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/t_lock.h>
36 #include <sys/atomic.h>
37 #include <sys/sysmacros.h>
38 #include <sys/bitmap.h>
39 #include <sys/cmn_err.h>
41 #include <sys/kmem_cache.h>
43 #include <sys/taskq.h>
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/cpuvar.h>
51 #include <sys/debug.h>
52 #include <sys/random.h>
53 #include <sys/byteorder.h>
54 #include <sys/systm.h>
56 #include <sys/uio_impl.h>
57 #include <sys/dirent.h>
59 #include <vm/seg_kmem.h>
62 #include <sys/kstat.h>
63 #include <sys/zfs_debug.h>
64 #include <sys/sysevent.h>
65 #include <sys/sysevent/eventdefs.h>
66 #include <sys/zfs_delay.h>
67 #include <sys/sunddi.h>
68 #include <sys/ctype.h>
70 #include <sys/trace.h>
71 #include <linux/dcache_compat.h>
72 #include <linux/utsname_compat.h>
78 #define _SYS_CONDVAR_H
106 #include <sys/mman.h>
107 #include <sys/note.h>
108 #include <sys/types.h>
109 #include <sys/cred.h>
110 #include <sys/sysmacros.h>
111 #include <sys/bitmap.h>
112 #include <sys/resource.h>
113 #include <sys/byteorder.h>
114 #include <sys/list.h>
116 #include <sys/zfs_debug.h>
118 #include <sys/kstat.h>
119 #include <sys/u8_textprep.h>
120 #include <sys/sysevent.h>
121 #include <sys/sysevent/eventdefs.h>
122 #include <sys/sunddi.h>
123 #include <sys/debug.h>
124 #include <sys/utsname.h>
130 #define noinline __attribute__((noinline))
131 #define likely(x) __builtin_expect((x), 1)
138 * Note that we are not using the debugging levels.
141 #define CE_CONT 0 /* continuation */
142 #define CE_NOTE 1 /* notice */
143 #define CE_WARN 2 /* warning */
144 #define CE_PANIC 3 /* panic */
145 #define CE_IGNORE 4 /* print nothing */
151 extern void dprintf_setup(int *argc
, char **argv
);
153 extern void cmn_err(int, const char *, ...);
154 extern void vcmn_err(int, const char *, va_list);
155 extern void panic(const char *, ...);
156 extern void vpanic(const char *, va_list);
158 #define fm_panic panic
163 * DTrace SDT probes have different signatures in userland than they do in
164 * the kernel. If they're being used in kernel code, re-define them out of
165 * existence for their counterparts in libzpool.
167 * Here's an example of how to use the set-error probes in userland:
168 * zfs$target:::set-error /arg0 == EBUSY/ {stack();}
170 * Here's an example of how to use DTRACE_PROBE probes in userland:
171 * If there is a probe declared as follows:
172 * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
173 * Then you can use it as follows:
174 * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
175 * {printf("%u %p\n", arg1, arg2);}
180 #endif /* DTRACE_PROBE */
181 #define DTRACE_PROBE(a) \
186 #endif /* DTRACE_PROBE1 */
187 #define DTRACE_PROBE1(a, b, c) \
188 ZFS_PROBE1(#a, (unsigned long)c)
192 #endif /* DTRACE_PROBE2 */
193 #define DTRACE_PROBE2(a, b, c, d, e) \
194 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
198 #endif /* DTRACE_PROBE3 */
199 #define DTRACE_PROBE3(a, b, c, d, e, f, g) \
200 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
204 #endif /* DTRACE_PROBE4 */
205 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
206 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
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(stk, stksize, func, arg, len, pp, state, pri) \
222 zk_thread_create(func, arg, stksize, state)
223 #define thread_exit() pthread_exit(NULL)
224 #define thread_join(t) pthread_join((pthread_t)(t), NULL)
226 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
228 /* in libzpool, p0 exists only to have its address taken */
229 typedef struct proc
{
230 uintptr_t this_is_never_used_dont_dereference_it
;
233 extern struct proc p0
;
234 #define curproc (&p0)
