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Revert "Add txgs-<pool> kstat file"
[mirror_zfs.git] / include / sys / zfs_context.h
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77755a57
BB		 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/*
6283f55e
BB		 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
77755a57 24 */
a38718a6
GA		 25/*
26 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
37abac6d 27 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
cc92e9d0 28 * Copyright (c) 2012 by Delphix. All rights reserved.
a38718a6 29 */
77755a57
BB		 30
31#ifndef _SYS_ZFS_CONTEXT_H
32#define _SYS_ZFS_CONTEXT_H
33
e37e1d30 34#ifdef __KERNEL__
6283f55e
BB		 35
36#include <sys/note.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>
43#include <sys/kmem.h>
44#include <sys/taskq.h>
45#include <sys/buf.h>
46#include <sys/param.h>
47#include <sys/systm.h>
48#include <sys/cpuvar.h>
49#include <sys/kobj.h>
50#include <sys/conf.h>
51#include <sys/disp.h>
52#include <sys/debug.h>
53#include <sys/random.h>
54#include <sys/byteorder.h>
55#include <sys/systm.h>
56#include <sys/list.h>
590329b5 57#include <sys/uio_impl.h>
6283f55e
BB		 58#include <sys/dirent.h>
59#include <sys/time.h>
60#include <vm/seg_kmem.h>
61#include <sys/zone.h>
6283f55e
BB		 62#include <sys/zfs_debug.h>
63#include <sys/fm/fs/zfs.h>
64#include <sys/sunddi.h>
d96eb2b1 65#include <sys/ctype.h>
15a9e033 66#include <sys/disp.h>
8299a1f4 67#include <linux/dcache_compat.h>
6283f55e
BB		 68
69#else /* _KERNEL */
77755a57
BB		 70
71#define _SYS_MUTEX_H
72#define _SYS_RWLOCK_H
73#define _SYS_CONDVAR_H
74#define _SYS_SYSTM_H
77755a57
BB		 75#define _SYS_T_LOCK_H
76#define _SYS_VNODE_H
77#define _SYS_VFS_H
78#define _SYS_SUNDDI_H
79#define _SYS_CALLB_H
80
81#include <stdio.h>
82#include <stdlib.h>
83#include <stddef.h>
84#include <stdarg.h>
85#include <fcntl.h>
86#include <unistd.h>
87#include <errno.h>
88#include <string.h>
89#include <strings.h>
1e33ac1e 90#include <pthread.h>
77755a57
BB		 91#include <assert.h>
92#include <alloca.h>
93#include <umem.h>
94#include <limits.h>
95#include <atomic.h>
96#include <dirent.h>
97#include <time.h>
d96eb2b1 98#include <ctype.h>
77755a57
BB		 99#include <sys/note.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>
107#include <sys/uio.h>
108#include <sys/zfs_debug.h>
109#include <sys/sdt.h>
110#include <sys/kstat.h>
111#include <sys/u8_textprep.h>
26685276 112#include <sys/fm/fs/zfs.h>
428870ff 113#include <sys/sunddi.h>
c99c9001 114#include <sys/debug.h>
77755a57 115
60948de1
BB		 116/*
117 * Stack
118 */
119
120#define noinline __attribute__((noinline))
121
77755a57
BB		 122/*
123 * Debugging
124 */
125
126/*
127 * Note that we are not using the debugging levels.
128 */
129
130#define CE_CONT 0 /* continuation */
131#define CE_NOTE 1 /* notice */
132#define CE_WARN 2 /* warning */
133#define CE_PANIC 3 /* panic */
134#define CE_IGNORE 4 /* print nothing */
135
1e33ac1e
BB		 136extern int aok;
137
77755a57
BB		 138/*
139 * ZFS debugging
140 */
141
77755a57 142extern void dprintf_setup(int *argc, char **argv);
d7e398ce
BB		 143extern void __dprintf(const char *file, const char *func,
144 int line, const char *fmt, ...);
77755a57
BB		 145extern void cmn_err(int, const char *, ...);
146extern void vcmn_err(int, const char *, __va_list);
147extern void panic(const char *, ...);
148extern void vpanic(const char *, __va_list);
149
150#define fm_panic panic
151
77755a57
BB		 152/*
153 * DTrace SDT probes have different signatures in userland than they do in
154 * kernel. If they're being used in kernel code, re-define them out of
155 * existence for their counterparts in libzpool.
