1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <libcfs/kp30.h>
28 /* global variables */
29 extern atomic_t obd_memory;
30 extern int obd_memmax;
31 extern unsigned int obd_fail_loc;
32 extern unsigned int obd_debug_peer_on_timeout;
33 extern unsigned int obd_dump_on_timeout;
34 extern unsigned int obd_dump_on_eviction;
35 extern unsigned int obd_timeout; /* seconds */
36 #define PING_INTERVAL max(obd_timeout / 4, 1U)
37 #define RECONNECT_INTERVAL max(obd_timeout / 10, 10U)
38 extern unsigned int ldlm_timeout;
39 extern unsigned int obd_health_check_timeout;
40 extern unsigned int obd_sync_filter;
41 extern unsigned int obd_max_dirty_pages;
42 extern atomic_t obd_dirty_pages;
43 extern cfs_waitq_t obd_race_waitq;
44 extern int obd_race_state;
46 /* Timeout definitions */
47 #define LDLM_TIMEOUT_DEFAULT 20
48 #define OBD_TIMEOUT_DEFAULT 100
49 #define HEALTH_CHECK_COEF 3 / 2
50 #define HEALTH_CHECK_TIMEOUT_DEFAULT (OBD_TIMEOUT_DEFAULT * HEALTH_CHECK_COEF)
51 #define HEALTH_CHECK_TIMEOUT (obd_timeout * HEALTH_CHECK_COEF)
53 #define OBD_FAIL_MDS 0x100
54 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
55 #define OBD_FAIL_MDS_GETATTR_NET 0x102
56 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
57 #define OBD_FAIL_MDS_READPAGE_NET 0x104
58 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
59 #define OBD_FAIL_MDS_SENDPAGE 0x106
60 #define OBD_FAIL_MDS_REINT_NET 0x107
61 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
62 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
63 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
64 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
65 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
66 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
67 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
68 #define OBD_FAIL_MDS_REINT_LINK 0x10f
69 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
70 #define OBD_FAIL_MDS_REINT_RENAME 0x111
71 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
72 #define OBD_FAIL_MDS_OPEN_NET 0x113
73 #define OBD_FAIL_MDS_OPEN_PACK 0x114
74 #define OBD_FAIL_MDS_CLOSE_NET 0x115
75 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
76 #define OBD_FAIL_MDS_CONNECT_NET 0x117
77 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
78 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
79 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
80 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
81 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
82 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
83 #define OBD_FAIL_MDS_STATFS_NET 0x11e
84 #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f
85 #define OBD_FAIL_MDS_PIN_NET 0x120
86 #define OBD_FAIL_MDS_UNPIN_NET 0x121
87 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122
88 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123
89 #define OBD_FAIL_MDS_SYNC_NET 0x124
90 #define OBD_FAIL_MDS_SYNC_PACK 0x125
91 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126
92 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127
93 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128
94 #define OBD_FAIL_MDS_PAUSE_OPEN 0x129
95 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP 0x12a
96 #define OBD_FAIL_MDS_OPEN_CREATE 0x12b
97 #define OBD_FAIL_MDS_OST_SETATTR 0x12c
98 #define OBD_FAIL_MDS_QUOTACHECK_NET 0x12d
99 #define OBD_FAIL_MDS_QUOTACTL_NET 0x12e
100 #define OBD_FAIL_MDS_CLIENT_ADD 0x12f
101 #define OBD_FAIL_MDS_GETXATTR_NET 0x130
102 #define OBD_FAIL_MDS_GETXATTR_PACK 0x131
103 #define OBD_FAIL_MDS_SETXATTR_NET 0x132
104 #define OBD_FAIL_MDS_SETXATTR 0x133
