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OS-6363 system went to dark side of moon for ~467 seconds OS-6404 ARC reclaim should throttle its calls to arc_kmem_reap_now() Reviewed by: Bryan Cantrill <bryan@joyent.com> Reviewed by: Dan McDonald <danmcd@joyent.com>
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--- old/usr/src/lib/libzpool/common/sys/zfs_context.h
+++ new/usr/src/lib/libzpool/common/sys/zfs_context.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 24 * Copyright (c) 2012, 2016 by Delphix. All rights reserved.
25 - * Copyright (c) 2012, Joyent, Inc. All rights reserved.
25 + * Copyright (c) 2017, Joyent, Inc. All rights reserved.
26 26 */
27 27
28 28 #ifndef _SYS_ZFS_CONTEXT_H
29 29 #define _SYS_ZFS_CONTEXT_H
30 30
31 31 #ifdef __cplusplus
32 32 extern "C" {
33 33 #endif
34 34
35 35 #define _SYS_MUTEX_H
36 36 #define _SYS_RWLOCK_H
37 37 #define _SYS_CONDVAR_H
38 38 #define _SYS_SYSTM_H
39 39 #define _SYS_T_LOCK_H
40 40 #define _SYS_VNODE_H
41 41 #define _SYS_VFS_H
42 42 #define _SYS_SUNDDI_H
43 43 #define _SYS_CALLB_H
44 44
45 45 #include <stdio.h>
46 46 #include <stdlib.h>
47 47 #include <stddef.h>
48 48 #include <stdarg.h>
49 49 #include <fcntl.h>
50 50 #include <unistd.h>
51 51 #include <errno.h>
52 52 #include <string.h>
53 53 #include <strings.h>
54 54 #include <synch.h>
55 55 #include <thread.h>
56 56 #include <assert.h>
57 57 #include <alloca.h>
58 58 #include <umem.h>
59 59 #include <limits.h>
60 60 #include <atomic.h>
61 61 #include <dirent.h>
62 62 #include <time.h>
63 63 #include <procfs.h>
64 64 #include <pthread.h>
65 65 #include <setjmp.h>
66 66 #include <sys/debug.h>
67 67 #include <libsysevent.h>
68 68 #include <sys/note.h>
69 69 #include <sys/types.h>
70 70 #include <sys/cred.h>
71 71 #include <sys/sysmacros.h>
72 72 #include <sys/bitmap.h>
73 73 #include <sys/resource.h>
74 74 #include <sys/byteorder.h>
75 75 #include <sys/list.h>
76 76 #include <sys/uio.h>
77 77 #include <sys/zfs_debug.h>
78 78 #include <sys/sdt.h>
79 79 #include <sys/kstat.h>
80 80 #include <sys/u8_textprep.h>
81 81 #include <sys/sysevent/eventdefs.h>
82 82 #include <sys/sysevent/dev.h>
83 83 #include <sys/sunddi.h>
84 84 #include <sys/debug.h>
85 85 #include "zfs.h"
86 86
87 87 /*
88 88 * Debugging
89 89 */
90 90
91 91 /*
92 92 * Note that we are not using the debugging levels.
93 93 */
94 94
95 95 #define CE_CONT 0 /* continuation */
96 96 #define CE_NOTE 1 /* notice */
97 97 #define CE_WARN 2 /* warning */
98 98 #define CE_PANIC 3 /* panic */
99 99 #define CE_IGNORE 4 /* print nothing */
100 100
101 101 /*
102 102 * ZFS debugging
103 103 */
104 104
105 105 #ifdef ZFS_DEBUG
106 106 extern void dprintf_setup(int *argc, char **argv);
107 107 #endif /* ZFS_DEBUG */
108 108
109 109 extern void cmn_err(int, const char *, ...);
110 110 extern void vcmn_err(int, const char *, __va_list);
111 111 extern void panic(const char *, ...) __NORETURN;
112 112 extern void vpanic(const char *, __va_list) __NORETURN;
113 113
114 114 #define fm_panic panic
115 115
116 116 extern int aok;
117 117
118 118 /*
119 119 * DTrace SDT probes have different signatures in userland than they do in
120 120 * the kernel. If they're being used in kernel code, re-define them out of
121 121 * existence for their counterparts in libzpool.