156 */
157
158#ifdef DTRACE_PROBE
159#undef DTRACE_PROBE
160#define DTRACE_PROBE(a) ((void)0)
161#endif /* DTRACE_PROBE */
162
163#ifdef DTRACE_PROBE1
164#undef DTRACE_PROBE1
165#define DTRACE_PROBE1(a, b, c) ((void)0)
166#endif /* DTRACE_PROBE1 */
167
168#ifdef DTRACE_PROBE2
169#undef DTRACE_PROBE2
170#define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
171#endif /* DTRACE_PROBE2 */
172
173#ifdef DTRACE_PROBE3
174#undef DTRACE_PROBE3
175#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
176#endif /* DTRACE_PROBE3 */
177
178#ifdef DTRACE_PROBE4
179#undef DTRACE_PROBE4
180#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
181#endif /* DTRACE_PROBE4 */
182
183/*
184 * Threads
185 */
1e33ac1e
BB		 186#define TS_MAGIC 0x72f158ab4261e538ull
187#define TS_RUN 0x00000002
188#ifdef __linux__
189#define STACK_SIZE 8192 /* Linux x86 and amd64 */
190#else
191#define STACK_SIZE 24576 /* Solaris */
192#endif
428870ff 193
428870ff 194/* in libzpool, p0 exists only to have its address taken */
1e33ac1e 195typedef struct proc {
428870ff 196 uintptr_t this_is_never_used_dont_dereference_it;
1e33ac1e 197} proc_t;
428870ff
BB		 198
199extern struct proc p0;
37abac6d 200#define curproc (&p0)
428870ff 201
1e33ac1e
BB		 202typedef void (*thread_func_t)(void *);
203typedef void (*thread_func_arg_t)(void *);
204typedef pthread_t kt_did_t;
205
206typedef struct kthread {
207 kt_did_t t_tid;
208 thread_func_t t_func;
209 void * t_arg;
210} kthread_t;
77755a57 211
1e33ac1e
BB		 212#define curthread zk_thread_current()
213#define thread_exit zk_thread_exit
214#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
215 zk_thread_create(stk, stksize, (thread_func_t)func, arg, \
0aebd4f9 216 len, NULL, state, pri, PTHREAD_CREATE_DETACHED)
1e33ac1e
BB		 217#define thread_join(t) zk_thread_join(t)
218#define newproc(f,a,cid,pri,ctp,pid) (ENOSYS)
219
220extern kthread_t *zk_thread_current(void);
221extern void zk_thread_exit(void);
222extern kthread_t *zk_thread_create(caddr_t stk, size_t stksize,
223 thread_func_t func, void *arg, size_t len,
0aebd4f9 224 proc_t *pp, int state, pri_t pri, int detachstate);
1e33ac1e
BB		 225extern void zk_thread_join(kt_did_t tid);
226
15a9e033
PS		 227#define kpreempt_disable() ((void)0)
228#define kpreempt_enable() ((void)0)
229
1e33ac1e 230#define PS_NONE -1
77755a57
BB		 231
232#define issig(why) (FALSE)
233#define ISSIG(thr, why) (FALSE)
234
235/*
236 * Mutexes
237 */
1e33ac1e
BB		 238#define MTX_MAGIC 0x9522f51362a6e326ull
239#define MTX_INIT ((void *)NULL)
240#define MTX_DEST ((void *)-1UL)
241
77755a57
BB		 242typedef struct kmutex {
243 void *m_owner;
1e33ac1e
BB		 244 uint64_t m_magic;
245 pthread_mutex_t m_lock;
77755a57
BB		 246} kmutex_t;
247
1e33ac1e
BB		 248#define MUTEX_DEFAULT 0
249#define MUTEX_HELD(m) ((m)->m_owner == curthread)
572e2857 250#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
77755a57 251
1e33ac1e
BB		 252extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie);
253extern void mutex_destroy(kmutex_t *mp);
77755a57
BB		 254extern void mutex_enter(kmutex_t *mp);
255extern void mutex_exit(kmutex_t *mp);
256extern int mutex_tryenter(kmutex_t *mp);
257extern void *mutex_owner(kmutex_t *mp);
1e33ac1e 258extern int mutex_held(kmutex_t *mp);
77755a57
BB		 259
260/*
261 * RW locks
262 */
1e33ac1e
BB		 263#define RW_MAGIC 0x4d31fb123648e78aull
264#define RW_INIT ((void *)NULL)
265#define RW_DEST ((void *)-1UL)
266
77755a57 267typedef struct krwlock {
1e33ac1e
