1 /*	$NetBSD: zfs_context.h,v 1.16 2014/03/28 02:50:18 ozaki-r Exp $	*/
2 
3 /*
4  * CDDL HEADER START
5  *
6  * The contents of this file are subject to the terms of the
7  * Common Development and Distribution License, Version 1.0 only
8  * (the "License").  You may not use this file except in compliance
9  * with the License.
10  *
11  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
12  * or http://www.opensolaris.org/os/licensing.
13  * See the License for the specific language governing permissions
14  * and limitations under the License.
15  *
16  * When distributing Covered Code, include this CDDL HEADER in each
17  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
18  * If applicable, add the following below this CDDL HEADER, with the
19  * fields enclosed by brackets "[]" replaced with your own identifying
20  * information: Portions Copyright [yyyy] [name of copyright owner]
21  *
22  * CDDL HEADER END
23  */
24 /*
25  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms.
27  */
28 
29 #ifndef _SYS_ZFS_CONTEXT_H
30 #define	_SYS_ZFS_CONTEXT_H
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
33 
34 #ifdef	__cplusplus
35 extern "C" {
36 #endif
37 
38 #include <sys/types.h>
39 
40 #ifndef _KERNEL
41 
42 #include <sys/mutex.h>
43 #include <sys/rwlock.h>
44 #include <sys/condvar.h>
45 
46 #define	_SYS_SYSTM_H
47 #define	_SYS_DEBUG_H
48 #define	_SYS_T_LOCK_H
49 #define	_SYS_VNODE_H
50 #define	_SYS_VFS_H
51 #define	_SYS_SUNDDI_H
52 #define	_SYS_CALLB_H
53 #define	_SYS_SCHED_H
54 #define	_SYS_TASKQ_
55 
56 #include <thread.h>
57 #include <umem.h>
58 #include <paths.h>
59 #include <strings.h>
60 #include <string.h>
61 #include <stdio.h>
62 #include <stdlib.h>
63 #include <errno.h>
64 #include <unistd.h>
65 
66 #include <sys/kstat.h>
67 #include <sys/param.h>
68 #include <sys/stdint.h>
69 #include <sys/note.h>
70 #include <sys/uio.h>
71 #include <sys/atomic.h>
72 #include <sys/zfs_debug.h>
73 #include <sys/misc.h>
74 #include <sys/sdt.h>
75 #include <sys/list.h>
76 #include <sys/ccompile.h>
77 #include <sys/byteorder.h>
78 #include <sys/utsname.h>
79 #include <sys/cred.h>
80 #include <sys/pset.h>
81 #include <sys/u8_textprep.h>
82 #include <sys/zone.h>
83 #include <sys/pathname.h>
84 #include <sys/sysevent.h>
85 
86 extern void panic(const char *, ...);
87 
88 #include <sys/cmn_err.h>
89 
90 #include <sys/sysevent/eventdefs.h>
91 
92 /* #include <libzfs.h> */
93 
94 #ifndef ABS
95 #define	ABS(a) ((a) < 0 ? -(a) : (a))
96 #endif
97 
98 extern int aok;
99 
100 /*
101  * Debugging
102  */
103 
104 /*
105  * Note that we are not using the debugging levels.