238 extern kthread_t
*zk_thread_create(void (*func
)(void *), void *arg
,
239 size_t stksize
, int state
);
241 #define issig(why) (FALSE)
242 #define ISSIG(thr, why) (FALSE)
244 #define kpreempt_disable() ((void)0)
245 #define kpreempt_enable() ((void)0)
250 typedef struct kmutex
{
251 pthread_mutex_t m_lock
;
255 #define MUTEX_DEFAULT 0
256 #define MUTEX_NOLOCKDEP MUTEX_DEFAULT
257 #define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self())
258 #define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp)
260 extern void mutex_init(kmutex_t
*mp
, char *name
, int type
, void *cookie
);
261 extern void mutex_destroy(kmutex_t
*mp
);
262 extern void mutex_enter(kmutex_t
*mp
);
263 extern void mutex_exit(kmutex_t
*mp
);
264 extern int mutex_tryenter(kmutex_t
*mp
);
269 typedef struct krwlock
{
270 pthread_rwlock_t rw_lock
;
279 #define RW_DEFAULT RW_READER
280 #define RW_NOLOCKDEP RW_READER
282 #define RW_READ_HELD(rw) ((rw)->rw_readers > 0)
283 #define RW_WRITE_HELD(rw) pthread_equal((rw)->rw_owner, pthread_self())
284 #define RW_LOCK_HELD(rw) (RW_READ_HELD(rw) || RW_WRITE_HELD(rw))
286 extern void rw_init(krwlock_t
*rwlp
, char *name
, int type
, void *arg
);
287 extern void rw_destroy(krwlock_t
*rwlp
);
288 extern void rw_enter(krwlock_t
*rwlp
, krw_t rw
);
289 extern int rw_tryenter(krwlock_t
*rwlp
, krw_t rw
);
290 extern int rw_tryupgrade(krwlock_t
*rwlp
);
291 extern void rw_exit(krwlock_t
*rwlp
);
292 #define rw_downgrade(rwlp) do { } while (0)
297 extern uid_t
crgetuid(cred_t
*cr
);
298 extern uid_t
crgetruid(cred_t
*cr
);
299 extern gid_t
crgetgid(cred_t
*cr
);
300 extern int crgetngroups(cred_t
*cr
);
301 extern gid_t
*crgetgroups(cred_t
*cr
);
304 * Condition variables
306 typedef pthread_cond_t kcondvar_t
;
309 #define CALLOUT_FLAG_ABSOLUTE 0x2
311 extern void cv_init(kcondvar_t
*cv
, char *name
, int type
, void *arg
);
312 extern void cv_destroy(kcondvar_t
*cv
);
313 extern void cv_wait(kcondvar_t
*cv
, kmutex_t
*mp
);
314 extern clock_t cv_timedwait(kcondvar_t
*cv
, kmutex_t
*mp
, clock_t abstime
);
315 extern clock_t cv_timedwait_hires(kcondvar_t
*cvp
, kmutex_t
*mp
, hrtime_t tim
,
316 hrtime_t res
, int flag
);
317 extern void cv_signal(kcondvar_t
*cv
);
318 extern void cv_broadcast(kcondvar_t
*cv
);
320 #define cv_timedwait_io(cv, mp, at) cv_timedwait(cv, mp, at)
321 #define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at)
322 #define cv_wait_sig(cv, mp) cv_wait(cv, mp)
323 #define cv_wait_io(cv, mp) cv_wait(cv, mp)
324 #define cv_timedwait_sig_hires(cv, mp, t, r, f) \
325 cv_timedwait_hires(cv, mp, t, r, f)
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 * Thread-specific data
338 #define tsd_get(k) pthread_getspecific(k)
339 #define tsd_set(k, v) pthread_setspecific(k, v)
340 #define tsd_create(kp, d) pthread_key_create(kp, d)
341 #define tsd_destroy(kp) /* nothing */
344 * kstat creation, installation and deletion
346 extern kstat_t
*kstat_create(const char *, int,
347 const char *, const char *, uchar_t
, ulong_t
, uchar_t
);
348 extern void kstat_named_init(kstat_named_t
*, const char *, uchar_t
);
349 extern void kstat_install(kstat_t
*);
350 extern void kstat_delete(kstat_t
*);
351 extern void kstat_waitq_enter(kstat_io_t
*);
352 extern void kstat_waitq_exit(kstat_io_t
*);
353 extern void kstat_runq_enter(kstat_io_t
*);
354 extern void kstat_runq_exit(kstat_io_t
*);
355 extern void kstat_waitq_to_runq(kstat_io_t
*);
356 extern void kstat_runq_back_to_waitq(kstat_io_t
*);
357 extern void kstat_set_raw_ops(kstat_t
*ksp
,
358 int (*headers
)(char *buf
, size_t size
),
359 int (*data
)(char *buf
, size_t size
, void *data
),
360 void *(*addr
)(kstat_t