BB		 268 void *rw_owner;
269 void *rw_wr_owner;
270 uint64_t rw_magic;
271 pthread_rwlock_t rw_lock;
272 uint_t rw_readers;
77755a57
BB		 273} krwlock_t;
274
275typedef int krw_t;
276
277#define RW_READER 0
278#define RW_WRITER 1
1e33ac1e 279#define RW_DEFAULT RW_READER
77755a57 280
1e33ac1e
BB		 281#define RW_READ_HELD(x) ((x)->rw_readers > 0)
282#define RW_WRITE_HELD(x) ((x)->rw_wr_owner == curthread)
283#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
77755a57 284
13fe0198
MA		 285#undef RW_LOCK_HELD
286#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
287
288#undef RW_LOCK_HELD
289#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
290
77755a57
BB		 291extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
292extern void rw_destroy(krwlock_t *rwlp);
293extern void rw_enter(krwlock_t *rwlp, krw_t rw);
294extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
295extern int rw_tryupgrade(krwlock_t *rwlp);
296extern void rw_exit(krwlock_t *rwlp);
297#define rw_downgrade(rwlp) do { } while (0)
298
299extern uid_t crgetuid(cred_t *cr);
6f1ffb06 300extern uid_t crgetruid(cred_t *cr);
77755a57
BB		 301extern gid_t crgetgid(cred_t *cr);
302extern int crgetngroups(cred_t *cr);
303extern gid_t *crgetgroups(cred_t *cr);
304
305/*
306 * Condition variables
307 */
1e33ac1e
BB		 308#define CV_MAGIC 0xd31ea9a83b1b30c4ull
309
310typedef struct kcondvar {
311 uint64_t cv_magic;
312 pthread_cond_t cv;
313} kcondvar_t;
77755a57 314
1e33ac1e 315#define CV_DEFAULT 0
77755a57
BB		 316
317extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
318extern void cv_destroy(kcondvar_t *cv);
319extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
320extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
321extern void cv_signal(kcondvar_t *cv);
322extern void cv_broadcast(kcondvar_t *cv);
e88b041e
BB		 323#define cv_timedwait_interruptible(cv, mp, at) cv_timedwait(cv, mp, at)
324#define cv_wait_interruptible(cv, mp) cv_wait(cv, mp)
72938d69 325#define cv_wait_io(cv, mp) cv_wait(cv, mp)
77755a57 326
13fe0198
MA		 327/*
328 * Thread-specific data
329 */
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 */
334
335/*
336 * Thread-specific data
337 */
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 */
342
77755a57
BB		 343/*
344 * kstat creation, installation and deletion
345 */
346extern kstat_t *kstat_create(char *, int,
347 char *, char *, uchar_t, ulong_t, uchar_t);
348extern void kstat_install(kstat_t *);
349extern void kstat_delete(kstat_t *);
350
351/*
352 * Kernel memory
353 */
354#define KM_SLEEP UMEM_NOFAIL
355#define KM_PUSHPAGE KM_SLEEP
356#define KM_NOSLEEP UMEM_DEFAULT
00b46022 357#define KM_NODEBUG 0x0
77755a57 358#define KMC_NODEBUG UMC_NODEBUG
ae6ba3db
BB		 359#define KMC_KMEM 0x0
360#define KMC_VMEM 0x0
77755a57
BB		 361#define kmem_alloc(_s, _f) umem_alloc(_s, _f)
362#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
363#define kmem_free(_b, _s) umem_free(_b, _s)
00b46022
BB		 364#define vmem_alloc(_s, _f) kmem_alloc(_s, _f)
365#define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f)
366#define vmem_free(_b, _s) kmem_free(_b, _s)
77755a57
BB		 367#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
368 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
369#define kmem_cache_destroy(_c) umem_cache_destroy(_c)
370#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
371#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
372#define kmem_debugging() 0
572e2857
