar_t tq_dispatch_cv;
459 kcondvar_t tq_wait_cv;
460 kthread_t **tq_threadlist;
467 kcondvar_t tq_maxalloc_cv;
468 int tq_maxalloc_wait;
469 taskq_ent_t *tq_freelist;
473 #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
475 #define TASKQ_PREPOPULATE 0x0001
476 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
477 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
478 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
479 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
481 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
482 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
483 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
484 #define TQ_FRONT 0x08 /* Queue in front */
486 #define TASKQID_INVALID ((taskqid_t)0)
488 extern taskq_t *system_taskq;
489 extern taskq_t *system_delay_taskq;
491 extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
492 #define taskq_create_proc(a, b, c, d, e, p, f) \
493 (taskq_create(a, b, c, d, e, f))
494 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
495 (taskq_create(a, b, maxclsyspri, d, e, f))
496 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
497 extern taskqid_t taskq_dispatch_delay(taskq_t *, task_func_t, void *, uint_t,
499 extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t,
501 extern int taskq_empty_ent(taskq_ent_t *);
502 extern void taskq_init_ent(taskq_ent_t *);
503 extern void taskq_destroy(taskq_t *);
504 extern void taskq_wait(taskq_t *);
505 extern void taskq_wait_id(taskq_t *, taskqid_t);
506 extern void taskq_wait_outstanding(taskq_t *, taskqid_t);
507 extern int taskq_member(taskq_t *, kthread_t *);
508 extern taskq_t *taskq_of_curthread(void);
509 extern int taskq_cancel_id(taskq_t *, taskqid_t);
510 extern void system_taskq_init(void);
511 extern void system_taskq_fini(void);
513 #define XVA_MAPSIZE 3
514 #define XVA_MAGIC 0x78766174
516 extern char *vn_dumpdir;
517 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
519 typedef struct xoptattr {
520 inode_timespec_t xoa_createtime; /* Create time of file */
523 uint8_t xoa_readonly;
525 uint8_t xoa_nounlink;
526 uint8_t xoa_immutable;
527 uint8_t xoa_appendonly;
529 uint8_t xoa_settable;
531 uint8_t xoa_av_quarantined;
532 uint8_t xoa_av_modified;
533 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
539 typedef struct vattr {
540 uint_t va_mask; /* bit-mask of attributes */
541 u_offset_t va_size; /* file size in bytes */
545 typedef struct xvattr {
546 vattr_t xva_vattr; /* Embedded vattr structure */
547 uint32_t xva_magic; /* Magic Number */
548 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
549 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
550 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
551 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
552 xoptattr_t xva_xoptattrs; /* Optional attributes */
555 typedef struct vsecattr {
556 uint_t vsa_mask; /* See below */
557 int vsa_aclcnt; /* ACL entry count */
558 void *vsa_aclentp; /* pointer to ACL entries */
559 int vsa_dfaclcnt; /* default ACL entry count */
560 void *vsa_dfaclentp; /* pointer to default ACL entries */
561 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
564 #define AT_MODE 0x00002
565 #define AT_UID 0x00004
566 #define AT_GID 0x00008
567 #define AT_FSID 0x00010
568 #define AT_NODEID 0x00020
569 #define AT_NLINK 0x00040
570 #define AT_SIZE 0x00080
571 #define AT_ATIME 0x00100
572 #define AT_MTIME 0x00200
573 #define AT_CTIME 0x00400
574 #define AT_RDEV 0x00800
575 #define AT_BLKSIZE 0x01000
576 #define AT_NBLOCKS 0x02000
577 #define AT_SEQ 0x08000
578 #define AT_XVATTR 0x10000
583 #define FIGNORECASE 0x80000 /* request case-insensitive lookups */
588 #define ddi_get_lbolt() (gethrtime() >> 23)
589 #define ddi_get_lbolt64() (gethrtime() >> 23)
590 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
592 #define ddi_time_before(a, b) (a < b)
593 #define ddi_time_after(a, b) ddi_time_before(b, a)
594 #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
595 #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)
597 #define ddi_time_before64(a, b) (a < b)
598 #define ddi_time_after64(a, b) ddi_time_before64(b, a)
599 #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
600 #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)
602 extern void delay(clock_t ticks);
604 #define SEC_TO_TICK(sec) ((sec) * hz)
605 #define MSEC_TO_TICK(msec) (howmany((hrtime_t)(msec) * hz, MILLISEC))
606 #define USEC_TO_TICK(usec) (howmany((hrtime_t)(usec) * hz, MICROSEC))
607 #define NSEC_TO_TICK(nsec) (howmany((hrtime_t)(nsec) * hz, NANOSEC))
610 #define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))
613 * Process priorities as defined by setpriority(2) and getpriority(2).