106  */
107 
108 #define	CE_CONT		0	/* continuation		*/
109 #define	CE_NOTE		1	/* notice		*/
110 #define	CE_WARN		2	/* warning		*/
111 #define	CE_PANIC	3	/* panic		*/
112 #define	CE_IGNORE	4	/* print nothing	*/
113 
114 /*
115  * ZFS debugging
116  */
117 
118 #define	ZFS_LOG(...)	do {  } while (0)
119 
120 typedef u_longlong_t      rlim64_t;
121 #define	RLIM64_INFINITY	((rlim64_t)-3)
122 
123 #ifdef ZFS_DEBUG
124 extern void dprintf_setup(int *argc, char **argv);
125 #endif /* ZFS_DEBUG */
126 
127 /* extern void cmn_err(int, const char *, ...);
128 extern void vcmn_err(int, const char *, va_list); */
129 /* extern void vpanic(const char *, va_list); */
130 
131 #define	fm_panic	panic
132 
133 #if !defined(_LIBZFS_H) && !defined(_ZFS_CONTEXT_NO_VERIFY)
134 #define	verify(EX) (void)((EX) || \
135 	(__assert13(__FILE__, __LINE__, __func__, #EX), 0))
136 #define	VERIFY	verify
137 #endif
138 
139 #define	ASSERT	assert
140 
141 #ifdef lint
142 #define	VERIFY3_IMPL(x, y, z, t)	if (x == z) ((void)0)
143 #else
144 /* BEGIN CSTYLED */
145 #define	VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
146 	const TYPE __left = (TYPE)(LEFT); \
147 	const TYPE __right = (TYPE)(RIGHT); \
148 	if (!(__left OP __right)) { \
149 		char __buf[256]; \
150 		(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
151 			#LEFT, #OP, #RIGHT, \
152 			(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
153 		__assert13(__FILE__, __LINE__, __func__,__buf); \
154 	} \
155 _NOTE(CONSTCOND) } while (0)
156 /* END CSTYLED */
157 #endif /* lint */
158 
159 #define	VERIFY3S(x, y, z)	VERIFY3_IMPL(x, y, z, int64_t)
160 #define	VERIFY3U(x, y, z)	VERIFY3_IMPL(x, y, z, uint64_t)
161 #define	VERIFY3P(x, y, z)	VERIFY3_IMPL(x, y, z, uintptr_t)
162 
163 #ifdef NDEBUG
164 #define	ASSERT3S(x, y, z)	((void)0)
165 #define	ASSERT3U(x, y, z)	((void)0)
166 #define	ASSERT3P(x, y, z)	((void)0)
167 #else
168 #define	ASSERT3S(x, y, z)	VERIFY3S(x, y, z)
169 #define	ASSERT3U(x, y, z)	VERIFY3U(x, y, z)
170 #define	ASSERT3P(x, y, z)	VERIFY3P(x, y, z)
171 #endif
172 
173 /*
174  * Dtrace SDT probes have different signatures in userland than they do in
175  * kernel.  If they're being used in kernel code, re-define them out of
176  * existence for their counterparts in libzpool.
177  */
178 
179 #ifdef DTRACE_PROBE1
180 #undef	DTRACE_PROBE1
181 #define	DTRACE_PROBE1(a, b, c)	((void)0)
182 #endif	/* DTRACE_PROBE1 */
183 
184 #ifdef DTRACE_PROBE2
185 #undef	DTRACE_PROBE2
186 #define	DTRACE_PROBE2(a, b, c, d, e)	((void)0)
187 #endif	/* DTRACE_PROBE2 */
188 
189 #ifdef DTRACE_PROBE3
190 #undef	DTRACE_PROBE3
191 #define	DTRACE_PROBE3(a, b, c, d, e, f, g)	((void)0)
192 #endif	/* DTRACE_PROBE3 */
193 
194 #ifdef DTRACE_PROBE4
195 #undef	DTRACE_PROBE4
196 #define	DTRACE_PROBE4(a, b, c, d, e, f, g, h, i)	((void)0)
197 #endif	/* DTRACE_PROBE4 */
198 
199 /*
200  * Threads
201  */
202 #define	curthread	((void *)(uintptr_t)thr_self())
203 
204 typedef pthread_t kthread_t;
205 
206 #define	thread_create(stk, stksize, func, arg, len, pp, state, pri)	\
207 	zk_thread_create(func, arg)
208 #define	thread_exit() thr_exit(NULL)
209 #define thread_join(t)  panic("libzpool cannot join threads")
210 
211 #define newproc(f, a, cid, pri, ctp, pid)   (ENOSYS)
212 
213 extern kthread_t *zk_thread_create(void (*func)(), void *arg);
214 
215 /* In NetBSD struct proc may be visible in userspace therefore we use it's original
216    definition. */
217 #if !defined(p_startzero)
218 struct proc {