122 122 *
123 123 * Here's an example of how to use the set-error probes in userland:
124 124 * zfs$target:::set-error /arg0 == EBUSY/ {stack();}
125 125 *
126 126 * Here's an example of how to use DTRACE_PROBE probes in userland:
127 127 * If there is a probe declared as follows:
128 128 * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
129 129 * Then you can use it as follows:
130 130 * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
131 131 * {printf("%u %p\n", arg1, arg2);}
132 132 */
133 133
134 134 #ifdef DTRACE_PROBE
135 135 #undef DTRACE_PROBE
136 136 #endif /* DTRACE_PROBE */
137 137 #define DTRACE_PROBE(a) \
138 138 ZFS_PROBE0(#a)
139 139
140 140 #ifdef DTRACE_PROBE1
141 141 #undef DTRACE_PROBE1
142 142 #endif /* DTRACE_PROBE1 */
143 143 #define DTRACE_PROBE1(a, b, c) \
144 144 ZFS_PROBE1(#a, (unsigned long)c)
145 145
146 146 #ifdef DTRACE_PROBE2
147 147 #undef DTRACE_PROBE2
148 148 #endif /* DTRACE_PROBE2 */
149 149 #define DTRACE_PROBE2(a, b, c, d, e) \
150 150 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
151 151
152 152 #ifdef DTRACE_PROBE3
153 153 #undef DTRACE_PROBE3
154 154 #endif /* DTRACE_PROBE3 */
155 155 #define DTRACE_PROBE3(a, b, c, d, e, f, g) \
156 156 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
157 157
158 158 #ifdef DTRACE_PROBE4
159 159 #undef DTRACE_PROBE4
160 160 #endif /* DTRACE_PROBE4 */
161 161 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
162 162 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
163 163 (unsigned long)i)
164 164
165 165 /*
166 166 * We use the comma operator so that this macro can be used without much
167 167 * additional code. For example, "return (EINVAL);" becomes
168 168 * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
169 169 * twice, so it should not have side effects (e.g. something like:
170 170 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
171 171 */
172 172 #define SET_ERROR(err) (ZFS_SET_ERROR(err), err)
173 173
174 174 /*
175 175 * Threads
176 176 */
177 177 #define curthread ((void *)(uintptr_t)thr_self())
178 178
179 179 #define kpreempt(x) yield()
180 180
181 181 typedef struct kthread kthread_t;
182 182
183 183 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
184 184 zk_thread_create(func, arg, len)
185 185 #define thread_exit() thr_exit(NULL)
186 186 #define thread_join(t) panic("libzpool cannot join threads")
187 187
188 188 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
189 189
190 190 /* in libzpool, p0 exists only to have its address taken */
191 191 struct proc {
192 192 uintptr_t this_is_never_used_dont_dereference_it;
193 193 };
194 194
195 195 extern struct proc p0;
196 196 #define curproc (&p0)
197 197
198 198 #define PS_NONE -1
199 199
200 200 extern kthread_t *zk_thread_create(void (*func)(void*), void *arg,
201 201 uint64_t len);
202 202
203 203 #define issig(why) (FALSE)
204 204 #define ISSIG(thr, why) (FALSE)
205 205
206 206 /*
207 207 * Mutexes
208 208 */
209 209 typedef struct kmutex {
210 210 void *m_owner;
211 211 boolean_t initialized;
212 212 mutex_t m_lock;
213 213 } kmutex_t;
214 214
215 215 #define MUTEX_DEFAULT USYNC_THREAD
216 216 #undef MUTEX_HELD
217 217 #undef MUTEX_NOT_HELD
218 218 #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock)
219 219 #define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
220 220
221 221 /*
222 222 * Argh -- we have to get cheesy here because the kernel and userland
223 223 * have different signatures for the same routine.
