xref: /illumos-gate/usr/src/lib/libzpool/common/sys/zfs_context.h (revision 744947dc83c634d985ed3ad79ac9c5e28d1865fd)
1fa9e4066Sahrens /*
2fa9e4066Sahrens  * CDDL HEADER START
3fa9e4066Sahrens  *
4fa9e4066Sahrens  * The contents of this file are subject to the terms of the
5ea8dc4b6Seschrock  * Common Development and Distribution License (the "License").
6ea8dc4b6Seschrock  * You may not use this file except in compliance with the License.
7fa9e4066Sahrens  *
8fa9e4066Sahrens  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9fa9e4066Sahrens  * or http://www.opensolaris.org/os/licensing.
10fa9e4066Sahrens  * See the License for the specific language governing permissions
11fa9e4066Sahrens  * and limitations under the License.
12fa9e4066Sahrens  *
13fa9e4066Sahrens  * When distributing Covered Code, include this CDDL HEADER in each
14fa9e4066Sahrens  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15fa9e4066Sahrens  * If applicable, add the following below this CDDL HEADER, with the
16fa9e4066Sahrens  * fields enclosed by brackets "[]" replaced with your own identifying
17fa9e4066Sahrens  * information: Portions Copyright [yyyy] [name of copyright owner]
18fa9e4066Sahrens  *
19fa9e4066Sahrens  * CDDL HEADER END
20fa9e4066Sahrens  */
21fa9e4066Sahrens /*
22*744947dcSTom Erickson  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23fa9e4066Sahrens  */
24fa9e4066Sahrens 
25fa9e4066Sahrens #ifndef _SYS_ZFS_CONTEXT_H
26fa9e4066Sahrens #define	_SYS_ZFS_CONTEXT_H
27fa9e4066Sahrens 
28fa9e4066Sahrens #ifdef	__cplusplus
29fa9e4066Sahrens extern "C" {
30fa9e4066Sahrens #endif
31fa9e4066Sahrens 
32fa9e4066Sahrens #define	_SYS_MUTEX_H
33fa9e4066Sahrens #define	_SYS_RWLOCK_H
34fa9e4066Sahrens #define	_SYS_CONDVAR_H
35fa9e4066Sahrens #define	_SYS_SYSTM_H
36fa9e4066Sahrens #define	_SYS_DEBUG_H
37fa9e4066Sahrens #define	_SYS_T_LOCK_H
38fa9e4066Sahrens #define	_SYS_VNODE_H
39fa9e4066Sahrens #define	_SYS_VFS_H
40fa9e4066Sahrens #define	_SYS_SUNDDI_H
41fa9e4066Sahrens #define	_SYS_CALLB_H
42fa9e4066Sahrens 
43fa9e4066Sahrens #include <stdio.h>
44fa9e4066Sahrens #include <stdlib.h>
45fa9e4066Sahrens #include <stddef.h>
46fa9e4066Sahrens #include <stdarg.h>
47fa9e4066Sahrens #include <fcntl.h>
48fa9e4066Sahrens #include <unistd.h>
49fa9e4066Sahrens #include <errno.h>
50fa9e4066Sahrens #include <string.h>
51fa9e4066Sahrens #include <strings.h>
52fa9e4066Sahrens #include <synch.h>
53fa9e4066Sahrens #include <thread.h>
54fa9e4066Sahrens #include <assert.h>
55fa9e4066Sahrens #include <alloca.h>
56fa9e4066Sahrens #include <umem.h>
57fa9e4066Sahrens #include <limits.h>
58fa9e4066Sahrens #include <atomic.h>
59fa9e4066Sahrens #include <dirent.h>
60fa9e4066Sahrens #include <time.h>
61573ca77eSGeorge Wilson #include <libsysevent.h>
62fa9e4066Sahrens #include <sys/note.h>
63fa9e4066Sahrens #include <sys/types.h>
64ecd6cf80Smarks #include <sys/cred.h>
65fa9e4066Sahrens #include <sys/sysmacros.h>
66fa9e4066Sahrens #include <sys/bitmap.h>
67fa9e4066Sahrens #include <sys/resource.h>
68fa9e4066Sahrens #include <sys/byteorder.h>
69fa9e4066Sahrens #include <sys/list.h>
70fa9e4066Sahrens #include <sys/uio.h>
71fa9e4066Sahrens #include <sys/zfs_debug.h>
72fa9e4066Sahrens #include <sys/sdt.h>
7344cb6abcSbmc #include <sys/kstat.h>
74de8267e0Stimh #include <sys/u8_textprep.h>
753d7072f8Seschrock #include <sys/sysevent/eventdefs.h>
76573ca77eSGeorge Wilson #include <sys/sysevent/dev.h>
7792241e0bSTom Erickson #include <sys/sunddi.h>
78fa9e4066Sahrens 
79fa9e4066Sahrens /*
80fa9e4066Sahrens  * Debugging
81fa9e4066Sahrens  */
82fa9e4066Sahrens 
83fa9e4066Sahrens /*
84fa9e4066Sahrens  * Note that we are not using the debugging levels.