219 	uintptr_t   this_is_never_used_dont_dereference_it;
220 	};
221 #endif
222 
223 extern struct proc p0;
224 
225 #define	issig(why)		(FALSE)
226 #define	ISSIG(thr, why)		(FALSE)
227 #define	makedevice(min, maj)	makedev((min), (maj))
228 
229 /*
230  * Mutexes
231  */
232 
233 #define	MUTEX_DEFAULT	USYNC_THREAD
234 #define	MUTEX_HELD(m)	(mutex_owned(m))
235 
236 extern void mutex_init(kmutex_t *mp, void *, kmutex_type_t, void *);
237 extern void mutex_destroy(kmutex_t *mp);
238 extern void mutex_enter(kmutex_t *mp);
239 extern void mutex_exit(kmutex_t *mp);
240 extern int mutex_tryenter(kmutex_t *mp);
241 extern void *mutex_owner(kmutex_t *mp);
242 extern int mutex_owned(kmutex_t *mp);
243 
244 /*
245  * RW locks
246  */
247 #define	RW_DEFAULT	USYNC_THREAD
248 
249 #define	RW_LOCK_HELD(x)		rw_lock_held(x)
250 #define	RW_WRITE_HELD(x)	rw_write_held(x)
251 #define	RW_READ_HELD(x)		rw_read_held(x)
252 
253 extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
254 extern void rw_destroy(krwlock_t *rwlp);
255 extern void rw_enter(krwlock_t *rwlp, krw_t rw);
256 extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
257 extern int rw_tryupgrade(krwlock_t *rwlp);
258 extern void rw_exit(krwlock_t *rwlp);
259 extern int rw_lock_held(krwlock_t *rwlp);
260 extern int rw_write_held(krwlock_t *rwlp);
261 extern int rw_read_held(krwlock_t *rwlp);
262 #define	rw_downgrade(rwlp) do { } while (0)
263 
264 extern uid_t crgetuid(cred_t *cr);
265 extern gid_t crgetgid(cred_t *cr);
266 extern int crgetngroups(cred_t *cr);
267 extern gid_t *crgetgroups(cred_t *cr);
268 
269 /*
270  * Condition variables
271  */
272 #define	CV_DEFAULT	USYNC_THREAD
273 
274 extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
275 extern void cv_destroy(kcondvar_t *cv);
276 extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
277 extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
278 extern void cv_signal(kcondvar_t *cv);
279 extern void cv_broadcast(kcondvar_t *cv);
280 
281 /*
282  * Kernel memory
283  */
284 #define	KM_SLEEP		UMEM_NOFAIL
285 #define	KM_NOSLEEP		UMEM_DEFAULT
286 #define	KM_PUSHPAGE		UMEM_NOFAIL
287 #define	KMC_NODEBUG		UMC_NODEBUG
288 #define	kmem_alloc(_s, _f)	umem_alloc(_s, _f)
289 #define	kmem_zalloc(_s, _f)	umem_zalloc(_s, _f)
290 #define	kmem_free(_b, _s)	umem_free(_b, _s)
291 #define	kmem_size()		(physmem * PAGESIZE)
292 #define	kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
293 	umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
294 #define	kmem_cache_destroy(_c)	umem_cache_destroy(_c)
295 #define	kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
296 #define	kmem_cache_free(_c, _b)	umem_cache_free(_c, _b)
297 #define	kmem_debugging()	0
298 #define	kmem_cache_reap_now(c)
299 
300 typedef umem_cache_t kmem_cache_t;
301 typedef struct vmem vmem_t;
302 
303 #define	ZFS_EXPORTS_PATH	"/etc/zfs/exports"
304 
305 /*
306  * Task queues
307  */
308 typedef struct taskq taskq_t;
309 typedef uintptr_t taskqid_t;
310 typedef void (task_func_t)(void *);
311 
312 #define TASKQ_PREPOPULATE   0x0001
313 #define TASKQ_CPR_SAFE      0x0002  /* Use CPR safe protocol */
314 #define TASKQ_DYNAMIC       0x0004  /* Use dynamic thread scheduling */
315 #define TASKQ_THREADS_CPU_PCT   0x0008  /* Scale # threads by # cpus */
316 #define TASKQ_DC_BATCH      0x0010  /* Mark threads as batch */
317 
318 #define TQ_SLEEP    KM_SLEEP    /* Can block for memory */
319 #define TQ_NOSLEEP  KM_NOSLEEP  /* cannot block for memory; may fail */
