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 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
27 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
28 * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
31 #ifndef _SYS_ZFS_CONTEXT_H
32 #define _SYS_ZFS_CONTEXT_H
37 #include <sys/types.h>
38 #include <sys/t_lock.h>
39 #include <sys/atomic.h>
40 #include <sys/sysmacros.h>
41 #include <sys/bitmap.h>
42 #include <sys/cmn_err.h>
44 #include <sys/kmem_cache.h>
46 #include <sys/taskq.h>
48 #include <sys/param.h>
49 #include <sys/systm.h>
50 #include <sys/cpuvar.h>
54 #include <sys/debug.h>
55 #include <sys/random.h>
56 #include <sys/byteorder.h>
57 #include <sys/systm.h>
59 #include <sys/uio_impl.h>
60 #include <sys/dirent.h>
62 #include <vm/seg_kmem.h>
65 #include <sys/zfs_debug.h>
66 #include <sys/zfs_delay.h>
67 #include <sys/fm/fs/zfs.h>
68 #include <sys/sunddi.h>
69 #include <sys/ctype.h>
71 #include <sys/trace.h>
72 #include <linux/dcache_compat.h>
73 #include <linux/utsname_compat.h>
79 #define _SYS_CONDVAR_H
107 #include <sys/mman.h>
108 #include <sys/note.h>
109 #include <sys/types.h>
110 #include <sys/cred.h>
111 #include <sys/sysmacros.h>
112 #include <sys/bitmap.h>
113 #include <sys/resource.h>
114 #include <sys/byteorder.h>
115 #include <sys/list.h>
117 #include <sys/zfs_debug.h>
119 #include <sys/kstat.h>
120 #include <sys/u8_textprep.h>
121 #include <sys/fm/fs/zfs.h>
122 #include <sys/sunddi.h>
123 #include <sys/debug.h>
124 #include <sys/utsname.h>
130 #define noinline __attribute__((noinline))
137 * Note that we are not using the debugging levels.
140 #define CE_CONT 0 /* continuation */
141 #define CE_NOTE 1 /* notice */
142 #define CE_WARN 2 /* warning */
143 #define CE_PANIC 3 /* panic */
144 #define CE_IGNORE 4 /* print nothing */
150 extern void dprintf_setup(int *argc
, char **argv
);
152 extern void cmn_err(int, const char *, ...);
153 extern void vcmn_err(int, const char *, va_list);
154 extern void panic(const char *, ...);
155 extern void vpanic(const char *, va_list);
157 #define fm_panic panic
162 * DTrace SDT probes have different signatures in userland than they do in
163 * kernel. If they're being used in kernel code, re-define them out of
164 * existence for their counterparts in libzpool.
169 #endif /* DTRACE_PROBE */
170 #define DTRACE_PROBE(a) \
175 #endif /* DTRACE_PROBE1 */
176 #define DTRACE_PROBE1(a, b, c) \
177 ZFS_PROBE1(#a, (unsigned long)c)
181 #endif /* DTRACE_PROBE2 */
182 #define DTRACE_PROBE2(a, b, c, d, e) \
183 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
187 #endif /* DTRACE_PROBE3 */
188 #define DTRACE_PROBE3(a, b, c, d, e, f, g) \
189 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
193 #endif /* DTRACE_PROBE4 */
194 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
195 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
199 * We use the comma operator so that this macro can be used without much
200 * additional code. For example, "return (EINVAL);" becomes
201 * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
202 * twice, so it should not have side effects (e.g. something like:
203 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
205 #define SET_ERROR(err) (ZFS_SET_ERROR(err), err)
208 * Threads. TS_STACK_MIN is dictated by the minimum allowed pthread stack
209 * size. While TS_STACK_MAX is somewhat arbitrary, it was selected to be
210 * large enough for the expected stack depth while small enough to avoid
211 * exhausting address space with high thread counts.