85fa9e4066Sahrens  */
86fa9e4066Sahrens 
87fa9e4066Sahrens #define	CE_CONT		0	/* continuation		*/
88fa9e4066Sahrens #define	CE_NOTE		1	/* notice		*/
89fa9e4066Sahrens #define	CE_WARN		2	/* warning		*/
90fa9e4066Sahrens #define	CE_PANIC	3	/* panic		*/
91fa9e4066Sahrens #define	CE_IGNORE	4	/* print nothing	*/
92fa9e4066Sahrens 
93fa9e4066Sahrens /*
94fa9e4066Sahrens  * ZFS debugging
95fa9e4066Sahrens  */
96fa9e4066Sahrens 
97fa9e4066Sahrens #ifdef ZFS_DEBUG
98fa9e4066Sahrens extern void dprintf_setup(int *argc, char **argv);
99fa9e4066Sahrens #endif /* ZFS_DEBUG */
100fa9e4066Sahrens 
101fa9e4066Sahrens extern void cmn_err(int, const char *, ...);
1020125049cSahrens extern void vcmn_err(int, const char *, __va_list);
103fa9e4066Sahrens extern void panic(const char *, ...);
104fa9e4066Sahrens extern void vpanic(const char *, __va_list);
105fa9e4066Sahrens 
1060a4e9518Sgw #define	fm_panic	panic
1070a4e9518Sgw 
108feef89cfSVictor Latushkin extern int aok;
109feef89cfSVictor Latushkin 
110fa9e4066Sahrens /* This definition is copied from assert.h. */
111fa9e4066Sahrens #if defined(__STDC__)
112fa9e4066Sahrens #if __STDC_VERSION__ - 0 >= 199901L
113feef89cfSVictor Latushkin #define	zverify(EX) (void)((EX) || (aok) || \
114fa9e4066Sahrens 	(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
115fa9e4066Sahrens #else
116feef89cfSVictor Latushkin #define	zverify(EX) (void)((EX) || (aok) || \
117feef89cfSVictor Latushkin 	(__assert(#EX, __FILE__, __LINE__), 0))
118fa9e4066Sahrens #endif /* __STDC_VERSION__ - 0 >= 199901L */
119fa9e4066Sahrens #else
120feef89cfSVictor Latushkin #define	zverify(EX) (void)((EX) || (aok) || \
121feef89cfSVictor Latushkin 	(_assert("EX", __FILE__, __LINE__), 0))
122fa9e4066Sahrens #endif	/* __STDC__ */
123fa9e4066Sahrens 
124fa9e4066Sahrens 
125feef89cfSVictor Latushkin #define	VERIFY	zverify
126feef89cfSVictor Latushkin #define	ASSERT	zverify
127feef89cfSVictor Latushkin #undef	assert
128feef89cfSVictor Latushkin #define	assert	zverify
129fa9e4066Sahrens 
130fa9e4066Sahrens extern void __assert(const char *, const char *, int);
131fa9e4066Sahrens 
132fa9e4066Sahrens #ifdef lint
133fa9e4066Sahrens #define	VERIFY3_IMPL(x, y, z, t)	if (x == z) ((void)0)
134fa9e4066Sahrens #else
135fa9e4066Sahrens /* BEGIN CSTYLED */
136fa9e4066Sahrens #define	VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
137fa9e4066Sahrens 	const TYPE __left = (TYPE)(LEFT); \
138fa9e4066Sahrens 	const TYPE __right = (TYPE)(RIGHT); \
139feef89cfSVictor Latushkin 	if (!(__left OP __right) && (!aok)) { \
140fa9e4066Sahrens 		char *__buf = alloca(256); \
141fa9e4066Sahrens 		(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
142fa9e4066Sahrens 			#LEFT, #OP, #RIGHT, \
143fa9e4066Sahrens 			(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
144fa9e4066Sahrens 		__assert(__buf, __FILE__, __LINE__); \
145fa9e4066Sahrens 	} \
146fa9e4066Sahrens _NOTE(CONSTCOND) } while (0)
147fa9e4066Sahrens /* END CSTYLED */
148fa9e4066Sahrens #endif /* lint */
149fa9e4066Sahrens 
150fa9e4066Sahrens #define	VERIFY3S(x, y, z)	VERIFY3_IMPL(x, y, z, int64_t)
151fa9e4066Sahrens #define	VERIFY3U(x, y, z)	VERIFY3_IMPL(x, y, z, uint64_t)
152fa9e4066Sahrens #define	VERIFY3P(x, y, z)	VERIFY3_IMPL(x, y, z, uintptr_t)
153fa9e4066Sahrens 
154fa9e4066Sahrens #ifdef NDEBUG
155fa9e4066Sahrens #define	ASSERT3S(x, y, z)	((void)0)
156fa9e4066Sahrens #define	ASSERT3U(x, y, z)	((void)0)
157fa9e4066Sahrens #define	ASSERT3P(x, y, z)	((void)0)
158fa9e4066Sahrens #else
159fa9e4066Sahrens #define	ASSERT3S(x, y, z)	VERIFY3S(x, y, z)
160fa9e4066Sahrens #define	ASSERT3U(x, y, z)	VERIFY3U(x, y, z)
161fa9e4066Sahrens #define	ASSERT3P(x, y, z)	VERIFY3P(x, y, z)
162fa9e4066Sahrens #endif
163fa9e4066Sahrens 
164fa9e4066Sahrens /*
1653d7072f8Seschrock  * DTrace SDT probes have different signatures in userland than they do in
166fa9e4066Sahrens  * kernel.  If they're being used in kernel code, re-define them out of
167fa9e4066Sahrens  * existence for their counterparts in libzpool.
