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, 2016 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
34 #include <sys/types.h>
35 #include <sys/atomic.h>
36 #include <sys/sysmacros.h>
37 #include <sys/vmsystm.h>
38 #include <sys/condvar.h>
39 #include <sys/cmn_err.h>
41 #include <sys/kmem_cache.h>
43 #include <sys/taskq.h>
44 #include <sys/param.h>
47 #include <sys/debug.h>
48 #include <sys/random.h>
49 #include <sys/strings.h>
50 #include <sys/byteorder.h>
52 #include <sys/uio_impl.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 <linux/dcache_compat.h>
66 #include <linux/utsname_compat.h>
72 #define _SYS_CONDVAR_H
100 #include <sys/types.h>
101 #include <sys/cred.h>
102 #include <sys/sysmacros.h>
103 #include <sys/bitmap.h>
104 #include <sys/resource.h>
105 #include <sys/byteorder.h>
106 #include <sys/list.h>
108 #include <sys/zfs_debug.h>
110 #include <sys/kstat.h>
111 #include <sys/u8_textprep.h>
112 #include <sys/sysevent.h>
113 #include <sys/sysevent/eventdefs.h>
114 #include <sys/sunddi.h>
115 #include <sys/debug.h>
116 #include <sys/utsname.h>
122 #define noinline __attribute__((noinline))
123 #define likely(x) __builtin_expect((x), 1)
130 * Note that we are not using the debugging levels.
133 #define CE_CONT 0 /* continuation */
134 #define CE_NOTE 1 /* notice */
135 #define CE_WARN 2 /* warning */
136 #define CE_PANIC 3 /* panic */
137 #define CE_IGNORE 4 /* print nothing */
143 extern void dprintf_setup(int *argc
, char **argv
);
145 extern void cmn_err(int, const char *, ...);
146 extern void vcmn_err(int, const char *, va_list);
147 extern void panic(const char *, ...) __NORETURN
;
148 extern void vpanic(const char *, va_list) __NORETURN
;
150 #define fm_panic panic
155 * DTrace SDT probes have different signatures in userland than they do in
156 * the kernel. If they're being used in kernel code, re-define them out of
157 * existence for their counterparts in libzpool.
159 * Here's an example of how to use the set-error probes in userland:
160 * zfs$target:::set-error /arg0 == EBUSY/ {stack();}
162 * Here's an example of how to use DTRACE_PROBE probes in userland:
163 * If there is a probe declared as follows:
164 * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
165 * Then you can use it as follows:
166 * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
167 * {printf("%u %p\n", arg1, arg2);}
172 #endif /* DTRACE_PROBE */
173 #define DTRACE_PROBE(a) \
178 #endif /* DTRACE_PROBE1 */
179 #define DTRACE_PROBE1(a, b, c) \
180 ZFS_PROBE1(#a, (unsigned long)c)
184 #endif /* DTRACE_PROBE2 */
185 #define DTRACE_PROBE2(a, b, c, d, e) \
186 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
190 #endif /* DTRACE_PROBE3 */
191 #define DTRACE_PROBE3(a, b, c, d, e, f, g) \
192 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
196 #endif /* DTRACE_PROBE4 */
197 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
198 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
204 typedef pthread_t kthread_t
;
206 #define TS_RUN 0x00000002
207 #define TS_JOINABLE 0x00000004
209 #define curthread ((void *)(uintptr_t)pthread_self())
210 #define kpreempt(x) yield()
211 #define getcomm() "unknown"
213 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
214 zk_thread_create(func, arg, stksize, state)
215 #define thread_exit() pthread_exit(NULL)
216 #define thread_join(t) pthread_join((pthread_t)(t), NULL)
218 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
220 /* in libzpool, p0 exists only to have its address taken */
221 typedef struct proc
{
222 uintptr_t this_is_never_used_dont_dereference_it
;
225 extern struct proc p0
;
226 #define curproc (&p0)
230 extern kthread_t
*zk_thread_create(void (*func
)(void *), void *arg
,