224 224 */
225 225 extern int _mutex_init(mutex_t *mp, int type, void *arg);
226 226 extern int _mutex_destroy(mutex_t *mp);
227 227
228 228 #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
229 229 #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
230 230 #define mutex_enter(mp) zmutex_enter(mp)
231 231 #define mutex_exit(mp) zmutex_exit(mp)
232 232
233 233 extern void zmutex_init(kmutex_t *mp);
234 234 extern void zmutex_destroy(kmutex_t *mp);
235 235 extern void zmutex_enter(kmutex_t *mp);
236 236 extern void zmutex_exit(kmutex_t *mp);
237 237 extern int mutex_tryenter(kmutex_t *mp);
238 238 extern void *mutex_owner(kmutex_t *mp);
239 239
240 240 /*
241 241 * RW locks
242 242 */
243 243 typedef struct krwlock {
244 244 void *rw_owner;
245 245 boolean_t initialized;
246 246 rwlock_t rw_lock;
247 247 } krwlock_t;
248 248
249 249 typedef int krw_t;
250 250
251 251 #define RW_READER 0
252 252 #define RW_WRITER 1
253 253 #define RW_DEFAULT USYNC_THREAD
254 254
255 255 #undef RW_READ_HELD
256 256 #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock)
257 257
258 258 #undef RW_WRITE_HELD
259 259 #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock)
260 260
261 261 #undef RW_LOCK_HELD
262 262 #define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
263 263
264 264 extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
265 265 extern void rw_destroy(krwlock_t *rwlp);
266 266 extern void rw_enter(krwlock_t *rwlp, krw_t rw);
267 267 extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
268 268 extern int rw_tryupgrade(krwlock_t *rwlp);
269 269 extern void rw_exit(krwlock_t *rwlp);
270 270 #define rw_downgrade(rwlp) do { } while (0)
271 271
272 272 extern uid_t crgetuid(cred_t *cr);
273 273 extern uid_t crgetruid(cred_t *cr);
274 274 extern gid_t crgetgid(cred_t *cr);
275 275 extern int crgetngroups(cred_t *cr);
276 276 extern gid_t *crgetgroups(cred_t *cr);
277 277
278 278 /*
279 279 * Condition variables
280 280 */
281 281 typedef cond_t kcondvar_t;
282 282
283 283 #define CV_DEFAULT USYNC_THREAD
284 284 #define CALLOUT_FLAG_ABSOLUTE 0x2
285 285
286 286 extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
287 287 extern void cv_destroy(kcondvar_t *cv);
288 288 extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
289 289 extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
290 290 extern clock_t cv_timedwait_hires(kcondvar_t *cvp, kmutex_t *mp, hrtime_t tim,
291 291 hrtime_t res, int flag);
292 292 extern void cv_signal(kcondvar_t *cv);
293 293 extern void cv_broadcast(kcondvar_t *cv);
294 294
295 295 /*
296 296 * Thread-specific data
297 297 */
298 298 #define tsd_get(k) pthread_getspecific(k)
299 299 #define tsd_set(k, v) pthread_setspecific(k, v)
300 300 #define tsd_create(kp, d) pthread_key_create(kp, d)
301 301 #define tsd_destroy(kp) /* nothing */
302 302
303 303 /*
304 304 * kstat creation, installation and deletion
305 305 */
306 306 extern kstat_t *kstat_create(const char *, int,
307 307 const char *, const char *, uchar_t, ulong_t, uchar_t);
308 308 extern void kstat_named_init(kstat_named_t *, const char *, uchar_t);
309 309 extern void kstat_install(kstat_t *);
310 310 extern void kstat_delete(kstat_t *);
311 311 extern void kstat_waitq_enter(kstat_io_t *);
312 312 extern void kstat_waitq_exit(kstat_io_t *);
313 313 extern void kstat_runq_enter(kstat_io_t *);
314 314 extern void kstat_runq_exit(kstat_io_t *);
315 315 extern void kstat_waitq_to_runq(kstat_io_t *);
316 316 extern void kstat_runq_back_to_waitq(kstat_io_t *);
317 317
318 318 /*
319 319 * Kernel memory
320 320 */
321 321 #define KM_SLEEP UMEM_NOFAIL
322 322 #define KM_PUSHPAGE KM_SLEEP
323 323 #define KM_NOSLEEP UMEM_DEFAULT
324 324 #define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */
325 325 #define KMC_NODEBUG UMC_NODEBUG
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326 326 #define KMC_NOTOUCH 0 /* not needed for userland caches */
327 327 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
328 328 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
329 329 #define kmem_free(_b, _s) umem_free(_b, _s)
330 330 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