213 #define TS_MAGIC 0x72f158ab4261e538ull
214 #define TS_RUN 0x00000002
215 #define TS_STACK_MIN PTHREAD_STACK_MIN
216 #define TS_STACK_MAX (256 * 1024)
218 /* in libzpool, p0 exists only to have its address taken */
219 typedef struct proc
{
220 uintptr_t this_is_never_used_dont_dereference_it
;
223 extern struct proc p0
;
224 #define curproc (&p0)
226 typedef void (*thread_func_t
)(void *);
227 typedef void (*thread_func_arg_t
)(void *);
228 typedef pthread_t kt_did_t
;
230 #define kpreempt(x) ((void)0)
232 typedef struct kthread
{
234 thread_func_t t_func
;
239 #define curthread zk_thread_current()
240 #define getcomm() "unknown"
241 #define thread_exit zk_thread_exit
242 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
243 zk_thread_create(stk, stksize, (thread_func_t)func, arg, \
244 len, NULL, state, pri, PTHREAD_CREATE_DETACHED)
245 #define thread_join(t) zk_thread_join(t)
246 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
248 extern kthread_t
*zk_thread_current(void);
249 extern void zk_thread_exit(void);
250 extern kthread_t
*zk_thread_create(caddr_t stk
, size_t stksize
,
251 thread_func_t func
, void *arg
, size_t len
,
252 proc_t
*pp
, int state
, pri_t pri
, int detachstate
);
253 extern void zk_thread_join(kt_did_t tid
);
255 #define kpreempt_disable() ((void)0)
256 #define kpreempt_enable() ((void)0)
260 #define issig(why) (FALSE)
261 #define ISSIG(thr, why) (FALSE)
266 #define MTX_MAGIC 0x9522f51362a6e326ull
267 #define MTX_INIT ((void *)NULL)
268 #define MTX_DEST ((void *)-1UL)
270 typedef struct kmutex
{
273 pthread_mutex_t m_lock
;
276 #define MUTEX_DEFAULT 0
277 #define MUTEX_NOLOCKDEP MUTEX_DEFAULT
278 #define MUTEX_HELD(m) ((m)->m_owner == curthread)
279 #define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
281 extern void mutex_init(kmutex_t
*mp
, char *name
, int type
, void *cookie
);
282 extern void mutex_destroy(kmutex_t
*mp
);
283 extern void mutex_enter(kmutex_t
*mp
);
284 extern void mutex_exit(kmutex_t
*mp
);
285 extern int mutex_tryenter(kmutex_t
*mp
);
286 extern void *mutex_owner(kmutex_t
*mp
);
287 extern int mutex_held(kmutex_t
*mp
);
292 #define RW_MAGIC 0x4d31fb123648e78aull
293 #define RW_INIT ((void *)NULL)
294 #define RW_DEST ((void *)-1UL)
296 typedef struct krwlock
{
300 pthread_rwlock_t rw_lock
;
308 #define RW_DEFAULT RW_READER
309 #define RW_NOLOCKDEP RW_READER
311 #define RW_READ_HELD(x) ((x)->rw_readers > 0)
312 #define RW_WRITE_HELD(x) ((x)->rw_wr_owner == curthread)
313 #define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
316 #define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
319 #define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
321 extern void rw_init(krwlock_t
*rwlp
, char *name
, int type
, void *arg
);
322 extern void rw_destroy(krwlock_t
*rwlp
);
323 extern void rw_enter(krwlock_t
*rwlp
, krw_t rw
);
324 extern int rw_tryenter(krwlock_t
*rwlp
, krw_t rw
);
325 extern int rw_tryupgrade(krwlock_t
*rwlp
);
326 extern void rw_exit(krwlock_t
*rwlp
);
327 #define rw_downgrade(rwlp) do { } while (0)
329 extern uid_t
crgetuid(cred_t
*cr
);
330 extern uid_t
crgetruid(cred_t
*cr
);
331 extern gid_t
crgetgid(cred_t
*cr
);
332 extern int crgetngroups(cred_t
*cr
);
333 extern gid_t
*crgetgroups(cred_t
*cr
);
336 * Condition variables
338 #define CV_MAGIC 0xd31ea9a83b1b30c4ull
340 typedef struct kcondvar
{
347 extern void cv_init(kcondvar_t
*cv
, char *name
, int type
, void *arg
);
348 extern void cv_destroy(kcondvar_t
*cv
);
349 extern void cv_wait(kcondvar_t
*cv
, kmutex_t
*mp
);
350 extern clock_t cv_timedwait(kcondvar_t
*cv
, kmutex_t
*mp
, clock_t abstime
);
351 extern clock_t cv_timedwait_hires(kcondvar_t
*cvp
, kmutex_t
*mp
, hrtime_t tim
,
352 hrtime_t res
, int flag
);
353 extern void cv_signal(kcondvar_t
*cv
);
354 extern void cv_broadcast(kcondvar_t
*cv
);
355 #define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at)
356 #define cv_wait_sig(cv, mp) cv_wait(cv, mp)
357 #define cv_wait_io(cv, mp) cv_wait(cv, mp)
360 * Thread-specific data