231 size_t stksize
, int state
);
233 #define issig(why) (FALSE)
234 #define ISSIG(thr, why) (FALSE)
236 #define kpreempt_disable() ((void)0)
237 #define kpreempt_enable() ((void)0)
242 typedef struct kmutex
{
243 pthread_mutex_t m_lock
;
247 #define MUTEX_DEFAULT 0
248 #define MUTEX_NOLOCKDEP MUTEX_DEFAULT
249 #define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self())
250 #define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp)
252 extern void mutex_init(kmutex_t
*mp
, char *name
, int type
, void *cookie
);
253 extern void mutex_destroy(kmutex_t
*mp
);
254 extern void mutex_enter(kmutex_t
*mp
);
255 extern void mutex_exit(kmutex_t
*mp
);
256 extern int mutex_tryenter(kmutex_t
*mp
);
261 typedef struct krwlock
{
262 pthread_rwlock_t rw_lock
;
271 #define RW_DEFAULT RW_READER
272 #define RW_NOLOCKDEP RW_READER
274 #define RW_READ_HELD(rw) ((rw)->rw_readers > 0)
275 #define RW_WRITE_HELD(rw) pthread_equal((rw)->rw_owner, pthread_self())
276 #define RW_LOCK_HELD(rw) (RW_READ_HELD(rw) || RW_WRITE_HELD(rw))
278 extern void rw_init(krwlock_t
*rwlp
, char *name
, int type
, void *arg
);
279 extern void rw_destroy(krwlock_t
*rwlp
);
280 extern void rw_enter(krwlock_t
*rwlp
, krw_t rw
);
281 extern int rw_tryenter(krwlock_t
*rwlp
, krw_t rw
);
282 extern int rw_tryupgrade(krwlock_t
*rwlp
);
283 extern void rw_exit(krwlock_t
*rwlp
);
284 #define rw_downgrade(rwlp) do { } while (0)
289 extern uid_t
crgetuid(cred_t
*cr
);
290 extern uid_t
crgetruid(cred_t
*cr
);
291 extern gid_t
crgetgid(cred_t
*cr
);
292 extern int crgetngroups(cred_t
*cr
);
293 extern gid_t
*crgetgroups(cred_t
*cr
);
296 * Condition variables
298 typedef pthread_cond_t kcondvar_t
;
301 #define CALLOUT_FLAG_ABSOLUTE 0x2
303 extern void cv_init(kcondvar_t
*cv
, char *name
, int type
, void *arg
);
304 extern void cv_destroy(kcondvar_t
*cv
);
305 extern void cv_wait(kcondvar_t
*cv
, kmutex_t
*mp
);
306 extern clock_t cv_timedwait(kcondvar_t
*cv
, kmutex_t
*mp
, clock_t abstime
);
307 extern clock_t cv_timedwait_hires(kcondvar_t
*cvp
, kmutex_t
*mp
, hrtime_t tim
,
308 hrtime_t res
, int flag
);
309 extern void cv_signal(kcondvar_t
*cv
);
310 extern void cv_broadcast(kcondvar_t
*cv
);
312 #define cv_timedwait_io(cv, mp, at) cv_timedwait(cv, mp, at)
313 #define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at)
314 #define cv_wait_sig(cv, mp) cv_wait(cv, mp)
315 #define cv_wait_io(cv, mp) cv_wait(cv, mp)
316 #define cv_timedwait_sig_hires(cv, mp, t, r, f) \
317 cv_timedwait_hires(cv, mp, t, r, f)
320 * Thread-specific data
322 #define tsd_get(k) pthread_getspecific(k)
323 #define tsd_set(k, v) pthread_setspecific(k, v)
324 #define tsd_create(kp, d) pthread_key_create(kp, d)
325 #define tsd_destroy(kp) /* nothing */
328 * Thread-specific data
330 #define tsd_get(k) pthread_getspecific(k)
331 #define tsd_set(k, v) pthread_setspecific(k, v)
332 #define tsd_create(kp, d) pthread_key_create(kp, d)
333 #define tsd_destroy(kp) /* nothing */
336 * kstat creation, installation and deletion
338 extern kstat_t
*kstat_create(const char *, int,
339 const char *, const char *, uchar_t
, ulong_t
, uchar_t
);
340 extern void kstat_named_init(kstat_named_t
*, const char *, uchar_t
);
341 extern void kstat_install(kstat_t
*);
342 extern void kstat_delete(kstat_t
*);
343 extern void kstat_waitq_enter(kstat_io_t
*);
344 extern void kstat_waitq_exit(kstat_io_t
*);
345 extern void kstat_runq_enter(kstat_io_t
*);
346 extern void kstat_runq_exit(kstat_io_t
*);
347 extern void kstat_waitq_to_runq(kstat_io_t
*);
348 extern void kstat_runq_back_to_waitq(kstat_io_t
*);
349 extern void kstat_set_raw_ops(kstat_t
*ksp
,
350 int (*headers
)(char *buf
, size_t size
),
351 int (*data
)(char *buf
, size_t size