331 331 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
332 332 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
333 333 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
334 334 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
335 335 #define kmem_debugging() 0
336 -#define kmem_cache_reap_now(_c) /* nothing */
336 +#define kmem_cache_reap_active() (B_FALSE)
337 +#define kmem_cache_reap_soon(_c) /* nothing */
337 338 #define kmem_cache_set_move(_c, _cb) /* nothing */
338 339 #define vmem_qcache_reap(_v) /* nothing */
339 340 #define POINTER_INVALIDATE(_pp) /* nothing */
340 341 #define POINTER_IS_VALID(_p) 0
341 342
342 343 extern vmem_t *zio_arena;
343 344
344 345 typedef umem_cache_t kmem_cache_t;
345 346
346 347 typedef enum kmem_cbrc {
347 348 KMEM_CBRC_YES,
348 349 KMEM_CBRC_NO,
349 350 KMEM_CBRC_LATER,
350 351 KMEM_CBRC_DONT_NEED,
351 352 KMEM_CBRC_DONT_KNOW
352 353 } kmem_cbrc_t;
353 354
354 355 /*
355 356 * Task queues
356 357 */
357 358 typedef struct taskq taskq_t;
358 359 typedef uintptr_t taskqid_t;
359 360 typedef void (task_func_t)(void *);
360 361
361 362 typedef struct taskq_ent {
362 363 struct taskq_ent *tqent_next;
363 364 struct taskq_ent *tqent_prev;
364 365 task_func_t *tqent_func;
365 366 void *tqent_arg;
366 367 uintptr_t tqent_flags;
367 368 } taskq_ent_t;
368 369
369 370 #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
370 371
371 372 #define TASKQ_PREPOPULATE 0x0001
372 373 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
373 374 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
374 375 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
375 376 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
376 377
377 378 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
378 379 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
379 380 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
380 381 #define TQ_FRONT 0x08 /* Queue in front */
381 382
382 383
383 384 extern taskq_t *system_taskq;
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384 385
385 386 extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
386 387 #define taskq_create_proc(a, b, c, d, e, p, f) \
387 388 (taskq_create(a, b, c, d, e, f))
388 389 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
389 390 (taskq_create(a, b, maxclsyspri, d, e, f))
390 391 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
391 392 extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t,
392 393 taskq_ent_t *);
393 394 extern void taskq_destroy(taskq_t *);
395 +extern boolean_t taskq_empty(taskq_t *);
394 396 extern void taskq_wait(taskq_t *);
395 397 extern int taskq_member(taskq_t *, void *);
396 398 extern void system_taskq_init(void);
397 399 extern void system_taskq_fini(void);
398 400
399 401 #define XVA_MAPSIZE 3
400 402 #define XVA_MAGIC 0x78766174
401 403
402 404 /*
403 405 * vnodes
404 406 */
405 407 typedef struct vnode {
406 408 uint64_t v_size;
407 409 int v_fd;
408 410 char *v_path;
409 411 int v_dump_fd;
410 412 } vnode_t;
411 413
412 414 extern char *vn_dumpdir;
413 415 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
414 416
415 417 typedef struct xoptattr {
416 418 timestruc_t xoa_createtime; /* Create time of file */
417 419 uint8_t xoa_archive;
418 420 uint8_t xoa_system;
419 421 uint8_t xoa_readonly;
420 422 uint8_t xoa_hidden;
421 423 uint8_t xoa_nounlink;
422 424 uint8_t xoa_immutable;
423 425 uint8_t xoa_appendonly;
424 426 uint8_t xoa_nodump;
425 427 uint8_t xoa_settable;
426 428 uint8_t xoa_opaque;
427 429 uint8_t xoa_av_quarantined;
428 430 uint8_t xoa_av_modified;
429 431 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
430 432 uint8_t xoa_reparse;
431 433 uint8_t xoa_offline;
432 434 uint8_t xoa_sparse;
433 435 } xoptattr_t;
434 436
435 437 typedef struct vattr {
436 438 uint_t va_mask; /* bit-mask of attributes */
437 439 u_offset_t va_size; /* file size in bytes */
438 440 } vattr_t;
439 441
440 442
441 443 typedef struct xvattr {
442 444 vattr_t xva_vattr; /* Embedded vattr structure */
443 445 uint32_t xva_magic; /* Magic Number */
444 446 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