320 #define TQ_NOQUEUE  0x02        /* Do not enqueue if can't dispatch */
321 #define TQ_FRONT    0x08        /* Queue in front */
322 
323 extern taskq_t *system_taskq;
324 
325 extern taskq_t  *taskq_create(const char *, int, pri_t, int, int, uint_t);
326 #define taskq_create_proc(a, b, c, d, e, p, f) \
327 	(taskq_create(a, b, c, d, e, f))
328 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
329 	(taskq_create(a, b, maxclsyspri, d, e, f))
330 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
331 extern void taskq_destroy(taskq_t *);
332 extern void taskq_wait(taskq_t *);
333 extern int  taskq_member(taskq_t *, void *);
334 extern void system_taskq_init(void);
335 extern void system_taskq_fini(void);
336 
337 #define	XVA_MAPSIZE	3
338 #define	XVA_MAGIC	0x78766174
339 
340 /*
341  * vnodes
342  */
343 typedef struct vnode {
344 	uint64_t	v_size;
345 	int		v_fd;
346 	char		*v_path;
347 } vnode_t;
348 
349 typedef struct vattr {
350 	uint_t		va_mask;	/* bit-mask of attributes */
351 	u_offset_t	va_size;	/* file size in bytes */
352 } vattr_t;
353 
354 #define	AT_TYPE		0x0001
355 #define	AT_MODE		0x0002
356 #define	AT_UID		0x0004
357 #define	AT_GID		0x0008
358 #define	AT_FSID		0x0010
359 #define	AT_NODEID	0x0020
360 #define	AT_NLINK	0x0040
361 #define	AT_SIZE		0x0080
362 #define	AT_ATIME	0x0100
363 #define	AT_MTIME	0x0200
364 #define	AT_CTIME	0x0400
365 #define	AT_RDEV		0x0800
366 #define	AT_BLKSIZE	0x1000
367 #define	AT_NBLOCKS	0x2000
368 #define	AT_SEQ		0x8000
369 
370 #define	CRCREAT		0
371 
372 #define	VOP_CLOSE(vp, f, c, o, cr, unk)	0
373 #define	VOP_PUTPAGE(vp, of, sz, fl, cr, unk)	0
374 #define	VOP_GETATTR(vp, vap, fl, cr, unk) vn_getattr(vp, vap)
375 #define	VOP_FSYNC(vp, f, cr, unk)	fsync((vp)->v_fd)
376 
377 #define	VN_RELE(vp)	vn_close(vp)
378 
379 extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
380     int x2, int x3);
381 extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
382     int x2, int x3, vnode_t *vp, int unk);
383 extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
384     offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
385 extern void vn_close(vnode_t *vp);
386 extern int vn_getattr(vnode_t *vp, vattr_t *va);
387 
388 #define	vn_remove(path, x1, x2)		remove(path)
389 #define	vn_rename(from, to, seg)	rename((from), (to))
390 #define	vn_is_readonly(vp)		B_FALSE
391 
392 extern vnode_t *rootdir;
393 
394 #include <sys/file.h>		/* for FREAD, FWRITE, etc */
395 #define	FTRUNC	O_TRUNC
396 #define	openat64	openat
397 
398 
399 /*
400  * Random stuff
401  */
402 #define	lbolt	(gethrtime() >> 23)
403 #define	lbolt64	(gethrtime() >> 23)
404 #define	hz	119	/* frequency when using gethrtime() >> 23 for lbolt */
405 
406 extern void xdelay(clock_t ticks);
407 
408 #define	gethrestime_sec() time(NULL)
409 #define gethrestime(t) \
410 	do {\
411 	(t)->tv_sec = gethrestime_sec();\
412 	(t)->tv_nsec = 0;\
413 	} while (0);
414 
415 #define	max_ncpus	64
416 
417 #define	minclsyspri	60
418 #define	maxclsyspri	99
419 
420 #define	CPU_SEQID	(thr_self() & (max_ncpus - 1))
421 
422 #define	kcred		NULL
423 #define	CRED()		NULL
424 
425 extern uint64_t physmem;
426 
427 extern int random_get_bytes(uint8_t *ptr, size_t len);
428 extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
429 
430 extern void kernel_init(int);
431 extern void kernel_fini(void);
432 
433 struct spa;
434 extern void nicenum(uint64_t, char *, size_t);
435 extern void show_pool_stats(struct spa *);
436 
437 typedef struct callb_cpr {
438 	kmutex_t	*cc_lockp;