BB		 373#define kmem_cache_reap_now(_c) /* nothing */
374#define kmem_cache_set_move(_c, _cb) /* nothing */
375#define POINTER_INVALIDATE(_pp) /* nothing */
376#define POINTER_IS_VALID(_p) 0
77755a57
BB		 377
378typedef umem_cache_t kmem_cache_t;
379
572e2857
BB		 380typedef enum kmem_cbrc {
381 KMEM_CBRC_YES,
382 KMEM_CBRC_NO,
383 KMEM_CBRC_LATER,
384 KMEM_CBRC_DONT_NEED,
385 KMEM_CBRC_DONT_KNOW
386} kmem_cbrc_t;
387
77755a57
BB		 388/*
389 * Task queues
390 */
391typedef struct taskq taskq_t;
392typedef uintptr_t taskqid_t;
393typedef void (task_func_t)(void *);
394
a38718a6
GA		 395typedef struct taskq_ent {
396 struct taskq_ent *tqent_next;
397 struct taskq_ent *tqent_prev;
398 task_func_t *tqent_func;
399 void *tqent_arg;
400 uintptr_t tqent_flags;
401} taskq_ent_t;
402
403#define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
404
77755a57
BB		 405#define TASKQ_PREPOPULATE 0x0001
406#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
407#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
428870ff
BB		 408#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
409#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
77755a57
BB		 410
411#define TQ_SLEEP KM_SLEEP /* Can block for memory */
412#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
0ef0ff54 413#define TQ_PUSHPAGE KM_PUSHPAGE /* Cannot perform I/O */
428870ff
BB		 414#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
415#define TQ_FRONT 0x08 /* Queue in front */
77755a57
BB		 416
417extern taskq_t *system_taskq;
418
419extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
428870ff
BB		 420#define taskq_create_proc(a, b, c, d, e, p, f) \
421 (taskq_create(a, b, c, d, e, f))
422#define taskq_create_sysdc(a, b, d, e, p, dc, f) \
423 (taskq_create(a, b, maxclsyspri, d, e, f))
77755a57 424extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
cc92e9d0
GW		 425extern taskqid_t taskq_dispatch_delay(taskq_t *, task_func_t, void *, uint_t,
426 clock_t);
a38718a6
GA		 427extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t,
428 taskq_ent_t *);
429extern int taskq_empty_ent(taskq_ent_t *);
430extern void taskq_init_ent(taskq_ent_t *);
77755a57
BB		 431extern void taskq_destroy(taskq_t *);
432extern void taskq_wait(taskq_t *);
044baf00 433extern void taskq_wait_id(taskq_t *, taskqid_t);
1e33ac1e 434extern int taskq_member(taskq_t *, kthread_t *);
cc92e9d0 435extern int taskq_cancel_id(taskq_t *, taskqid_t);
77755a57 436extern void system_taskq_init(void);
428870ff 437extern void system_taskq_fini(void);
77755a57
BB		 438
439#define XVA_MAPSIZE 3
440#define XVA_MAGIC 0x78766174
441
442/*
443 * vnodes
444 */
445typedef struct vnode {
446 uint64_t v_size;
447 int v_fd;
448 char *v_path;
449} vnode_t;
450
428870ff 451#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
77755a57
BB		 452
453typedef struct xoptattr {
454 timestruc_t xoa_createtime; /* Create time of file */
455 uint8_t xoa_archive;
456 uint8_t xoa_system;
457 uint8_t xoa_readonly;
458 uint8_t xoa_hidden;
459 uint8_t xoa_nounlink;
460 uint8_t xoa_immutable;
461 uint8_t xoa_appendonly;
462 uint8_t xoa_nodump;
463 uint8_t xoa_settable;
464 uint8_t xoa_opaque;
465 uint8_t xoa_av_quarantined;
466 uint8_t xoa_av_modified;
428870ff
BB		 467 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
468 uint8_t xoa_reparse;
572e2857
BB		 469 uint8_t xoa_offline;
470 uint8_t xoa_sparse;
77755a57
BB		 471} xoptattr_t;
472
473typedef struct vattr {
474 uint_t va_mask; /* bit-mask of attributes */