, void *data
),
352 void *(*addr
)(kstat_t
*ksp
, loff_t index
));
357 #define KM_SLEEP UMEM_NOFAIL
358 #define KM_PUSHPAGE KM_SLEEP
359 #define KM_NOSLEEP UMEM_DEFAULT
360 #define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */
361 #define KMC_NODEBUG UMC_NODEBUG
364 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
365 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
366 #define kmem_free(_b, _s) umem_free(_b, _s)
367 #define vmem_alloc(_s, _f) kmem_alloc(_s, _f)
368 #define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f)
369 #define vmem_free(_b, _s) kmem_free(_b, _s)
370 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
371 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
372 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
373 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
374 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
375 #define kmem_debugging() 0
376 #define kmem_cache_reap_now(_c) umem_cache_reap_now(_c);
377 #define kmem_cache_set_move(_c, _cb) /* nothing */
378 #define vmem_qcache_reap(_v) /* nothing */
379 #define POINTER_INVALIDATE(_pp) /* nothing */
380 #define POINTER_IS_VALID(_p) 0
382 extern vmem_t
*zio_arena
;
384 typedef umem_cache_t kmem_cache_t
;
386 typedef enum kmem_cbrc
{
398 #define TASKQ_NAMELEN 31
400 typedef uintptr_t taskqid_t
;
401 typedef void (task_func_t
)(void *);
403 typedef struct taskq_ent
{
404 struct taskq_ent
*tqent_next
;
405 struct taskq_ent
*tqent_prev
;
406 task_func_t
*tqent_func
;
408 uintptr_t tqent_flags
;
411 typedef struct taskq
{
412 char tq_name
[TASKQ_NAMELEN
+ 1];
414 krwlock_t tq_threadlock
;
415 kcondvar_t tq_dispatch_cv
;
416 kcondvar_t tq_wait_cv
;
417 kthread_t
**tq_threadlist
;
424 kcondvar_t tq_maxalloc_cv
;
425 int tq_maxalloc_wait
;
426 taskq_ent_t
*tq_freelist
;
430 #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
432 #define TASKQ_PREPOPULATE 0x0001
433 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
434 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
435 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
436 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
438 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
439 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
440 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
441 #define TQ_FRONT 0x08 /* Queue in front */
443 #define TASKQID_INVALID ((taskqid_t)0)
445 extern taskq_t
*system_taskq
;
446 extern taskq_t
*system_delay_taskq
;
448 extern taskq_t
*taskq_create(const char *, int, pri_t
, int, int, uint_t
);
449 #define taskq_create_proc(a, b, c, d, e, p, f) \
450 (taskq_create(a, b, c, d, e, f))
451 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
452 (taskq_create(a, b, maxclsyspri, d, e, f))
453 extern taskqid_t
taskq_dispatch(taskq_t
*, task_func_t
, void *, uint_t
);
454 extern taskqid_t
taskq_dispatch_delay(taskq_t
*, task_func_t
, void *, uint_t
,
456 extern void taskq_dispatch_ent(taskq_t
*, task_func_t
, void *, uint_t
,
458 extern int taskq_empty_ent(taskq_ent_t
*);
459 extern void taskq_init_ent(taskq_ent_t
*);
460 extern void taskq_destroy(taskq_t
*);
461 extern void taskq_wait(taskq_t
*);
462 extern void taskq_wait_id(taskq_t
*, taskqid_t
);
463 extern void taskq_wait_outstanding(taskq_t
*, taskqid_t
);
464 extern int taskq_member(taskq_t
*, kthread_t
*);
465 extern int taskq_cancel_id(taskq_t
*, taskqid_t
);
466 extern void system_taskq_init(void);
467 extern void system_taskq_fini(void);
469 #define XVA_MAPSIZE 3
470 #define XVA_MAGIC 0x78766174
475 typedef struct vnode
{
482 extern char *vn_dumpdir
;
483 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
485 typedef struct xoptattr
{
486 timestruc_t xoa_createtime
; /* Create time of file */