168fa9e4066Sahrens  */
169fa9e4066Sahrens 
17005715f94SMark Maybee #ifdef DTRACE_PROBE
17105715f94SMark Maybee #undef	DTRACE_PROBE
17205715f94SMark Maybee #define	DTRACE_PROBE(a)	((void)0)
17305715f94SMark Maybee #endif	/* DTRACE_PROBE */
17405715f94SMark Maybee 
175fa9e4066Sahrens #ifdef DTRACE_PROBE1
176fa9e4066Sahrens #undef	DTRACE_PROBE1
177fa9e4066Sahrens #define	DTRACE_PROBE1(a, b, c)	((void)0)
178fa9e4066Sahrens #endif	/* DTRACE_PROBE1 */
179fa9e4066Sahrens 
180fa9e4066Sahrens #ifdef DTRACE_PROBE2
181fa9e4066Sahrens #undef	DTRACE_PROBE2
182fa9e4066Sahrens #define	DTRACE_PROBE2(a, b, c, d, e)	((void)0)
183fa9e4066Sahrens #endif	/* DTRACE_PROBE2 */
184fa9e4066Sahrens 
185c543ec06Sahrens #ifdef DTRACE_PROBE3
186c543ec06Sahrens #undef	DTRACE_PROBE3
187c543ec06Sahrens #define	DTRACE_PROBE3(a, b, c, d, e, f, g)	((void)0)
188c543ec06Sahrens #endif	/* DTRACE_PROBE3 */
189c543ec06Sahrens 
190faafa6e3Sahrens #ifdef DTRACE_PROBE4
191faafa6e3Sahrens #undef	DTRACE_PROBE4
192faafa6e3Sahrens #define	DTRACE_PROBE4(a, b, c, d, e, f, g, h, i)	((void)0)
193faafa6e3Sahrens #endif	/* DTRACE_PROBE4 */
194faafa6e3Sahrens 
195fa9e4066Sahrens /*
196fa9e4066Sahrens  * Threads
197fa9e4066Sahrens  */
198fa9e4066Sahrens #define	curthread	((void *)(uintptr_t)thr_self())
199fa9e4066Sahrens 
200fa9e4066Sahrens typedef struct kthread kthread_t;
201fa9e4066Sahrens 
202fa9e4066Sahrens #define	thread_create(stk, stksize, func, arg, len, pp, state, pri)	\
203fa9e4066Sahrens 	zk_thread_create(func, arg)
2045ad82045Snd #define	thread_exit() thr_exit(NULL)
20535a5a358SJonathan Adams #define	thread_join(t)	panic("libzpool cannot join threads")
20635a5a358SJonathan Adams 
20735a5a358SJonathan Adams #define	newproc(f, a, cid, pri, ctp, pid)	(ENOSYS)
20835a5a358SJonathan Adams 
20935a5a358SJonathan Adams /* in libzpool, p0 exists only to have its address taken */
21035a5a358SJonathan Adams struct proc {
21135a5a358SJonathan Adams 	uintptr_t	this_is_never_used_dont_dereference_it;
21235a5a358SJonathan Adams };
21335a5a358SJonathan Adams 
21435a5a358SJonathan Adams extern struct proc p0;
21535a5a358SJonathan Adams 
21635a5a358SJonathan Adams #define	PS_NONE		-1
217fa9e4066Sahrens 
218fa9e4066Sahrens extern kthread_t *zk_thread_create(void (*func)(), void *arg);
219fa9e4066Sahrens 
220fa9e4066Sahrens #define	issig(why)	(FALSE)
221fa9e4066Sahrens #define	ISSIG(thr, why)	(FALSE)
222fa9e4066Sahrens 
223fa9e4066Sahrens /*
224fa9e4066Sahrens  * Mutexes
225fa9e4066Sahrens  */
226fa9e4066Sahrens typedef struct kmutex {
227c25056deSgw 	void		*m_owner;
228c25056deSgw 	boolean_t	initialized;
229c25056deSgw 	mutex_t		m_lock;
230fa9e4066Sahrens } kmutex_t;
231fa9e4066Sahrens 
232fa9e4066Sahrens #define	MUTEX_DEFAULT	USYNC_THREAD
233*744947dcSTom Erickson #undef	MUTEX_HELD
234*744947dcSTom Erickson #undef	MUTEX_NOT_HELD
235fa9e4066Sahrens #define	MUTEX_HELD(m) _mutex_held(&(m)->m_lock)
236*744947dcSTom Erickson #define	MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
237fa9e4066Sahrens 
238fa9e4066Sahrens /*
239fa9e4066Sahrens  * Argh -- we have to get cheesy here because the kernel and userland
240fa9e4066Sahrens  * have different signatures for the same routine.