615 #define minclsyspri 19
616 #define maxclsyspri -20
617 #define defclsyspri 0
619 #define CPU_SEQID ((uintptr_t)pthread_self() & (max_ncpus - 1))
624 #define ptob(x) ((x) * PAGESIZE)
626 #define NN_DIVISOR_1000 (1U << 0)
627 #define NN_NUMBUF_SZ (6)
629 extern uint64_t physmem;
630 extern char *random_path;
631 extern char *urandom_path;
633 extern int highbit64(uint64_t i);
634 extern int lowbit64(uint64_t i);
635 extern int random_get_bytes(uint8_t *ptr, size_t len);
636 extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
638 extern void kernel_init(int mode);
639 extern void kernel_fini(void);
640 extern void random_init(void);
641 extern void random_fini(void);
644 extern void show_pool_stats(struct spa *);
645 extern int set_global_var(char *arg);
647 typedef struct callb_cpr {
651 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
652 (cp)->cc_lockp = lockp; \
655 #define CALLB_CPR_SAFE_BEGIN(cp) { \
656 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
659 #define CALLB_CPR_SAFE_END(cp, lockp) { \
660 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
663 #define CALLB_CPR_EXIT(cp) { \
664 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
665 mutex_exit((cp)->cc_lockp); \
668 #define zone_dataset_visible(x, y) (1)
669 #define INGLOBALZONE(z) (1)
670 extern uint32_t zone_get_hostid(void *zonep);
672 extern char *kmem_vasprintf(const char *fmt, va_list adx);
673 extern char *kmem_asprintf(const char *fmt, ...);
674 #define kmem_strfree(str) kmem_free((str), strlen(str) + 1)
675 #define kmem_strdup(s) strdup(s)
678 * Hostname information
680 extern char hw_serial[]; /* for userland-emulated hostid access */
681 extern int ddi_strtoul(const char *str, char **nptr, int base,
682 unsigned long *result);
684 extern int ddi_strtoull(const char *str, char **nptr, int base,
685 u_longlong_t *result);
687 typedef struct utsname utsname_t;
688 extern utsname_t *utsname(void);
690 /* ZFS Boot Related stuff. */
700 typedef struct ace_object {
702 uint32_t a_access_mask;
705 uint8_t a_obj_type[16];
706 uint8_t a_inherit_obj_type[16];
710 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
711 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
712 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
713 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
715 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
716 extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
718 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
719 extern int secpolicy_zfs(const cred_t *cr);
720 extern int secpolicy_zfs_proc(const cred_t *cr, proc_t *proc);
721 extern zoneid_t getzoneid(void);
724 typedef struct ksiddomain {
730 ksiddomain_t *ksid_lookupdomain(const char *);
731 void ksiddomain_rele(ksiddomain_t *);
733 #define DDI_SLEEP KM_SLEEP
734 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
735 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
737 #define zfs_sleep_until(wakeup) \
739 hrtime_t delta = wakeup - gethrtime(); \
740 struct timespec ts; \
741 ts.tv_sec = delta / NANOSEC; \
742 ts.tv_nsec = delta % NANOSEC; \
743 (void) nanosleep(&ts, NULL); \
746 typedef int fstrans_cookie_t;
748 extern fstrans_cookie_t spl_fstrans_mark(void);
749 extern void spl_fstrans_unmark(fstrans_cookie_t);
750 extern int __spl_pf_fstrans_check(void);
751 extern int kmem_cache_reap_active(void);
753 #define ____cacheline_aligned
767 #endif /* _SYS_ZFS_CONTEXT_H */