*ksp
, loff_t index
));
365 #define KM_SLEEP UMEM_NOFAIL
366 #define KM_PUSHPAGE KM_SLEEP
367 #define KM_NOSLEEP UMEM_DEFAULT
368 #define KMC_NODEBUG UMC_NODEBUG
371 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
372 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
373 #define kmem_free(_b, _s) umem_free(_b, _s)
374 #define vmem_alloc(_s, _f) kmem_alloc(_s, _f)
375 #define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f)
376 #define vmem_free(_b, _s) kmem_free(_b, _s)
377 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
378 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
379 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
380 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
381 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
382 #define kmem_debugging() 0
383 #define kmem_cache_reap_now(_c) umem_cache_reap_now(_c);
384 #define kmem_cache_set_move(_c, _cb) /* nothing */
385 #define vmem_qcache_reap(_v) /* nothing */
386 #define POINTER_INVALIDATE(_pp) /* nothing */
387 #define POINTER_IS_VALID(_p) 0
389 extern vmem_t
*zio_arena
;
391 typedef umem_cache_t kmem_cache_t
;
393 typedef enum kmem_cbrc
{
405 #define TASKQ_NAMELEN 31
407 typedef uintptr_t taskqid_t
;
408 typedef void (task_func_t
)(void *);
410 typedef struct taskq_ent
{
411 struct taskq_ent
*tqent_next
;
412 struct taskq_ent
*tqent_prev
;
413 task_func_t
*tqent_func
;
415 uintptr_t tqent_flags
;
418 typedef struct taskq
{
419 char tq_name
[TASKQ_NAMELEN
+ 1];
421 krwlock_t tq_threadlock
;
422 kcondvar_t tq_dispatch_cv
;
423 kcondvar_t tq_wait_cv
;
424 kthread_t
**tq_threadlist
;
431 kcondvar_t tq_maxalloc_cv
;
432 int tq_maxalloc_wait
;
433 taskq_ent_t
*tq_freelist
;
437 #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
439 #define TASKQ_PREPOPULATE 0x0001
440 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
441 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
442 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
443 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
445 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
446 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
447 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
448 #define TQ_FRONT 0x08 /* Queue in front */
450 #define TASKQID_INVALID ((taskqid_t)0)
452 extern taskq_t
*system_taskq
;
453 extern taskq_t
*system_delay_taskq
;
455 extern taskq_t
*taskq_create(const char *, int, pri_t
, int, int, uint_t
);
456 #define taskq_create_proc(a, b, c, d, e, p, f) \
457 (taskq_create(a, b, c, d, e, f))
458 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
459 (taskq_create(a, b, maxclsyspri, d, e, f))
460 extern taskqid_t
taskq_dispatch(taskq_t
*, task_func_t
, void *, uint_t
);
461 extern taskqid_t
taskq_dispatch_delay(taskq_t
*, task_func_t
, void *, uint_t
,
463 extern void taskq_dispatch_ent(taskq_t
*, task_func_t
, void *, uint_t
,
465 extern int taskq_empty_ent(taskq_ent_t
*);
466 extern void taskq_init_ent(taskq_ent_t
*);
467 extern void taskq_destroy(taskq_t
*);
468 extern void taskq_wait(taskq_t
*);
469 extern void taskq_wait_id(taskq_t
*, taskqid_t
);
470 extern void taskq_wait_outstanding(taskq_t
*, taskqid_t
);
471 extern int taskq_member(taskq_t
*, kthread_t
*);
472 extern int taskq_cancel_id(taskq_t
*, taskqid_t
);
473 extern void system_taskq_init(void);
474 extern void system_taskq_fini(void);
476 #define XVA_MAPSIZE 3
477 #define XVA_MAGIC 0x78766174
482 typedef struct vnode
{
489 extern char *vn_dumpdir
;
490 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
492 typedef struct xoptattr
{
493 timestruc_t xoa_createtime
; /* Create time of file */
496 uint8_t xoa_readonly
;
498 uint8_t xoa_nounlink