445 447 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
446 448 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
447 449 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
448 450 xoptattr_t xva_xoptattrs; /* Optional attributes */
449 451 } xvattr_t;
450 452
451 453 typedef struct vsecattr {
452 454 uint_t vsa_mask; /* See below */
453 455 int vsa_aclcnt; /* ACL entry count */
454 456 void *vsa_aclentp; /* pointer to ACL entries */
455 457 int vsa_dfaclcnt; /* default ACL entry count */
456 458 void *vsa_dfaclentp; /* pointer to default ACL entries */
457 459 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
458 460 } vsecattr_t;
459 461
460 462 #define AT_TYPE 0x00001
461 463 #define AT_MODE 0x00002
462 464 #define AT_UID 0x00004
463 465 #define AT_GID 0x00008
464 466 #define AT_FSID 0x00010
465 467 #define AT_NODEID 0x00020
466 468 #define AT_NLINK 0x00040
467 469 #define AT_SIZE 0x00080
468 470 #define AT_ATIME 0x00100
469 471 #define AT_MTIME 0x00200
470 472 #define AT_CTIME 0x00400
471 473 #define AT_RDEV 0x00800
472 474 #define AT_BLKSIZE 0x01000
473 475 #define AT_NBLOCKS 0x02000
474 476 #define AT_SEQ 0x08000
475 477 #define AT_XVATTR 0x10000
476 478
477 479 #define CRCREAT 0
478 480
479 481 extern int fop_getattr(vnode_t *vp, vattr_t *vap);
480 482
481 483 #define VOP_CLOSE(vp, f, c, o, cr, ct) 0
482 484 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
483 485 #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
484 486
485 487 #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
486 488
487 489 #define VN_RELE(vp) vn_close(vp)
488 490
489 491 extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
490 492 int x2, int x3);
491 493 extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
492 494 int x2, int x3, vnode_t *vp, int fd);
493 495 extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
494 496 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
495 497 extern void vn_close(vnode_t *vp);
496 498
497 499 #define vn_remove(path, x1, x2) remove(path)
498 500 #define vn_rename(from, to, seg) rename((from), (to))
499 501 #define vn_is_readonly(vp) B_FALSE
500 502
501 503 extern vnode_t *rootdir;
502 504
503 505 #include <sys/file.h> /* for FREAD, FWRITE, etc */
504 506
505 507 /*
506 508 * Random stuff
507 509 */
508 510 #define ddi_get_lbolt() (gethrtime() >> 23)
509 511 #define ddi_get_lbolt64() (gethrtime() >> 23)
510 512 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
511 513
512 514 extern void delay(clock_t ticks);
513 515
514 516 #define SEC_TO_TICK(sec) ((sec) * hz)
515 517 #define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
516 518
517 519 #define gethrestime_sec() time(NULL)
518 520 #define gethrestime(t) \
519 521 do {\
520 522 (t)->tv_sec = gethrestime_sec();\
521 523 (t)->tv_nsec = 0;\
522 524 } while (0);
523 525
524 526 #define max_ncpus 64
525 527 #define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))
526 528
527 529 #define minclsyspri 60
528 530 #define maxclsyspri 99
529 531
530 532 #define CPU_SEQID (thr_self() & (max_ncpus - 1))
531 533
532 534 #define kcred NULL
533 535 #define CRED() NULL
534 536
535 537 #define ptob(x) ((x) * PAGESIZE)
536 538
537 539 extern uint64_t physmem;
538 540
539 541 extern int highbit64(uint64_t i);
540 542 extern int random_get_bytes(uint8_t *ptr, size_t len);
541 543 extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
542 544
543 545 extern void kernel_init(int);
544 546 extern void kernel_fini(void);
545 547
546 548 struct spa;
547 549 extern void nicenum(uint64_t num, char *buf, size_t);
548 550 extern void show_pool_stats(struct spa *);
549 551 extern int set_global_var(char *arg);
550 552
551 553 typedef struct callb_cpr {
552 554 kmutex_t *cc_lockp;
553 555 } callb_cpr_t;
554 556
555 557 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
556 558 (cp)->cc_lockp = lockp; \
557 559 }
558 560
559 561 #define CALLB_CPR_SAFE_BEGIN(cp) { \
560 562 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
561 563 }
562 564
563 565 #define CALLB_CPR_SAFE_END(cp, lockp) { \
564 566 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