362 #define tsd_get(k) pthread_getspecific(k)
363 #define tsd_set(k, v) pthread_setspecific(k, v)
364 #define tsd_create(kp, d) pthread_key_create(kp, d)
365 #define tsd_destroy(kp) /* nothing */
368 * Thread-specific data
370 #define tsd_get(k) pthread_getspecific(k)
371 #define tsd_set(k, v) pthread_setspecific(k, v)
372 #define tsd_create(kp, d) pthread_key_create(kp, d)
373 #define tsd_destroy(kp) /* nothing */
376 * kstat creation, installation and deletion
378 extern kstat_t
*kstat_create(const char *, int,
379 const char *, const char *, uchar_t
, ulong_t
, uchar_t
);
380 extern void kstat_install(kstat_t
*);
381 extern void kstat_delete(kstat_t
*);
382 extern void kstat_waitq_enter(kstat_io_t
*);
383 extern void kstat_waitq_exit(kstat_io_t
*);
384 extern void kstat_runq_enter(kstat_io_t
*);
385 extern void kstat_runq_exit(kstat_io_t
*);
386 extern void kstat_waitq_to_runq(kstat_io_t
*);
387 extern void kstat_runq_back_to_waitq(kstat_io_t
*);
388 extern void kstat_set_raw_ops(kstat_t
*ksp
,
389 int (*headers
)(char *buf
, size_t size
),
390 int (*data
)(char *buf
, size_t size
, void *data
),
391 void *(*addr
)(kstat_t
*ksp
, loff_t index
));
396 #define KM_SLEEP UMEM_NOFAIL
397 #define KM_PUSHPAGE KM_SLEEP
398 #define KM_NOSLEEP UMEM_DEFAULT
399 #define KMC_NODEBUG UMC_NODEBUG
402 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
403 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
404 #define kmem_free(_b, _s) umem_free(_b, _s)
405 #define vmem_alloc(_s, _f) kmem_alloc(_s, _f)
406 #define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f)
407 #define vmem_free(_b, _s) kmem_free(_b, _s)
408 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
409 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
410 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
411 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
412 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
413 #define kmem_debugging() 0
414 #define kmem_cache_reap_now(_c) umem_cache_reap_now(_c);
415 #define kmem_cache_set_move(_c, _cb) /* nothing */
416 #define vmem_qcache_reap(_v) /* nothing */
417 #define POINTER_INVALIDATE(_pp) /* nothing */
418 #define POINTER_IS_VALID(_p) 0
420 extern vmem_t
*zio_arena
;
422 typedef umem_cache_t kmem_cache_t
;
424 typedef enum kmem_cbrc
{
435 typedef struct taskq taskq_t
;
436 typedef uintptr_t taskqid_t
;
437 typedef void (task_func_t
)(void *);
439 typedef struct taskq_ent
{
440 struct taskq_ent
*tqent_next
;
441 struct taskq_ent
*tqent_prev
;
442 task_func_t
*tqent_func
;
444 uintptr_t tqent_flags
;
447 #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
449 #define TASKQ_PREPOPULATE 0x0001
450 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
451 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
452 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
453 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
455 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
456 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
457 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
458 #define TQ_FRONT 0x08 /* Queue in front */
460 extern taskq_t
*system_taskq
;
462 extern taskq_t
*taskq_create(const char *, int, pri_t
, int, int, uint_t
);
463 #define taskq_create_proc(a, b, c, d, e, p, f) \
464 (taskq_create(a, b, c, d, e, f))
465 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
466 (taskq_create(a, b, maxclsyspri, d, e, f))
467 extern taskqid_t
taskq_dispatch(taskq_t
*, task_func_t
, void *, uint_t
);
468 extern taskqid_t
taskq_dispatch_delay(taskq_t
*, task_func_t
, void *, uint_t
,
470 extern void taskq_dispatch_ent(taskq_t
*, task_func_t
, void *, uint_t
,
472 extern int taskq_empty_ent(taskq_ent_t
*);
473 extern void taskq_init_ent(taskq_ent_t
*);
474 extern void taskq_destroy(taskq_t
*);
475 extern void taskq_wait(taskq_t
*);
476 extern void taskq_wait_id(taskq_t
*, taskqid_t
);
477 extern void taskq_wait_outstanding(taskq_t
*, taskqid_t
);
478 extern int taskq_member(taskq_t
*, kthread_t
*);
479 extern int taskq_cancel_id(taskq_t