475 u_offset_t va_size; /* file size in bytes */
476} vattr_t;
477
478
479typedef struct xvattr {
480 vattr_t xva_vattr; /* Embedded vattr structure */
481 uint32_t xva_magic; /* Magic Number */
482 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
483 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
484 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
485 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
486 xoptattr_t xva_xoptattrs; /* Optional attributes */
487} xvattr_t;
488
489typedef struct vsecattr {
490 uint_t vsa_mask; /* See below */
491 int vsa_aclcnt; /* ACL entry count */
492 void *vsa_aclentp; /* pointer to ACL entries */
493 int vsa_dfaclcnt; /* default ACL entry count */
494 void *vsa_dfaclentp; /* pointer to default ACL entries */
495 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
496} vsecattr_t;
497
498#define AT_TYPE 0x00001
499#define AT_MODE 0x00002
500#define AT_UID 0x00004
501#define AT_GID 0x00008
502#define AT_FSID 0x00010
503#define AT_NODEID 0x00020
504#define AT_NLINK 0x00040
505#define AT_SIZE 0x00080
506#define AT_ATIME 0x00100
507#define AT_MTIME 0x00200
508#define AT_CTIME 0x00400
509#define AT_RDEV 0x00800
510#define AT_BLKSIZE 0x01000
511#define AT_NBLOCKS 0x02000
512#define AT_SEQ 0x08000
513#define AT_XVATTR 0x10000
514
515#define CRCREAT 0
516
428870ff
BB		 517extern int fop_getattr(vnode_t *vp, vattr_t *vap);
518
274091c0 519#define VOP_CLOSE(vp, f, c, o, cr, ct) vn_close(vp)
77755a57 520#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
428870ff 521#define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
77755a57
BB		 522
523#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
524
525#define VN_RELE(vp) vn_close(vp)
526
527extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
528 int x2, int x3);
529extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
530 int x2, int x3, vnode_t *vp, int fd);
531extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
532 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
533extern void vn_close(vnode_t *vp);
534
535#define vn_remove(path, x1, x2) remove(path)
536#define vn_rename(from, to, seg) rename((from), (to))
537#define vn_is_readonly(vp) B_FALSE
538
539extern vnode_t *rootdir;
540
541#include <sys/file.h> /* for FREAD, FWRITE, etc */
542
543/*
544 * Random stuff
545 */
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BB		 546#define ddi_get_lbolt() (gethrtime() >> 23)
547#define ddi_get_lbolt64() (gethrtime() >> 23)
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BB		 548#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
549
550extern void delay(clock_t ticks);
551
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GW		 552#define SEC_TO_TICK(sec) ((sec) * hz)
553#define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz))
554#define USEC_TO_TICK(usec) ((usec) / (MICROSEC / hz))
555#define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
556
77755a57 557#define gethrestime_sec() time(NULL)
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BB		 558#define gethrestime(t) \
559 do {\
560 (t)->tv_sec = gethrestime_sec();\
561 (t)->tv_nsec = 0;\
562 } while (0);
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BB		 563
564#define max_ncpus 64
565
566#define minclsyspri 60
567#define maxclsyspri 99
568
1e33ac1e 569#define CPU_SEQID (pthread_self() & (max_ncpus - 1))
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BB		 570
571#define kcred NULL