565 567 }
566 568
567 569 #define CALLB_CPR_EXIT(cp) { \
568 570 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
569 571 mutex_exit((cp)->cc_lockp); \
570 572 }
571 573
572 574 #define zone_dataset_visible(x, y) (1)
573 575 #define INGLOBALZONE(z) (1)
574 576
575 577 extern char *kmem_asprintf(const char *fmt, ...);
576 578 #define strfree(str) kmem_free((str), strlen(str) + 1)
577 579
578 580 /*
579 581 * Hostname information
580 582 */
581 583 extern char hw_serial[]; /* for userland-emulated hostid access */
582 584 extern int ddi_strtoul(const char *str, char **nptr, int base,
583 585 unsigned long *result);
584 586
585 587 extern int ddi_strtoull(const char *str, char **nptr, int base,
586 588 u_longlong_t *result);
587 589
588 590 /* ZFS Boot Related stuff. */
589 591
590 592 struct _buf {
591 593 intptr_t _fd;
592 594 };
593 595
594 596 struct bootstat {
595 597 uint64_t st_size;
596 598 };
597 599
598 600 typedef struct ace_object {
599 601 uid_t a_who;
600 602 uint32_t a_access_mask;
601 603 uint16_t a_flags;
602 604 uint16_t a_type;
603 605 uint8_t a_obj_type[16];
604 606 uint8_t a_inherit_obj_type[16];
605 607 } ace_object_t;
606 608
607 609
608 610 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
609 611 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
610 612 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
611 613 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
612 614
613 615 extern struct _buf *kobj_open_file(char *name);
614 616 extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
615 617 unsigned off);
616 618 extern void kobj_close_file(struct _buf *file);
617 619 extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
618 620 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
619 621 extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
620 622 cred_t *cr);
621 623 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
622 624 extern zoneid_t getzoneid(void);
623 625
624 626 /* SID stuff */
625 627 typedef struct ksiddomain {
626 628 uint_t kd_ref;
627 629 uint_t kd_len;
628 630 char *kd_name;
629 631 } ksiddomain_t;
630 632
631 633 ksiddomain_t *ksid_lookupdomain(const char *);
632 634 void ksiddomain_rele(ksiddomain_t *);
633 635
634 636 #define DDI_SLEEP KM_SLEEP
635 637 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
636 638 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
637 639
638 640 /*
639 641 * Cyclic information
640 642 */
641 643 extern kmutex_t cpu_lock;
642 644
643 645 typedef uintptr_t cyclic_id_t;
644 646 typedef uint16_t cyc_level_t;
645 647 typedef void (*cyc_func_t)(void *);
646 648
647 649 #define CY_LOW_LEVEL 0
648 650 #define CY_INFINITY INT64_MAX
649 651 #define CYCLIC_NONE ((cyclic_id_t)0)
650 652
651 653 typedef struct cyc_time {
652 654 hrtime_t cyt_when;
653 655 hrtime_t cyt_interval;
654 656 } cyc_time_t;
655 657
656 658 typedef struct cyc_handler {
657 659 cyc_func_t cyh_func;
658 660 void *cyh_arg;
659 661 cyc_level_t cyh_level;
660 662 } cyc_handler_t;
661 663
662 664 extern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
663 665 extern void cyclic_remove(cyclic_id_t);
664 666 extern int cyclic_reprogram(cyclic_id_t, hrtime_t);
665 667
666 668 /*
667 669 * Buf structure
668 670 */
669 671 #define B_BUSY 0x0001
670 672 #define B_DONE 0x0002
671 673 #define B_ERROR 0x0004
672 674 #define B_READ 0x0040 /* read when I/O occurs */
673 675 #define B_WRITE 0x0100 /* non-read pseudo-flag */
674 676
675 677 typedef struct buf {
676 678 int b_flags;
677 679 size_t b_bcount;
678 680 union {
679 681 caddr_t b_addr;
680 682 } b_un;
681 683
682 684 lldaddr_t _b_blkno;
683 685 #define b_lblkno _b_blkno._f
684 686 size_t b_resid;
685 687 size_t b_bufsize;
686 688 int (*b_iodone)(struct buf *);
687 689 int b_error;
688 690 void *b_private;
689 691 } buf_t;
690 692
691 693 extern void bioinit(buf_t *);
692 694 extern void biodone(buf_t *);
693 695 extern void bioerror(buf_t *, int);
694 696 extern int geterror(buf_t *);
695 697
696 698 #ifdef __cplusplus
697 699 }
698 700 #endif
699 701
700 702 #endif /* _SYS_ZFS_CONTEXT_H */
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