241fa9e4066Sahrens  */
242fa9e4066Sahrens extern int _mutex_init(mutex_t *mp, int type, void *arg);
243fa9e4066Sahrens extern int _mutex_destroy(mutex_t *mp);
244fa9e4066Sahrens 
245fa9e4066Sahrens #define	mutex_init(mp, b, c, d)		zmutex_init((kmutex_t *)(mp))
246fa9e4066Sahrens #define	mutex_destroy(mp)		zmutex_destroy((kmutex_t *)(mp))
247fa9e4066Sahrens 
248fa9e4066Sahrens extern void zmutex_init(kmutex_t *mp);
249fa9e4066Sahrens extern void zmutex_destroy(kmutex_t *mp);
250fa9e4066Sahrens extern void mutex_enter(kmutex_t *mp);
251fa9e4066Sahrens extern void mutex_exit(kmutex_t *mp);
252fa9e4066Sahrens extern int mutex_tryenter(kmutex_t *mp);
253fa9e4066Sahrens extern void *mutex_owner(kmutex_t *mp);
254fa9e4066Sahrens 
255fa9e4066Sahrens /*
256fa9e4066Sahrens  * RW locks
257fa9e4066Sahrens  */
258fa9e4066Sahrens typedef struct krwlock {
259fa9e4066Sahrens 	void		*rw_owner;
260c25056deSgw 	boolean_t	initialized;
261fa9e4066Sahrens 	rwlock_t	rw_lock;
262fa9e4066Sahrens } krwlock_t;
263fa9e4066Sahrens 
264fa9e4066Sahrens typedef int krw_t;
265fa9e4066Sahrens 
266fa9e4066Sahrens #define	RW_READER	0
267fa9e4066Sahrens #define	RW_WRITER	1
268fa9e4066Sahrens #define	RW_DEFAULT	USYNC_THREAD
269fa9e4066Sahrens 
270fa9e4066Sahrens #undef RW_READ_HELD
271fa9e4066Sahrens #define	RW_READ_HELD(x)		_rw_read_held(&(x)->rw_lock)
272fa9e4066Sahrens 
273fa9e4066Sahrens #undef RW_WRITE_HELD
274fa9e4066Sahrens #define	RW_WRITE_HELD(x)	_rw_write_held(&(x)->rw_lock)
275fa9e4066Sahrens 
276fa9e4066Sahrens extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
277fa9e4066Sahrens extern void rw_destroy(krwlock_t *rwlp);
278fa9e4066Sahrens extern void rw_enter(krwlock_t *rwlp, krw_t rw);
279fa9e4066Sahrens extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
280fa9e4066Sahrens extern int rw_tryupgrade(krwlock_t *rwlp);
281fa9e4066Sahrens extern void rw_exit(krwlock_t *rwlp);
282fa9e4066Sahrens #define	rw_downgrade(rwlp) do { } while (0)
283fa9e4066Sahrens 
284ecd6cf80Smarks extern uid_t crgetuid(cred_t *cr);
285ecd6cf80Smarks extern gid_t crgetgid(cred_t *cr);
286ecd6cf80Smarks extern int crgetngroups(cred_t *cr);
287ecd6cf80Smarks extern gid_t *crgetgroups(cred_t *cr);
288ecd6cf80Smarks 
289fa9e4066Sahrens /*
290fa9e4066Sahrens  * Condition variables
291fa9e4066Sahrens  */
292fa9e4066Sahrens typedef cond_t kcondvar_t;
293fa9e4066Sahrens 
294fa9e4066Sahrens #define	CV_DEFAULT	USYNC_THREAD
295fa9e4066Sahrens 
296fa9e4066Sahrens extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
297fa9e4066Sahrens extern void cv_destroy(kcondvar_t *cv);
298fa9e4066Sahrens extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
299fa9e4066Sahrens extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
300fa9e4066Sahrens extern void cv_signal(kcondvar_t *cv);
301fa9e4066Sahrens extern void cv_broadcast(kcondvar_t *cv);
302fa9e4066Sahrens 
30344cb6abcSbmc /*
30444cb6abcSbmc  * kstat creation, installation and deletion
30544cb6abcSbmc  */
30644cb6abcSbmc extern kstat_t *kstat_create(char *, int,
30744cb6abcSbmc     char *, char *, uchar_t, ulong_t, uchar_t);
30844cb6abcSbmc extern void kstat_install(kstat_t *);
30944cb6abcSbmc extern void kstat_delete(kstat_t *);
31044cb6abcSbmc 
311fa9e4066Sahrens /*
312fa9e4066Sahrens  * Kernel memory
313fa9e4066Sahrens  */
314fa9e4066Sahrens #define	KM_SLEEP		UMEM_NOFAIL
3151ab7f2deSmaybee #define	KM_PUSHPAGE		KM_SLEEP
316fa9e4066Sahrens #define	KM_NOSLEEP		UMEM_DEFAULT