439 } callb_cpr_t;
440 
441 #define	CALLB_CPR_INIT(cp, lockp, func, name)	{		\
442 	(cp)->cc_lockp = lockp;					\
443 }
444 
445 #define	CALLB_CPR_SAFE_BEGIN(cp) {				\
446 	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
447 }
448 
449 #define	CALLB_CPR_SAFE_END(cp, lockp) {				\
450 	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
451 }
452 
453 #define	CALLB_CPR_EXIT(cp) {					\
454 	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
455 	mutex_exit((cp)->cc_lockp);				\
456 }
457 
458 #define	zone_dataset_visible(x, y)	(1)
459 #define	INGLOBALZONE(z)			(1)
460 
461 #define	open64	open
462 int	mkdirp(const char *, mode_t);
463 
464 /*
465  * Hostname information
466  */
467 extern struct utsname utsname;
468 extern char hw_serial[];
469 extern int ddi_strtoul(const char *str, char **nptr, int base,
470     unsigned long *result);
471 #define	ddi_get_lbolt()	(gethrtime() >> 23)
472 #define	ddi_get_lbolt64() (gethrtime() >> 23)
473 
474 /* ZFS Boot Related stuff. */
475 
476 struct _buf {
477 	intptr_t	_fd;
478 };
479 
480 struct bootstat {
481 	uint64_t st_size;
482 };
483 
484 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
485 extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
486     cred_t *cr);
487 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
488 
489 extern struct _buf *kobj_open_file(char *name);
490 extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
491     unsigned off);
492 extern void kobj_close_file(struct _buf *file);
493 extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
494 /* Random compatibility stuff. */
495 #define	lbolt	(gethrtime() >> 23)
496 #define	lbolt64	(gethrtime() >> 23)
497 
498 /* extern int hz; */
499 extern uint64_t physmem;
500 
501 #define	gethrestime_sec()	time(NULL)
502 
503 #define	pwrite64(d, p, n, o)	pwrite(d, p, n, o)
504 #define	readdir64(d)		readdir(d)
505 #define	sigispending(td, sig)	(0)
506 #define	root_mount_wait()	do { } while (0)
507 #define	root_mounted()		(1)
508 
509 struct file {
510 	void *dummy;
511 };
512 
513 #define	FCREAT	O_CREAT
514 #define	FOFFMAX	0x0
515 
516 #define	SYSCTL_DECL(...)
517 #define	SYSCTL_NODE(...)
518 #define	SYSCTL_INT(...)
519 #define	SYSCTL_ULONG(...)
520 #ifdef TUNABLE_INT
521 #undef TUNABLE_INT
522 #undef TUNABLE_ULONG
523 #endif
524 #define	TUNABLE_INT(...)
525 #define	TUNABLE_ULONG(...)
526 
527 /* Errors */
528 
529 #ifndef	ERESTART
530 #define	ERESTART	(-1)
531 #endif
532 
533 #ifdef ptob
534 #undef ptob
535 #endif
536 
537 size_t	ptob(size_t);
538 
539 
540 typedef struct ksiddomain {
541 	uint_t	kd_ref;
542 	uint_t	kd_len;
543 	char	*kd_name;
544 } ksiddomain_t;
545 
546 ksiddomain_t *ksid_lookupdomain(const char *);
547 void ksiddomain_rele(ksiddomain_t *);
548 
549 typedef struct ace_object {
550  	uid_t		a_who;
551  	uint32_t	a_access_mask;
552  	uint16_t	a_flags;
553  	uint16_t	a_type;
554  	uint8_t		a_obj_type[16];
555  	uint8_t		a_inherit_obj_type[16];
556 } ace_object_t;
557 
558 #define	ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE	0x05
559 #define	ACE_ACCESS_DENIED_OBJECT_ACE_TYPE	0x06
560 #define	ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE	0x07
561 #define	ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE	0x08
562 
563 /* libzfs_dataset.c */
564 #define	priv_allocset()		(NULL)
565 #define	getppriv(a, b)		(0)
566 #define	priv_isfullset(a)	(B_FALSE)
567 #define	priv_freeset(a)		(0)
568 
569 #define	di_devlink_init(a, b)	(NULL)
570 #define	di_devlink_fini(a)	(0)