*, taskqid_t
);
480 extern void system_taskq_init(void);
481 extern void system_taskq_fini(void);
483 #define XVA_MAPSIZE 3
484 #define XVA_MAGIC 0x78766174
489 typedef struct vnode
{
495 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
497 typedef struct xoptattr
{
498 timestruc_t xoa_createtime
; /* Create time of file */
501 uint8_t xoa_readonly
;
503 uint8_t xoa_nounlink
;
504 uint8_t xoa_immutable
;
505 uint8_t xoa_appendonly
;
507 uint8_t xoa_settable
;
509 uint8_t xoa_av_quarantined
;
510 uint8_t xoa_av_modified
;
511 uint8_t xoa_av_scanstamp
[AV_SCANSTAMP_SZ
];
517 typedef struct vattr
{
518 uint_t va_mask
; /* bit-mask of attributes */
519 u_offset_t va_size
; /* file size in bytes */
523 typedef struct xvattr
{
524 vattr_t xva_vattr
; /* Embedded vattr structure */
525 uint32_t xva_magic
; /* Magic Number */
526 uint32_t xva_mapsize
; /* Size of attr bitmap (32-bit words) */
527 uint32_t *xva_rtnattrmapp
; /* Ptr to xva_rtnattrmap[] */
528 uint32_t xva_reqattrmap
[XVA_MAPSIZE
]; /* Requested attrs */
529 uint32_t xva_rtnattrmap
[XVA_MAPSIZE
]; /* Returned attrs */
530 xoptattr_t xva_xoptattrs
; /* Optional attributes */
533 typedef struct vsecattr
{
534 uint_t vsa_mask
; /* See below */
535 int vsa_aclcnt
; /* ACL entry count */
536 void *vsa_aclentp
; /* pointer to ACL entries */
537 int vsa_dfaclcnt
; /* default ACL entry count */
538 void *vsa_dfaclentp
; /* pointer to default ACL entries */
539 size_t vsa_aclentsz
; /* ACE size in bytes of vsa_aclentp */
542 #define AT_TYPE 0x00001
543 #define AT_MODE 0x00002
544 #define AT_UID 0x00004
545 #define AT_GID 0x00008
546 #define AT_FSID 0x00010
547 #define AT_NODEID 0x00020
548 #define AT_NLINK 0x00040
549 #define AT_SIZE 0x00080
550 #define AT_ATIME 0x00100
551 #define AT_MTIME 0x00200
552 #define AT_CTIME 0x00400
553 #define AT_RDEV 0x00800
554 #define AT_BLKSIZE 0x01000
555 #define AT_NBLOCKS 0x02000
556 #define AT_SEQ 0x08000
557 #define AT_XVATTR 0x10000
561 extern int fop_getattr(vnode_t
*vp
, vattr_t
*vap
);
563 #define VOP_CLOSE(vp, f, c, o, cr, ct) vn_close(vp)
564 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
565 #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
567 #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
569 #define VN_RELE(vp) vn_close(vp)
571 extern int vn_open(char *path
, int x1
, int oflags
, int mode
, vnode_t
**vpp
,
573 extern int vn_openat(char *path
, int x1
, int oflags
, int mode
, vnode_t
**vpp
,
574 int x2
, int x3
, vnode_t
*vp
, int fd
);
575 extern int vn_rdwr(int uio
, vnode_t
*vp
, void *addr
, ssize_t len
,
576 offset_t offset
, int x1
, int x2
, rlim64_t x3
, void *x4
, ssize_t
*residp
);
577 extern void vn_close(vnode_t
*vp
);
579 #define vn_remove(path, x1, x2) remove(path)
580 #define vn_rename(from, to, seg) rename((from), (to))
581 #define vn_is_readonly(vp) B_FALSE
583 extern vnode_t
*rootdir
;
585 #include <sys/file.h> /* for FREAD, FWRITE, etc */
590 #define ddi_get_lbolt() (gethrtime() >> 23)
591 #define ddi_get_lbolt64() (gethrtime() >> 23)
592 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
594 #define ddi_time_before(a, b) (a < b)
595 #define ddi_time_after(a, b) ddi_time_before(b, a)
596 #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
597 #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)
599 #define ddi_time_before64(a, b) (a < b)
600 #define ddi_time_after64(a, b) ddi_time_before64(b, a)
601 #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
602 #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)
604 extern void delay(clock_t ticks
);
606 #define SEC_TO_TICK(sec) ((sec) * hz)
607 #define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz))
608 #define USEC_TO_TICK(usec) ((usec) / (MICROSEC / hz))
609 #define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
611 #define gethrestime_sec() time(NULL)
612 #define gethrestime(t) \
614 (t)->tv_sec = gethrestime_sec();\
619 #define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))
622 * Process priorities as defined by setpriority(2) and getpriority(2).