105 #define OBD_FAIL_MDS_SETXATTR_WRITE 0x134
106 #define OBD_FAIL_MDS_FS_SETUP 0x135
107 #define OBD_FAIL_MDS_RESEND 0x136
108 #define OBD_FAIL_MDS_IS_SUBDIR_NET 0x137
109 #define OBD_FAIL_MDS_IS_SUBDIR_PACK 0x138
110 #define OBD_FAIL_MDS_SET_INFO_NET 0x139
111 #define OBD_FAIL_MDS_WRITEPAGE_NET 0x13a
112 #define OBD_FAIL_MDS_WRITEPAGE_PACK 0x13b
113 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED 0x13c
114 #define OBD_FAIL_MDS_OSC_PRECREATE 0x13d
116 #define OBD_FAIL_OST 0x200
117 #define OBD_FAIL_OST_CONNECT_NET 0x201
118 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
119 #define OBD_FAIL_OST_GET_INFO_NET 0x203
120 #define OBD_FAIL_OST_CREATE_NET 0x204
121 #define OBD_FAIL_OST_DESTROY_NET 0x205
122 #define OBD_FAIL_OST_GETATTR_NET 0x206
123 #define OBD_FAIL_OST_SETATTR_NET 0x207
124 #define OBD_FAIL_OST_OPEN_NET 0x208
125 #define OBD_FAIL_OST_CLOSE_NET 0x209
126 #define OBD_FAIL_OST_BRW_NET 0x20a
127 #define OBD_FAIL_OST_PUNCH_NET 0x20b
128 #define OBD_FAIL_OST_STATFS_NET 0x20c
129 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
130 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
131 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
132 #define OBD_FAIL_OST_SYNC_NET 0x210
133 #define OBD_FAIL_OST_ALL_REPLY_NET 0x211
134 #define OBD_FAIL_OST_ALL_REQUESTS_NET 0x212
135 #define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
136 #define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
137 #define OBD_FAIL_OST_ENOSPC 0x215
138 #define OBD_FAIL_OST_EROFS 0x216
139 #define OBD_FAIL_OST_ENOENT 0x217
140 #define OBD_FAIL_OST_QUOTACHECK_NET 0x218
141 #define OBD_FAIL_OST_QUOTACTL_NET 0x219
142 #define OBD_FAIL_OST_CHECKSUM_RECEIVE 0x21a
143 #define OBD_FAIL_OST_CHECKSUM_SEND 0x21b
144 #define OBD_FAIL_OST_BRW_SIZE 0x21c
145 #define OBD_FAIL_OST_DROP_REQ 0x21d
146 #define OBD_FAIL_OST_SETATTR_CREDITS 0x21e
147 #define OBD_FAIL_OST_HOLD_WRITE_RPC 0x21f
149 #define OBD_FAIL_LDLM 0x300
150 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
151 #define OBD_FAIL_LDLM_ENQUEUE 0x302
152 #define OBD_FAIL_LDLM_CONVERT 0x303
153 #define OBD_FAIL_LDLM_CANCEL 0x304
154 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
155 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
156 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307
157 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
158 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
159 #define OBD_FAIL_LDLM_CREATE_RESOURCE 0x30a
160 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED 0x30b
161 #define OBD_FAIL_LDLM_REPLY 0x30c
162 #define OBD_FAIL_LDLM_RECOV_CLIENTS 0x30d
163 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
164 #define OBD_FAIL_LDLM_GLIMPSE 0x30f
165 #define OBD_FAIL_LDLM_CANCEL_RACE 0x310
166 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE 0x311
168 #define OBD_FAIL_OSC 0x400
169 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
170 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
171 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
172 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
173 #define OBD_FAIL_OSC_MATCH 0x405
174 #define OBD_FAIL_OSC_BRW_PREP_REQ 0x406
175 #define OBD_FAIL_OSC_SHUTDOWN 0x407
176 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE 0x408
177 #define OBD_FAIL_OSC_CHECKSUM_SEND 0x409
179 #define OBD_FAIL_PTLRPC 0x500
180 #define OBD_FAIL_PTLRPC_ACK 0x501
181 #define OBD_FAIL_PTLRPC_RQBD 0x502
182 #define OBD_FAIL_PTLRPC_BULK_GET_NET 0x503
183 #define OBD_FAIL_PTLRPC_BULK_PUT_NET 0x504
184 #define OBD_FAIL_PTLRPC_DROP_RPC 0x505
185 #define OBD_FAIL_PTLRPC_DELAY_SEND 0x506