489 uint8_t xoa_readonly
;
491 uint8_t xoa_nounlink
;
492 uint8_t xoa_immutable
;
493 uint8_t xoa_appendonly
;
495 uint8_t xoa_settable
;
497 uint8_t xoa_av_quarantined
;
498 uint8_t xoa_av_modified
;
499 uint8_t xoa_av_scanstamp
[AV_SCANSTAMP_SZ
];
505 typedef struct vattr
{
506 uint_t va_mask
; /* bit-mask of attributes */
507 u_offset_t va_size
; /* file size in bytes */
511 typedef struct xvattr
{
512 vattr_t xva_vattr
; /* Embedded vattr structure */
513 uint32_t xva_magic
; /* Magic Number */
514 uint32_t xva_mapsize
; /* Size of attr bitmap (32-bit words) */
515 uint32_t *xva_rtnattrmapp
; /* Ptr to xva_rtnattrmap[] */
516 uint32_t xva_reqattrmap
[XVA_MAPSIZE
]; /* Requested attrs */
517 uint32_t xva_rtnattrmap
[XVA_MAPSIZE
]; /* Returned attrs */
518 xoptattr_t xva_xoptattrs
; /* Optional attributes */
521 typedef struct vsecattr
{
522 uint_t vsa_mask
; /* See below */
523 int vsa_aclcnt
; /* ACL entry count */
524 void *vsa_aclentp
; /* pointer to ACL entries */
525 int vsa_dfaclcnt
; /* default ACL entry count */
526 void *vsa_dfaclentp
; /* pointer to default ACL entries */
527 size_t vsa_aclentsz
; /* ACE size in bytes of vsa_aclentp */
530 #define AT_TYPE 0x00001
531 #define AT_MODE 0x00002
532 #define AT_UID 0x00004
533 #define AT_GID 0x00008
534 #define AT_FSID 0x00010
535 #define AT_NODEID 0x00020
536 #define AT_NLINK 0x00040
537 #define AT_SIZE 0x00080
538 #define AT_ATIME 0x00100
539 #define AT_MTIME 0x00200
540 #define AT_CTIME 0x00400
541 #define AT_RDEV 0x00800
542 #define AT_BLKSIZE 0x01000
543 #define AT_NBLOCKS 0x02000
544 #define AT_SEQ 0x08000
545 #define AT_XVATTR 0x10000
549 extern int fop_getattr(vnode_t
*vp
, vattr_t
*vap
);
551 #define VOP_CLOSE(vp, f, c, o, cr, ct) vn_close(vp)
552 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
553 #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
555 #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
557 #define VN_RELE(vp) vn_close(vp)
559 extern int vn_open(char *path
, int x1
, int oflags
, int mode
, vnode_t
**vpp
,
561 extern int vn_openat(char *path
, int x1
, int oflags
, int mode
, vnode_t
**vpp
,
562 int x2
, int x3
, vnode_t
*vp
, int fd
);
563 extern int vn_rdwr(int uio
, vnode_t
*vp
, void *addr
, ssize_t len
,
564 offset_t offset
, int x1
, int x2
, rlim64_t x3
, void *x4
, ssize_t
*residp
);
565 extern void vn_close(vnode_t
*vp
);
567 #define vn_remove(path, x1, x2) remove(path)
568 #define vn_rename(from, to, seg) rename((from), (to))
569 #define vn_is_readonly(vp) B_FALSE
571 extern vnode_t
*rootdir
;
573 #include <sys/file.h> /* for FREAD, FWRITE, etc */
578 #define ddi_get_lbolt() (gethrtime() >> 23)
579 #define ddi_get_lbolt64() (gethrtime() >> 23)
580 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
582 #define ddi_time_before(a, b) (a < b)
583 #define ddi_time_after(a, b) ddi_time_before(b, a)
584 #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
585 #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)
587 #define ddi_time_before64(a, b) (a < b)
588 #define ddi_time_after64(a, b) ddi_time_before64(b, a)
589 #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
590 #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)
592 extern void delay(clock_t ticks
);
594 #define SEC_TO_TICK(sec) ((sec) * hz)
595 #define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz))
596 #define USEC_TO_TICK(usec) ((usec) / (MICROSEC / hz))
597 #define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
599 #define gethrestime_sec() time(NULL)
600 #define gethrestime(t) \
602 (t)->tv_sec = gethrestime_sec();\
607 #define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))
610 * Process priorities as defined by setpriority(2) and getpriority(2).