624 #define minclsyspri 19
625 #define maxclsyspri -20
626 #define defclsyspri 0
628 #define CPU_SEQID (pthread_self() & (max_ncpus - 1))
633 #define ptob(x) ((x) * PAGESIZE)
635 extern uint64_t physmem
;
637 extern int highbit64(uint64_t i
);
638 extern int random_get_bytes(uint8_t *ptr
, size_t len
);
639 extern int random_get_pseudo_bytes(uint8_t *ptr
, size_t len
);
641 extern void kernel_init(int);
642 extern void kernel_fini(void);
645 extern void nicenum(uint64_t num
, char *buf
);
646 extern void show_pool_stats(struct spa
*);
648 typedef struct callb_cpr
{
652 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
653 (cp)->cc_lockp = lockp; \
656 #define CALLB_CPR_SAFE_BEGIN(cp) { \
657 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
660 #define CALLB_CPR_SAFE_END(cp, lockp) { \
661 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
664 #define CALLB_CPR_EXIT(cp) { \
665 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
666 mutex_exit((cp)->cc_lockp); \
669 #define zone_dataset_visible(x, y) (1)
670 #define INGLOBALZONE(z) (1)
672 extern char *kmem_vasprintf(const char *fmt
, va_list adx
);
673 extern char *kmem_asprintf(const char *fmt
, ...);
674 #define strfree(str) kmem_free((str), strlen(str) + 1)
677 * Hostname information
679 extern char hw_serial
[]; /* for userland-emulated hostid access */
680 extern int ddi_strtoul(const char *str
, char **nptr
, int base
,
681 unsigned long *result
);
683 extern int ddi_strtoull(const char *str
, char **nptr
, int base
,
684 u_longlong_t
*result
);
686 typedef struct utsname utsname_t
;
687 extern utsname_t
*utsname(void);
689 /* ZFS Boot Related stuff. */
699 typedef struct ace_object
{
701 uint32_t a_access_mask
;
704 uint8_t a_obj_type
[16];
705 uint8_t a_inherit_obj_type
[16];
709 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
710 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
711 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
712 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
714 extern struct _buf
*kobj_open_file(char *name
);
715 extern int kobj_read_file(struct _buf
*file
, char *buf
, unsigned size
,
717 extern void kobj_close_file(struct _buf
*file
);
718 extern int kobj_get_filesize(struct _buf
*file
, uint64_t *size
);
719 extern int zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
);
720 extern int zfs_secpolicy_rename_perms(const char *from
, const char *to
,
722 extern int zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
);
723 extern zoneid_t
getzoneid(void);
726 typedef struct ksiddomain
{
732 ksiddomain_t
*ksid_lookupdomain(const char *);
733 void ksiddomain_rele(ksiddomain_t
*);
735 #define DDI_SLEEP KM_SLEEP
736 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
737 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
739 #define zfs_sleep_until(wakeup) \
741 hrtime_t delta = wakeup - gethrtime(); \
742 struct timespec ts; \
743 ts.tv_sec = delta / NANOSEC; \
744 ts.tv_nsec = delta % NANOSEC; \
745 (void) nanosleep(&ts, NULL); \
748 typedef int fstrans_cookie_t
;
750 extern fstrans_cookie_t
spl_fstrans_mark(void);
751 extern void spl_fstrans_unmark(fstrans_cookie_t
);
752 extern int spl_fstrans_check(void);
755 #endif /* _SYS_ZFS_CONTEXT_H */