317a0965f35Sbonwick #define	KMC_NODEBUG		UMC_NODEBUG
318fa9e4066Sahrens #define	kmem_alloc(_s, _f)	umem_alloc(_s, _f)
319fa9e4066Sahrens #define	kmem_zalloc(_s, _f)	umem_zalloc(_s, _f)
320fa9e4066Sahrens #define	kmem_free(_b, _s)	umem_free(_b, _s)
321fa9e4066Sahrens #define	kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
322fa9e4066Sahrens 	umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
323fa9e4066Sahrens #define	kmem_cache_destroy(_c)	umem_cache_destroy(_c)
324fa9e4066Sahrens #define	kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
325fa9e4066Sahrens #define	kmem_cache_free(_c, _b)	umem_cache_free(_c, _b)
326fa9e4066Sahrens #define	kmem_debugging()	0
327*744947dcSTom Erickson #define	kmem_cache_reap_now(_c)		/* nothing */
328*744947dcSTom Erickson #define	kmem_cache_set_move(_c, _cb)	/* nothing */
329*744947dcSTom Erickson #define	POINTER_INVALIDATE(_pp)		/* nothing */
330*744947dcSTom Erickson #define	POINTER_IS_VALID(_p)	0
331fa9e4066Sahrens 
332fa9e4066Sahrens typedef umem_cache_t kmem_cache_t;
333fa9e4066Sahrens 
334*744947dcSTom Erickson typedef enum kmem_cbrc {
335*744947dcSTom Erickson 	KMEM_CBRC_YES,
336*744947dcSTom Erickson 	KMEM_CBRC_NO,
337*744947dcSTom Erickson 	KMEM_CBRC_LATER,
338*744947dcSTom Erickson 	KMEM_CBRC_DONT_NEED,
339*744947dcSTom Erickson 	KMEM_CBRC_DONT_KNOW
340*744947dcSTom Erickson } kmem_cbrc_t;
341*744947dcSTom Erickson 
342fa9e4066Sahrens /*
343fa9e4066Sahrens  * Task queues
344fa9e4066Sahrens  */
345fa9e4066Sahrens typedef struct taskq taskq_t;
346fa9e4066Sahrens typedef uintptr_t taskqid_t;
347fa9e4066Sahrens typedef void (task_func_t)(void *);
348fa9e4066Sahrens 
349fa9e4066Sahrens #define	TASKQ_PREPOPULATE	0x0001
350fa9e4066Sahrens #define	TASKQ_CPR_SAFE		0x0002	/* Use CPR safe protocol */
351fa9e4066Sahrens #define	TASKQ_DYNAMIC		0x0004	/* Use dynamic thread scheduling */
35235a5a358SJonathan Adams #define	TASKQ_THREADS_CPU_PCT	0x0008	/* Scale # threads by # cpus */
35335a5a358SJonathan Adams #define	TASKQ_DC_BATCH		0x0010	/* Mark threads as batch */
354fa9e4066Sahrens 
355fa9e4066Sahrens #define	TQ_SLEEP	KM_SLEEP	/* Can block for memory */
356fa9e4066Sahrens #define	TQ_NOSLEEP	KM_NOSLEEP	/* cannot block for memory; may fail */
35735a5a358SJonathan Adams #define	TQ_NOQUEUE	0x02		/* Do not enqueue if can't dispatch */
35835a5a358SJonathan Adams #define	TQ_FRONT	0x08		/* Queue in front */
359fa9e4066Sahrens 
36088b7b0f2SMatthew Ahrens extern taskq_t *system_taskq;
36188b7b0f2SMatthew Ahrens 
362fa9e4066Sahrens extern taskq_t	*taskq_create(const char *, int, pri_t, int, int, uint_t);
36335a5a358SJonathan Adams #define	taskq_create_proc(a, b, c, d, e, p, f) \
36435a5a358SJonathan Adams 	    (taskq_create(a, b, c, d, e, f))
36535a5a358SJonathan Adams #define	taskq_create_sysdc(a, b, d, e, p, dc, f) \
36635a5a358SJonathan Adams 	    (taskq_create(a, b, maxclsyspri, d, e, f))
367fa9e4066Sahrens extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
368fa9e4066Sahrens extern void	taskq_destroy(taskq_t *);
369fa9e4066Sahrens extern void	taskq_wait(taskq_t *);
370fa9e4066Sahrens extern int	taskq_member(taskq_t *, void *);
37188b7b0f2SMatthew Ahrens extern void	system_taskq_init(void);
372d20e665cSRicardo M. Correia extern void	system_taskq_fini(void);
373fa9e4066Sahrens 
374da6c28aaSamw #define	XVA_MAPSIZE	3
375da6c28aaSamw #define	XVA_MAGIC	0x78766174
376da6c28aaSamw 
377fa9e4066Sahrens /*
378fa9e4066Sahrens  * vnodes