571 typedef void			*di_devlink_handle_t;
572 
573 extern char *kmem_asprintf(const char *fmt, ...);
574 #define strfree(str) kmem_free((str), strlen(str)+1)
575 
576 #define DEV_PHYS_PATH "phys_path"
577 
578 #define DDI_SLEEP KM_SLEEP
579 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) 0
580 
581 #else	/* _KERNEL */
582 
583 #include <sys/systm.h>
584 #include <sys/kcondvar.h>
585 #include <sys/limits.h>
586 #include <sys/kmem.h>
587 #include <sys/param.h>
588 #include <sys/stdint.h>
589 #include <sys/note.h>
590 #include <sys/kernel.h>
591 #include <sys/kstat.h>
592 #include <sys/debug.h>
593 #include <sys/proc.h>
594 #include <sys/sysmacros.h>
595 #include <sys/bitmap.h>
596 #include <sys/cmn_err.h>
597 #include <sys/taskq.h>
598 #include <sys/conf.h>
599 #include <sys/mutex.h>
600 #include <sys/rwlock.h>
601 #include <sys/list.h>
602 #include <sys/uio.h>
603 #include <sys/dirent.h>
604 #include <sys/time.h>
605 #include <sys/uio.h>
606 #include <sys/fcntl.h>
607 #include <sys/string.h>
608 #include <sys/buf.h>
609 #include <sys/cred.h>
610 #include <sys/sdt.h>
611 #include <sys/file.h>
612 #include <sys/vfs.h>
613 #include <sys/lockf.h>
614 #include <sys/zone.h>
615 #include <sys/misc.h>
616 #include <sys/zfs_debug.h>
617 #include <sys/byteorder.h>
618 #include <sys/mman.h>
619 #include <sys/random.h>
620 #include <sys/pset.h>
621 #include <sys/u8_textprep.h>
622 #include <sys/sysevent.h>
623 #include <sys/sysevent/eventdefs.h>
624 
625 #include <uvm/uvm_extern.h>
626 
627 #define	CPU_SEQID	(curcpu()->ci_data.cpu_index)
628 #define	lbolt		hardclock_ticks
629 #define	lbolt64		lbolt
630 
631 clock_t ddi_get_lbolt(void);
632 int64_t ddi_get_lbolt64(void);
633 
634 #ifdef	__cplusplus
635 }
636 #endif
637 
638 extern int zfs_debug_level;
639 extern kmutex_t zfs_debug_mtx;
640 #define	ZFS_LOG(lvl, ...)	do {					\
641 	if (((lvl) & 0xff) <= zfs_debug_level) {			\
642 		mutex_enter(&zfs_debug_mtx);				\
643 		printf("%s:%u[%d]: ", __func__, __LINE__, (lvl));	\
644 		printf(__VA_ARGS__);					\
645 		printf("\n");						\
646 		if ((lvl) & 0x100)					\
647 			/* XXXNETBSD backtrace */			\
648 		mutex_exit(&zfs_debug_mtx);				\
649 	}								\
650 } while (0)
651 
652 extern struct utsname utsname;
653 
654 #define	makedevice(a, b)	makedev(a, b)
655 #define	getmajor(a)		major(a)
656 #define	getminor(a)		minor(a)
657 #define issig(x)		(sigispending(curlwp, 0))
658 #define	ISSIG(thr, why)		(sigispending(thr, 0))
659 #define	fm_panic		panic
660 
661 #ifdef ptob
662 #undef ptob
663 #endif
664 #define ptob(x)			((x) * PAGE_SIZE)
665 
666 #define	strncat(a, b, c)	strlcat(a, b, c)
667 #define	tsd_get(x)		lwp_getspecific(x)
668 #define	tsd_set(x, y)		(lwp_setspecific(x, y), 0)
669 #define	kmem_debugging()	0
670 
671 #define zone_get_hostid(a)      0
672 
673 extern char *kmem_asprintf(const char *fmt, ...);
674 #define strfree(str) kmem_free((str), strlen(str)+1)
675 
676 /* NetBSD doesn't need this routines in zfs code, yet */
677 #define	taskq_create_proc(a, b, c, d, e, p, f) \
678 	(taskq_create(a, b, c, d, e, f))
679 #define	taskq_create_sysdc(a, b, d, e, p, dc, f) \
680 	(taskq_create(a, b, maxclsyspri, d, e, f))
681 
682 #define	MAXUID			UID_MAX
683 #define	FIGNORECASE		0
684 #define	CREATE_XATTR_DIR	0
685 
686 #define DEV_PHYS_PATH "phys_path"
687 
688 #define DDI_SLEEP KM_SLEEP
689 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) 0
690 
691 #define sys_shutdown	0
692 
693 #endif	/* _KERNEL */
694 
695 #endif	/* _SYS_ZFS_CONTEXT_H */
696