186 #define OBD_FAIL_PTLRPC_DELAY_RECOV 0x507
188 #define OBD_FAIL_OBD_PING_NET 0x600
189 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
190 #define OBD_FAIL_OBD_LOGD_NET 0x602
191 #define OBD_FAIL_OBD_QC_CALLBACK_NET 0x603
192 #define OBD_FAIL_OBD_DQACQ 0x604
194 #define OBD_FAIL_TGT_REPLY_NET 0x700
195 #define OBD_FAIL_TGT_CONN_RACE 0x701
196 #define OBD_FAIL_TGT_FORCE_RECONNECT 0x702
197 #define OBD_FAIL_TGT_DELAY_CONNECT 0x703
198 #define OBD_FAIL_TGT_DELAY_RECONNECT 0x704
199 #define OBD_FAIL_TGT_DELAY_PRECREATE 0x705
201 #define OBD_FAIL_MDC_REVALIDATE_PAUSE 0x800
202 #define OBD_FAIL_MDC_ENQUEUE_PAUSE 0x801
204 #define OBD_FAIL_MGS 0x900
205 #define OBD_FAIL_MGS_ALL_REQUEST_NET 0x901
206 #define OBD_FAIL_MGS_ALL_REPLY_NET 0x902
207 #define OBD_FAIL_MGC_PROCESS_LOG 0x903
208 #define OBD_FAIL_MGS_SLOW_REQUEST_NET 0x904
209 #define OBD_FAIL_MGS_SLOW_TARGET_REG 0x905
211 #define OBD_FAIL_QUOTA_QD_COUNT_32BIT 0xa00
213 #define OBD_FAIL_LPROC_REMOVE 0xb00
215 #define OBD_FAIL_SEQ 0x1000
216 #define OBD_FAIL_SEQ_QUERY_NET 0x1001
218 #define OBD_FAIL_FLD 0x1100
219 #define OBD_FAIL_FLD_QUERY_NET 0x1101
221 #define OBD_FAIL_SEC_CTX 0x1200
222 #define OBD_FAIL_SEC_CTX_INIT_NET 0x1201
223 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET 0x1202
224 #define OBD_FAIL_SEC_CTX_FINI_NET 0x1203
226 /* preparation for a more advanced failure testbed (not functional yet) */
227 #define OBD_FAIL_MASK_SYS 0x0000FF00
228 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
229 #define OBD_FAIL_ONCE 0x80000000
230 #define OBD_FAILED 0x40000000
232 #define OBD_FAIL_CHECK(id) (((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
233 ((id) & OBD_FAIL_MASK_LOC)) && \
234 ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!= \
235 (OBD_FAILED | OBD_FAIL_ONCE)))
237 #define OBD_FAIL_CHECK_ONCE(id) \
239 if (unlikely(OBD_FAIL_CHECK(id))) { \
240 CERROR("*** obd_fail_loc=0x%x ***\n", id); \
241 obd_fail_loc |= OBD_FAILED; \
242 if ((id) & OBD_FAIL_ONCE) \
243 obd_fail_loc |= OBD_FAIL_ONCE; \
249 #define OBD_FAIL_RETURN(id, ret) \
251 if (unlikely(OBD_FAIL_CHECK_ONCE(id))) { \
256 #define OBD_FAIL_TIMEOUT(id, secs) \
258 if (unlikely(OBD_FAIL_CHECK_ONCE(id))) { \
259 CERROR("obd_fail_timeout id %x sleeping for %d secs\n", \
261 set_current_state(TASK_UNINTERRUPTIBLE); \
262 cfs_schedule_timeout(CFS_TASK_UNINT, \
263 cfs_time_seconds(secs)); \
264 set_current_state(TASK_RUNNING); \
265 CERROR("obd_fail_timeout id %x awake\n", (id)); \
270 /* The idea here is to synchronise two threads to force a race. The
271 * first thread that calls this with a matching fail_loc is put to
272 * sleep. The next thread that calls with the same fail_loc wakes up
273 * the first and continues. */
274 #define OBD_RACE(id) \
276 if (unlikely(OBD_FAIL_CHECK_ONCE(id))) { \
277 obd_race_state = 0; \
278 CERROR("obd_race id %x sleeping\n", (id)); \
279 OBD_SLEEP_ON(obd_race_waitq, obd_race_state != 0); \
280 CERROR("obd_fail_race id %x awake\n", (id)); \
281 } else if ((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
282 ((id) & OBD_FAIL_MASK_LOC)) { \
283 CERROR("obd_fail_race id %x waking\n", (id)); \
284 obd_race_state = 1; \
285 wake_up(&obd_race_waitq); \
289 /* sigh. an expedient fix until OBD_RACE is fixed up */
290 #define OBD_RACE(foo) do {} while(0)
293 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
295 extern atomic_t libcfs_kmemory;
297 #if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
299 #define OBD_MT_WRONG_SIZE (1 << 0)
300 #define OBD_MT_ALREADY_FREED (1 << 1)
301 #define OBD_MT_LOC_LEN 128
303 struct obd_mem_track {
304 struct hlist_node mt_hash;