;
499 uint8_t xoa_immutable
;
500 uint8_t xoa_appendonly
;
502 uint8_t xoa_settable
;
504 uint8_t xoa_av_quarantined
;
505 uint8_t xoa_av_modified
;
506 uint8_t xoa_av_scanstamp
[AV_SCANSTAMP_SZ
];
512 typedef struct vattr
{
513 uint_t va_mask
; /* bit-mask of attributes */
514 u_offset_t va_size
; /* file size in bytes */
518 typedef struct xvattr
{
519 vattr_t xva_vattr
; /* Embedded vattr structure */
520 uint32_t xva_magic
; /* Magic Number */
521 uint32_t xva_mapsize
; /* Size of attr bitmap (32-bit words) */
522 uint32_t *xva_rtnattrmapp
; /* Ptr to xva_rtnattrmap[] */
523 uint32_t xva_reqattrmap
[XVA_MAPSIZE
]; /* Requested attrs */
524 uint32_t xva_rtnattrmap
[XVA_MAPSIZE
]; /* Returned attrs */
525 xoptattr_t xva_xoptattrs
; /* Optional attributes */
528 typedef struct vsecattr
{
529 uint_t vsa_mask
; /* See below */
530 int vsa_aclcnt
; /* ACL entry count */
531 void *vsa_aclentp
; /* pointer to ACL entries */
532 int vsa_dfaclcnt
; /* default ACL entry count */
533 void *vsa_dfaclentp
; /* pointer to default ACL entries */
534 size_t vsa_aclentsz
; /* ACE size in bytes of vsa_aclentp */
537 #define AT_TYPE 0x00001
538 #define AT_MODE 0x00002
539 #define AT_UID 0x00004
540 #define AT_GID 0x00008
541 #define AT_FSID 0x00010
542 #define AT_NODEID 0x00020
543 #define AT_NLINK 0x00040
544 #define AT_SIZE 0x00080
545 #define AT_ATIME 0x00100
546 #define AT_MTIME 0x00200
547 #define AT_CTIME 0x00400
548 #define AT_RDEV 0x00800
549 #define AT_BLKSIZE 0x01000
550 #define AT_NBLOCKS 0x02000
551 #define AT_SEQ 0x08000
552 #define AT_XVATTR 0x10000
556 extern int fop_getattr(vnode_t
*vp
, vattr_t
*vap
);
558 #define VOP_CLOSE(vp, f, c, o, cr, ct) vn_close(vp)
559 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
560 #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
562 #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
564 #define VN_RELE(vp) vn_close(vp)
566 extern int vn_open(char *path
, int x1
, int oflags
, int mode
, vnode_t
**vpp
,
568 extern int vn_openat(char *path
, int x1
, int oflags
, int mode
, vnode_t
**vpp
,
569 int x2
, int x3
, vnode_t
*vp
, int fd
);
570 extern int vn_rdwr(int uio
, vnode_t
*vp
, void *addr
, ssize_t len
,
571 offset_t offset
, int x1
, int x2
, rlim64_t x3
, void *x4
, ssize_t
*residp
);
572 extern void vn_close(vnode_t
*vp
);
574 #define vn_remove(path, x1, x2) remove(path)
575 #define vn_rename(from, to, seg) rename((from), (to))
576 #define vn_is_readonly(vp) B_FALSE
578 extern vnode_t
*rootdir
;
580 #include <sys/file.h> /* for FREAD, FWRITE, etc */
585 #define ddi_get_lbolt() (gethrtime() >> 23)
586 #define ddi_get_lbolt64() (gethrtime() >> 23)
587 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
589 #define ddi_time_before(a, b) (a < b)
590 #define ddi_time_after(a, b) ddi_time_before(b, a)
591 #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
592 #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)
594 #define ddi_time_before64(a, b) (a < b)
595 #define ddi_time_after64(a, b) ddi_time_before64(b, a)
596 #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
597 #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)
599 extern void delay(clock_t ticks
);
601 #define SEC_TO_TICK(sec) ((sec) * hz)
602 #define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz))
603 #define USEC_TO_TICK(usec) ((usec) / (MICROSEC / hz))
604 #define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
606 #define gethrestime_sec() time(NULL)
607 #define gethrestime(t) \
609 (t)->tv_sec = gethrestime_sec();\
614 #define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))
617 * Process priorities as defined by setpriority(2) and getpriority(2).