379fa9e4066Sahrens  */
380fa9e4066Sahrens typedef struct vnode {
381fa9e4066Sahrens 	uint64_t	v_size;
382fa9e4066Sahrens 	int		v_fd;
383fa9e4066Sahrens 	char		*v_path;
384fa9e4066Sahrens } vnode_t;
385fa9e4066Sahrens 
3867a286c47SDai Ngo #define	AV_SCANSTAMP_SZ	32		/* length of anti-virus scanstamp */
387da6c28aaSamw 
388da6c28aaSamw typedef struct xoptattr {
389da6c28aaSamw 	timestruc_t	xoa_createtime;	/* Create time of file */
390da6c28aaSamw 	uint8_t		xoa_archive;
391da6c28aaSamw 	uint8_t		xoa_system;
392da6c28aaSamw 	uint8_t		xoa_readonly;
393da6c28aaSamw 	uint8_t		xoa_hidden;
394da6c28aaSamw 	uint8_t		xoa_nounlink;
395da6c28aaSamw 	uint8_t		xoa_immutable;
396da6c28aaSamw 	uint8_t		xoa_appendonly;
397da6c28aaSamw 	uint8_t		xoa_nodump;
398da6c28aaSamw 	uint8_t		xoa_settable;
399da6c28aaSamw 	uint8_t		xoa_opaque;
400da6c28aaSamw 	uint8_t		xoa_av_quarantined;
401da6c28aaSamw 	uint8_t		xoa_av_modified;
4027a286c47SDai Ngo 	uint8_t		xoa_av_scanstamp[AV_SCANSTAMP_SZ];
4037a286c47SDai Ngo 	uint8_t		xoa_reparse;
404da6c28aaSamw } xoptattr_t;
405da6c28aaSamw 
406fa9e4066Sahrens typedef struct vattr {
407fa9e4066Sahrens 	uint_t		va_mask;	/* bit-mask of attributes */
408fa9e4066Sahrens 	u_offset_t	va_size;	/* file size in bytes */
409fa9e4066Sahrens } vattr_t;
410fa9e4066Sahrens 
411da6c28aaSamw 
412da6c28aaSamw typedef struct xvattr {
413da6c28aaSamw 	vattr_t		xva_vattr;	/* Embedded vattr structure */
414da6c28aaSamw 	uint32_t	xva_magic;	/* Magic Number */
415da6c28aaSamw 	uint32_t	xva_mapsize;	/* Size of attr bitmap (32-bit words) */
416da6c28aaSamw 	uint32_t	*xva_rtnattrmapp;	/* Ptr to xva_rtnattrmap[] */
417da6c28aaSamw 	uint32_t	xva_reqattrmap[XVA_MAPSIZE];	/* Requested attrs */
418da6c28aaSamw 	uint32_t	xva_rtnattrmap[XVA_MAPSIZE];	/* Returned attrs */
419da6c28aaSamw 	xoptattr_t	xva_xoptattrs;	/* Optional attributes */
420da6c28aaSamw } xvattr_t;
421da6c28aaSamw 
422da6c28aaSamw typedef struct vsecattr {
423da6c28aaSamw 	uint_t		vsa_mask;	/* See below */
424da6c28aaSamw 	int		vsa_aclcnt;	/* ACL entry count */
425da6c28aaSamw 	void		*vsa_aclentp;	/* pointer to ACL entries */
426da6c28aaSamw 	int		vsa_dfaclcnt;	/* default ACL entry count */
427da6c28aaSamw 	void		*vsa_dfaclentp;	/* pointer to default ACL entries */
428da6c28aaSamw 	size_t		vsa_aclentsz;	/* ACE size in bytes of vsa_aclentp */
429da6c28aaSamw } vsecattr_t;
430da6c28aaSamw 
431da6c28aaSamw #define	AT_TYPE		0x00001
432da6c28aaSamw #define	AT_MODE		0x00002
433da6c28aaSamw #define	AT_UID		0x00004
434da6c28aaSamw #define	AT_GID		0x00008
435da6c28aaSamw #define	AT_FSID		0x00010
436da6c28aaSamw #define	AT_NODEID	0x00020
437da6c28aaSamw #define	AT_NLINK	0x00040
438da6c28aaSamw #define	AT_SIZE		0x00080
439da6c28aaSamw #define	AT_ATIME	0x00100
440da6c28aaSamw #define	AT_MTIME	0x00200
441da6c28aaSamw #define	AT_CTIME	0x00400
442da6c28aaSamw #define	AT_RDEV		0x00800
443da6c28aaSamw #define	AT_BLKSIZE	0x01000
444da6c28aaSamw #define	AT_NBLOCKS	0x02000
445da6c28aaSamw #define	AT_SEQ		0x08000
446da6c28aaSamw #define	AT_XVATTR	0x10000
447fa9e4066Sahrens 
448fa9e4066Sahrens #define	CRCREAT		0
449fa9e4066Sahrens 
450095bcd66SGeorge Wilson extern int fop_getattr(vnode_t *vp, vattr_t *vap);
451095bcd66SGeorge Wilson 
452da6c28aaSamw #define	VOP_CLOSE(vp, f, c, o, cr, ct)	0
453da6c28aaSamw #define	VOP_PUTPAGE(vp, of, sz, fl, cr, ct)	0
454095bcd66SGeorge Wilson #define	VOP_GETATTR(vp, vap, fl, cr, ct)  fop_getattr((vp), (vap));