305 char mt_loc[OBD_MT_LOC_LEN];
311 void lvfs_memdbg_show(void);
312 void lvfs_memdbg_insert(struct obd_mem_track *mt);
313 void lvfs_memdbg_remove(struct obd_mem_track *mt);
314 struct obd_mem_track *lvfs_memdbg_find(void *ptr);
316 int lvfs_memdbg_check_insert(struct obd_mem_track *mt);
317 struct obd_mem_track *lvfs_memdbg_check_remove(void *ptr);
319 static inline struct obd_mem_track *
320 __new_mem_track(void *ptr, int size,
321 char *file, int line)
323 struct obd_mem_track *mt;
325 mt = kmalloc(sizeof(*mt), GFP_KERNEL);
329 snprintf(mt->mt_loc, sizeof(mt->mt_loc) - 1,
330 "%s:%d", file, line);
339 __free_mem_track(struct obd_mem_track *mt)
345 __get_mem_track(void *ptr, int size,
346 char *file, int line)
348 struct obd_mem_track *mt;
350 mt = __new_mem_track(ptr, size, file, line);
352 CWARN("Can't allocate new memory track\n");
356 if (!lvfs_memdbg_check_insert(mt))
357 __free_mem_track(mt);
363 __put_mem_track(void *ptr, int size,
364 char *file, int line)
366 struct obd_mem_track *mt;
368 if (unlikely(!(mt = lvfs_memdbg_check_remove(ptr)))) {
369 CWARN("Ptr 0x%p is not allocated. Attempt to free "
370 "not allocated memory at %s:%d\n", ptr,
375 if (unlikely(mt->mt_size != size)) {
376 if (!(mt->mt_flags & OBD_MT_ALREADY_FREED)) {
377 mt->mt_flags |= (OBD_MT_WRONG_SIZE |
378 OBD_MT_ALREADY_FREED);
380 CWARN("Freeing memory chunk (at 0x%p) of "
381 "different size than allocated "
382 "(%d != %d) at %s:%d, allocated at %s\n",
383 ptr, mt->mt_size, size, file, line,
387 __free_mem_track(mt);
393 #define get_mem_track(ptr, size, file, line) \
394 __get_mem_track((ptr), (size), (file), (line))
396 #define put_mem_track(ptr, size, file, line) \
397 __put_mem_track((ptr), (size), (file), (line))
399 #else /* !CONFIG_DEBUG_MEMORY */
401 #define get_mem_track(ptr, size, file, line) \
404 #define put_mem_track(ptr, size, file, line) \
406 #endif /* !CONFIG_DEBUG_MEMORY */
408 #define OBD_DEBUG_MEMUSAGE (1)
410 #if OBD_DEBUG_MEMUSAGE
411 #define OBD_ALLOC_POST(ptr, size, name) \
412 atomic_add(size, &obd_memory); \
413 if (atomic_read(&obd_memory) > obd_memmax) \
414 obd_memmax = atomic_read(&obd_memory); \
415 get_mem_track((ptr), (size), __FILE__, __LINE__); \
416 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p (tot %d)\n", \
417 (int)(size), ptr, atomic_read(&obd_memory))
419 #define OBD_FREE_PRE(ptr, size, name) \
421 put_mem_track((ptr), (size), __FILE__, __LINE__); \
422 atomic_sub(size, &obd_memory); \
423 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p (tot %d).\n", \
424 (int)(size), ptr, atomic_read(&obd_memory)); \
425 POISON(ptr, 0x5a, size)
427 #else /* !OBD_DEBUG_MEMUSAGE */
429 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
430 #define OBD_FREE_PRE(ptr, size, name) ((void)0)
432 #endif /* !OBD_DEBUG_MEMUSAGE */
434 #if defined(LUSTRE_UTILS) /* this version is for utils only */
435 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
437 (ptr) = cfs_alloc(size, (gfp_mask)); \
438 if (unlikely((ptr) == NULL)) { \
439 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
440 (int)(size), __FILE__, __LINE__); \
442 memset(ptr, 0, size); \
443 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n", \
447 #else /* this version is for the kernel and liblustre */
448 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
450 (ptr) = cfs_alloc(size, (gfp_mask)); \
451 if (unlikely((ptr) == NULL)) { \
452 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
453 (int)(size), __FILE__, __LINE__); \
454 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
455 atomic_read(&obd_memory), atomic_read(&libcfs_kmemory));\