619 #define minclsyspri 19
620 #define maxclsyspri -20
621 #define defclsyspri 0
623 #define CPU_SEQID ((uintptr_t)pthread_self() & (max_ncpus - 1))
628 #define ptob(x) ((x) * PAGESIZE)
630 #define NN_DIVISOR_1000 (1U << 0)
631 #define NN_NUMBUF_SZ (6)
633 extern uint64_t physmem
;
634 extern char *random_path
;
635 extern char *urandom_path
;
637 extern int highbit64(uint64_t i
);
638 extern int lowbit64(uint64_t i
);
639 extern int random_get_bytes(uint8_t *ptr
, size_t len
);
640 extern int random_get_pseudo_bytes(uint8_t *ptr
, size_t len
);
642 extern void kernel_init(int);
643 extern void kernel_fini(void);
644 extern void random_init(void);
645 extern void random_fini(void);
648 extern void nicenum(uint64_t num
, char *buf
, size_t);
649 extern void show_pool_stats(struct spa
*);
650 extern int set_global_var(char *arg
);
652 typedef struct callb_cpr
{
656 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
657 (cp)->cc_lockp = lockp; \
660 #define CALLB_CPR_SAFE_BEGIN(cp) { \
661 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
664 #define CALLB_CPR_SAFE_END(cp, lockp) { \
665 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
668 #define CALLB_CPR_EXIT(cp) { \
669 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
670 mutex_exit((cp)->cc_lockp); \
673 #define zone_dataset_visible(x, y) (1)
674 #define INGLOBALZONE(z) (1)
676 extern char *kmem_vasprintf(const char *fmt
, va_list adx
);
677 extern char *kmem_asprintf(const char *fmt
, ...);
678 #define strfree(str) kmem_free((str), strlen(str) + 1)
681 * Hostname information
683 extern char hw_serial
[]; /* for userland-emulated hostid access */
684 extern int ddi_strtoul(const char *str
, char **nptr
, int base
,
685 unsigned long *result
);
687 extern int ddi_strtoull(const char *str
, char **nptr
, int base
,
688 u_longlong_t
*result
);
690 typedef struct utsname utsname_t
;
691 extern utsname_t
*utsname(void);
693 /* ZFS Boot Related stuff. */
703 typedef struct ace_object
{
705 uint32_t a_access_mask
;
708 uint8_t a_obj_type
[16];
709 uint8_t a_inherit_obj_type
[16];
713 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
714 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
715 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
716 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
718 extern struct _buf
*kobj_open_file(char *name
);
719 extern int kobj_read_file(struct _buf
*file
, char *buf
, unsigned size
,
721 extern void kobj_close_file(struct _buf
*file
);
722 extern int kobj_get_filesize(struct _buf
*file
, uint64_t *size
);
723 extern int zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
);
724 extern int zfs_secpolicy_rename_perms(const char *from
, const char *to
,
726 extern int zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
);
727 extern int secpolicy_zfs(const cred_t
*cr
);
728 extern zoneid_t
getzoneid(void);
731 typedef struct ksiddomain
{
737 ksiddomain_t
*ksid_lookupdomain(const char *);
738 void ksiddomain_rele(ksiddomain_t
*);
740 #define DDI_SLEEP KM_SLEEP
741 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
742 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
744 #define zfs_sleep_until(wakeup) \
746 hrtime_t delta = wakeup - gethrtime(); \
747 struct timespec ts; \
748 ts.tv_sec = delta / NANOSEC; \
749 ts.tv_nsec = delta % NANOSEC; \
750 (void) nanosleep(&ts, NULL); \
753 typedef int fstrans_cookie_t
;
755 extern fstrans_cookie_t
spl_fstrans_mark(void);
756 extern void spl_fstrans_unmark(fstrans_cookie_t
);
757 extern int __spl_pf_fstrans_check(void);
760 #endif /* _SYS_ZFS_CONTEXT_H */