455fa9e4066Sahrens 
456da6c28aaSamw #define	VOP_FSYNC(vp, f, cr, ct)	fsync((vp)->v_fd)
457fa9e4066Sahrens 
458fa9e4066Sahrens #define	VN_RELE(vp)	vn_close(vp)
459fa9e4066Sahrens 
460fa9e4066Sahrens extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
461fa9e4066Sahrens     int x2, int x3);
462fa9e4066Sahrens extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
463da6c28aaSamw     int x2, int x3, vnode_t *vp, int fd);
464fa9e4066Sahrens extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
465fa9e4066Sahrens     offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
466fa9e4066Sahrens extern void vn_close(vnode_t *vp);
467fa9e4066Sahrens 
468fa9e4066Sahrens #define	vn_remove(path, x1, x2)		remove(path)
469fa9e4066Sahrens #define	vn_rename(from, to, seg)	rename((from), (to))
4700373e76bSbonwick #define	vn_is_readonly(vp)		B_FALSE
471fa9e4066Sahrens 
472fa9e4066Sahrens extern vnode_t *rootdir;
473fa9e4066Sahrens 
474fa9e4066Sahrens #include <sys/file.h>		/* for FREAD, FWRITE, etc */
475fa9e4066Sahrens 
476fa9e4066Sahrens /*
477fa9e4066Sahrens  * Random stuff
478fa9e4066Sahrens  */
479d3d50737SRafael Vanoni #define	ddi_get_lbolt()		(gethrtime() >> 23)
480d3d50737SRafael Vanoni #define	ddi_get_lbolt64()	(gethrtime() >> 23)
481fa9e4066Sahrens #define	hz	119	/* frequency when using gethrtime() >> 23 for lbolt */
482fa9e4066Sahrens 
483fa9e4066Sahrens extern void delay(clock_t ticks);
484fa9e4066Sahrens 
485fa9e4066Sahrens #define	gethrestime_sec() time(NULL)
48671eb0538SChris Kirby #define	gethrestime(t) \
48771eb0538SChris Kirby 	do {\
48871eb0538SChris Kirby 		(t)->tv_sec = gethrestime_sec();\
48971eb0538SChris Kirby 		(t)->tv_nsec = 0;\
49071eb0538SChris Kirby 	} while (0);
491fa9e4066Sahrens 
492fa9e4066Sahrens #define	max_ncpus	64
493fa9e4066Sahrens 
494fa9e4066Sahrens #define	minclsyspri	60
495fa9e4066Sahrens #define	maxclsyspri	99
496fa9e4066Sahrens 
497fa9e4066Sahrens #define	CPU_SEQID	(thr_self() & (max_ncpus - 1))
498fa9e4066Sahrens 
499fa9e4066Sahrens #define	kcred		NULL
500fa9e4066Sahrens #define	CRED()		NULL
501fa9e4066Sahrens 
50205715f94SMark Maybee #define	ptob(x)		((x) * PAGESIZE)
50305715f94SMark Maybee 
504fa9e4066Sahrens extern uint64_t physmem;
505fa9e4066Sahrens 
506fa9e4066Sahrens extern int highbit(ulong_t i);
507fa9e4066Sahrens extern int random_get_bytes(uint8_t *ptr, size_t len);
508fa9e4066Sahrens extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
509fa9e4066Sahrens 
510fa9e4066Sahrens extern void kernel_init(int);
511fa9e4066Sahrens extern void kernel_fini(void);
512fa9e4066Sahrens 
513fa9e4066Sahrens struct spa;
514fa9e4066Sahrens extern void nicenum(uint64_t num, char *buf);
515fa9e4066Sahrens extern void show_pool_stats(struct spa *);
516fa9e4066Sahrens 
517fa9e4066Sahrens typedef struct callb_cpr {
518fa9e4066Sahrens 	kmutex_t	*cc_lockp;
519fa9e4066Sahrens } callb_cpr_t;
520fa9e4066Sahrens 
521fa9e4066Sahrens #define	CALLB_CPR_INIT(cp, lockp, func, name)	{		\
522fa9e4066Sahrens 	(cp)->cc_lockp = lockp;					\
523fa9e4066Sahrens }
524fa9e4066Sahrens 
525fa9e4066Sahrens #define	CALLB_CPR_SAFE_BEGIN(cp) {				\
526fa9e4066Sahrens 	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
527fa9e4066Sahrens }
528fa9e4066Sahrens 
529fa9e4066Sahrens #define	CALLB_CPR_SAFE_END(cp, lockp) {				\
530fa9e4066Sahrens 	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
531fa9e4066Sahrens }
532fa9e4066Sahrens 