612 #define minclsyspri 19
613 #define maxclsyspri -20
614 #define defclsyspri 0
616 #define CPU_SEQID ((uintptr_t)pthread_self() & (max_ncpus - 1))
621 #define ptob(x) ((x) * PAGESIZE)
623 #define NN_DIVISOR_1000 (1U << 0)
624 #define NN_NUMBUF_SZ (6)
626 extern uint64_t physmem
;
627 extern char *random_path
;
628 extern char *urandom_path
;
630 extern int highbit64(uint64_t i
);
631 extern int lowbit64(uint64_t i
);
632 extern int random_get_bytes(uint8_t *ptr
, size_t len
);
633 extern int random_get_pseudo_bytes(uint8_t *ptr
, size_t len
);
635 extern void kernel_init(int);
636 extern void kernel_fini(void);
637 extern void random_init(void);
638 extern void random_fini(void);
641 extern void nicenum(uint64_t num
, char *buf
, size_t);
642 extern void show_pool_stats(struct spa
*);
643 extern int set_global_var(char *arg
);
645 typedef struct callb_cpr
{
649 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
650 (cp)->cc_lockp = lockp; \
653 #define CALLB_CPR_SAFE_BEGIN(cp) { \
654 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
657 #define CALLB_CPR_SAFE_END(cp, lockp) { \
658 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
661 #define CALLB_CPR_EXIT(cp) { \
662 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
663 mutex_exit((cp)->cc_lockp); \
666 #define zone_dataset_visible(x, y) (1)
667 #define INGLOBALZONE(z) (1)
668 extern uint32_t zone_get_hostid(void *zonep
);
670 extern char *kmem_vasprintf(const char *fmt
, va_list adx
);
671 extern char *kmem_asprintf(const char *fmt
, ...);
672 #define strfree(str) kmem_free((str), strlen(str) + 1)
675 * Hostname information
677 extern char hw_serial
[]; /* for userland-emulated hostid access */
678 extern int ddi_strtoul(const char *str
, char **nptr
, int base
,
679 unsigned long *result
);
681 extern int ddi_strtoull(const char *str
, char **nptr
, int base
,
682 u_longlong_t
*result
);
684 typedef struct utsname utsname_t
;
685 extern utsname_t
*utsname(void);
687 /* ZFS Boot Related stuff. */
697 typedef struct ace_object
{
699 uint32_t a_access_mask
;
702 uint8_t a_obj_type
[16];
703 uint8_t a_inherit_obj_type
[16];
707 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
708 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
709 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
710 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
712 extern struct _buf
*kobj_open_file(char *name
);
713 extern int kobj_read_file(struct _buf
*file
, char *buf
, unsigned size
,
715 extern void kobj_close_file(struct _buf
*file
);
716 extern int kobj_get_filesize(struct _buf
*file
, uint64_t *size
);
717 extern int zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
);
718 extern int zfs_secpolicy_rename_perms(const char *from
, const char *to
,
720 extern int zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
);
721 extern int secpolicy_zfs(const cred_t
*cr
);
722 extern zoneid_t
getzoneid(void);
725 typedef struct ksiddomain
{
731 ksiddomain_t
*ksid_lookupdomain(const char *);
732 void ksiddomain_rele(ksiddomain_t
*);
734 #define DDI_SLEEP KM_SLEEP
735 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
736 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
738 #define zfs_sleep_until(wakeup) \
740 hrtime_t delta = wakeup - gethrtime(); \
741 struct timespec ts; \
742 ts.tv_sec = delta / NANOSEC; \
743 ts.tv_nsec = delta % NANOSEC; \
744 (void) nanosleep(&ts, NULL); \
747 typedef int fstrans_cookie_t
;
749 extern fstrans_cookie_t
spl_fstrans_mark(void);
750 extern void spl_fstrans_unmark(fstrans_cookie_t
);
751 extern int __spl_pf_fstrans_check(void);
753 #define ____cacheline_aligned
756 #endif /* _SYS_ZFS_CONTEXT_H */