457 memset(ptr, 0, size); \
458 OBD_ALLOC_POST(ptr, size, "kmalloced"); \
463 #ifndef OBD_ALLOC_MASK
464 # define OBD_ALLOC_MASK CFS_ALLOC_IO
467 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_ALLOC_MASK)
468 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, CFS_ALLOC_STD)
469 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
470 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
473 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
475 # define OBD_VMALLOC(ptr, size) \
477 (ptr) = cfs_alloc_large(size); \
478 if (unlikely((ptr) == NULL)) { \
479 CERROR("vmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
480 (int)(size), __FILE__, __LINE__); \
481 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
482 atomic_read(&obd_memory), atomic_read(&libcfs_kmemory));\
484 memset(ptr, 0, size); \
485 OBD_ALLOC_POST(ptr, size, "vmalloced"); \
490 #ifdef CONFIG_DEBUG_SLAB
491 #define POISON(ptr, c, s) do {} while (0)
492 #define POISON_PTR(ptr) ((void)0)
494 #define POISON(ptr, c, s) memset(ptr, c, s)
495 #define POISON_PTR(ptr) (ptr) = (void *)0xdeadbeef
499 #define POISON_PAGE(page, val) do { memset(kmap(page), val, CFS_PAGE_SIZE); \
500 kunmap(page); } while (0)
502 #define POISON_PAGE(page, val) do { } while (0)
506 #define OBD_FREE(ptr, size) \
508 OBD_FREE_PRE(ptr, size, "kfreed"); \
515 # ifdef HAVE_CALL_RCU_PARAM
516 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb, rcu)
518 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb)
521 # define my_call_rcu(rcu, cb) (cb)(rcu)
524 #define OBD_FREE_RCU_CB(ptr, size, handle, free_cb) \
526 struct portals_handle *__h = (handle); \
528 __h->h_ptr = (ptr); \
529 __h->h_size = (size); \
530 __h->h_free_cb = (void (*)(void *, size_t))(free_cb); \
531 my_call_rcu(&__h->h_rcu, class_handle_free_cb); \
534 #define OBD_FREE_RCU(ptr, size, handle) OBD_FREE_RCU_CB(ptr, size, handle, NULL)
537 #define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
538 #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
539 #define OBD_FREE_RCU_CB(ptr, size, handle, cb) ((*(cb))(ptr, size))
540 #endif /* ifdef __KERNEL__ */
543 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
545 # define OBD_VFREE(ptr, size) \
547 OBD_FREE_PRE(ptr, size, "vfreed"); \
548 cfs_free_large(ptr); \
553 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
554 * HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
555 * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
556 #define OBD_SLAB_ALLOC(ptr, slab, type, size) \
558 LASSERT(!in_interrupt()); \
559 (ptr) = cfs_mem_cache_alloc(slab, (type)); \
560 if (unlikely((ptr) == NULL)) { \
561 CERROR("slab-alloc of '"#ptr"' (%d bytes) failed at %s:%d\n", \
562 (int)(size), __FILE__, __LINE__); \
563 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
564 atomic_read(&obd_memory), atomic_read(&libcfs_kmemory));\
566 memset(ptr, 0, size); \
567 OBD_ALLOC_POST(ptr, size, "slab-alloced"); \
571 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
573 #define OBD_SLAB_FREE(ptr, slab, size) \
575 OBD_FREE_PRE(ptr, size, "slab-freed"); \
576 cfs_mem_cache_free(slab, ptr); \
580 #define OBD_SLAB_ALLOC_PTR(ptr, slab) \
581 OBD_SLAB_ALLOC((ptr), (slab), CFS_ALLOC_STD, sizeof *(ptr))
582 #define OBD_SLAB_FREE_PTR(ptr, slab) \
583 OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
585 #define KEY_IS(str) (keylen >= strlen(str) && strcmp(key, str) == 0)
587 #if defined(__linux__)
588 #include <linux/obd_support.h>
589 #elif defined(__APPLE__)
590 #include <darwin/obd_support.h>
591 #elif defined(__WINNT__)
592 #include <winnt/obd_support.h>
594 #error Unsupported operating system.