533fa9e4066Sahrens #define	CALLB_CPR_EXIT(cp) {					\
534fa9e4066Sahrens 	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
535fa9e4066Sahrens 	mutex_exit((cp)->cc_lockp);				\
536fa9e4066Sahrens }
537fa9e4066Sahrens 
538fa9e4066Sahrens #define	zone_dataset_visible(x, y)	(1)
539fa9e4066Sahrens #define	INGLOBALZONE(z)			(1)
540fa9e4066Sahrens 
541ae46e4c7SMatthew Ahrens extern char *kmem_asprintf(const char *fmt, ...);
542ae46e4c7SMatthew Ahrens #define	strfree(str) kmem_free((str), strlen(str)+1)
543ae46e4c7SMatthew Ahrens 
54495173954Sek /*
54595173954Sek  * Hostname information
54695173954Sek  */
5475679c89fSjv extern char hw_serial[];	/* for userland-emulated hostid access */
54895173954Sek extern int ddi_strtoul(const char *str, char **nptr, int base,
54995173954Sek     unsigned long *result);
55095173954Sek 
5510a586ceaSMark Shellenbaum extern int ddi_strtoull(const char *str, char **nptr, int base,
5520a586ceaSMark Shellenbaum     u_longlong_t *result);
5530a586ceaSMark Shellenbaum 
554ea8dc4b6Seschrock /* ZFS Boot Related stuff. */
555ea8dc4b6Seschrock 
556ea8dc4b6Seschrock struct _buf {
557ea8dc4b6Seschrock 	intptr_t	_fd;
558ea8dc4b6Seschrock };
559ea8dc4b6Seschrock 
560ea8dc4b6Seschrock struct bootstat {
561ea8dc4b6Seschrock 	uint64_t st_size;
562ea8dc4b6Seschrock };
563ea8dc4b6Seschrock 
564da6c28aaSamw typedef struct ace_object {
565da6c28aaSamw 	uid_t		a_who;
566da6c28aaSamw 	uint32_t	a_access_mask;
567da6c28aaSamw 	uint16_t	a_flags;
568da6c28aaSamw 	uint16_t	a_type;
569da6c28aaSamw 	uint8_t		a_obj_type[16];
570da6c28aaSamw 	uint8_t		a_inherit_obj_type[16];
571da6c28aaSamw } ace_object_t;
572da6c28aaSamw 
573da6c28aaSamw 
574da6c28aaSamw #define	ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE	0x05
575da6c28aaSamw #define	ACE_ACCESS_DENIED_OBJECT_ACE_TYPE	0x06
576da6c28aaSamw #define	ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE	0x07
577da6c28aaSamw #define	ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE	0x08
578da6c28aaSamw 
579ea8dc4b6Seschrock extern struct _buf *kobj_open_file(char *name);
580ea8dc4b6Seschrock extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
581ea8dc4b6Seschrock     unsigned off);
582ea8dc4b6Seschrock extern void kobj_close_file(struct _buf *file);
583b1b8ab34Slling extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
584ecd6cf80Smarks extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
585ecd6cf80Smarks extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
586ecd6cf80Smarks     cred_t *cr);
587ecd6cf80Smarks extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
588ecd6cf80Smarks extern zoneid_t getzoneid(void);
589ea8dc4b6Seschrock 
590e0d35c44Smarks /* SID stuff */
591e0d35c44Smarks typedef struct ksiddomain {
592e0d35c44Smarks 	uint_t	kd_ref;
593e0d35c44Smarks 	uint_t	kd_len;
594e0d35c44Smarks 	char	*kd_name;
595e0d35c44Smarks } ksiddomain_t;
596e0d35c44Smarks 
597e0d35c44Smarks ksiddomain_t *ksid_lookupdomain(const char *);
598e0d35c44Smarks void ksiddomain_rele(ksiddomain_t *);
599e0d35c44Smarks 
600573ca77eSGeorge Wilson #define	DDI_SLEEP	KM_SLEEP
601573ca77eSGeorge Wilson #define	ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
602573ca77eSGeorge Wilson 	sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
603573ca77eSGeorge Wilson 
604f0547164Slling #ifdef	__cplusplus
605f0547164Slling }
606f0547164Slling #endif
607f0547164Slling 
608fa9e4066Sahrens #endif	/* _SYS_ZFS_CONTEXT_H */
609