572#define CRED() NULL
573
574#define ptob(x) ((x) * PAGESIZE)
575
576extern uint64_t physmem;
577
578extern int highbit(ulong_t i);
579extern int random_get_bytes(uint8_t *ptr, size_t len);
580extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
581
582extern void kernel_init(int);
583extern void kernel_fini(void);
584
585struct spa;
586extern void nicenum(uint64_t num, char *buf);
587extern void show_pool_stats(struct spa *);
588
589typedef struct callb_cpr {
590 kmutex_t *cc_lockp;
591} callb_cpr_t;
592
593#define CALLB_CPR_INIT(cp, lockp, func, name) { \
594 (cp)->cc_lockp = lockp; \
595}
596
597#define CALLB_CPR_SAFE_BEGIN(cp) { \
598 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
599}
600
601#define CALLB_CPR_SAFE_END(cp, lockp) { \
602 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
603}
604
605#define CALLB_CPR_EXIT(cp) { \
606 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
607 mutex_exit((cp)->cc_lockp); \
608}
609
610#define zone_dataset_visible(x, y) (1)
611#define INGLOBALZONE(z) (1)
612
00b46022 613extern char *kmem_vasprintf(const char *fmt, va_list adx);
428870ff 614extern char *kmem_asprintf(const char *fmt, ...);
13fe0198 615#define strfree(str) kmem_free((str), strlen(str) + 1)
428870ff 616
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BB		 617/*
618 * Hostname information
619 */
d164b209 620extern char hw_serial[]; /* for userland-emulated hostid access */
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BB		 621extern int ddi_strtoul(const char *str, char **nptr, int base,
622 unsigned long *result);
623
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BB		 624extern int ddi_strtoull(const char *str, char **nptr, int base,
625 u_longlong_t *result);
626
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BB		 627/* ZFS Boot Related stuff. */
628
629struct _buf {
630 intptr_t _fd;
631};
632
633struct bootstat {
634 uint64_t st_size;
635};
636
637typedef struct ace_object {
638 uid_t a_who;
639 uint32_t a_access_mask;
640 uint16_t a_flags;
641 uint16_t a_type;
642 uint8_t a_obj_type[16];
643 uint8_t a_inherit_obj_type[16];
644} ace_object_t;
645
646
647#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
648#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
649#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
650#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
651
652extern struct _buf *kobj_open_file(char *name);
653extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
654 unsigned off);
655extern void kobj_close_file(struct _buf *file);
656extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
657extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
658extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
659 cred_t *cr);
660extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
661extern zoneid_t getzoneid(void);
662
663/* SID stuff */
664typedef struct ksiddomain {
665 uint_t kd_ref;
666 uint_t kd_len;
667 char *kd_name;
668} ksiddomain_t;
669
670ksiddomain_t *ksid_lookupdomain(const char *);
671void ksiddomain_rele(ksiddomain_t *);
672
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BB		 673#define DDI_SLEEP KM_SLEEP
674#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
675 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
676
6283f55e 677#endif /* _KERNEL */
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BB		 678
679#endif /* _SYS_ZFS_CONTEXT_H */
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