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 #include <lprocfs_status.h>
30 #if defined(__linux__)
31 #include <linux/obd_support.h>
32 #elif defined(__APPLE__)
33 #include <darwin/obd_support.h>
34 #elif defined(__WINNT__)
35 #include <winnt/obd_support.h>
37 #error Unsupported operating system.
40 /* global variables */
41 extern struct lprocfs_stats *obd_memory;
44 OBD_MEMORY_PAGES_STAT = 1,
49 OBD_FAIL_LOC_NOSET = 0,
50 OBD_FAIL_LOC_ORSET = 1,
51 OBD_FAIL_LOC_RESET = 2
54 extern unsigned long obd_fail_loc;
55 extern unsigned int obd_fail_val;
56 extern unsigned int obd_debug_peer_on_timeout;
57 extern unsigned int obd_dump_on_timeout;
58 extern unsigned int obd_dump_on_eviction;
59 extern unsigned int obd_timeout; /* seconds */
60 #define PING_INTERVAL max(obd_timeout / 4, 1U)
61 #define RECONNECT_INTERVAL max(obd_timeout / 10, 10U)
62 extern unsigned int ldlm_timeout;
63 extern unsigned int obd_health_check_timeout;
64 extern unsigned int obd_sync_filter;
65 extern unsigned int obd_max_dirty_pages;
66 extern atomic_t obd_dirty_pages;
67 extern cfs_waitq_t obd_race_waitq;
68 extern int obd_race_state;
69 extern unsigned int obd_alloc_fail_rate;
71 int __obd_fail_check_set(__u32 id, __u32 value, int set);
73 /* Timeout definitions */
74 #define LDLM_TIMEOUT_DEFAULT 20
75 #define OBD_TIMEOUT_DEFAULT 100
76 #define HEALTH_CHECK_COEF 3 / 2
77 #define HEALTH_CHECK_TIMEOUT_DEFAULT (OBD_TIMEOUT_DEFAULT * HEALTH_CHECK_COEF)
78 #define HEALTH_CHECK_TIMEOUT (obd_timeout * HEALTH_CHECK_COEF)
80 #define OBD_FAIL_MDS 0x100
81 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
82 #define OBD_FAIL_MDS_GETATTR_NET 0x102
83 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
84 #define OBD_FAIL_MDS_READPAGE_NET 0x104
85 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
86 #define OBD_FAIL_MDS_SENDPAGE 0x106
87 #define OBD_FAIL_MDS_REINT_NET 0x107
88 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
89 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
90 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
91 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
92 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
93 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
94 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
95 #define OBD_FAIL_MDS_REINT_LINK 0x10f
96 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
97 #define OBD_FAIL_MDS_REINT_RENAME 0x111
98 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
99 #define OBD_FAIL_MDS_OPEN_NET 0x113
100 #define OBD_FAIL_MDS_OPEN_PACK 0x114
101 #define OBD_FAIL_MDS_CLOSE_NET 0x115
102 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
103 #define OBD_FAIL_MDS_CONNECT_NET 0x117
104 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
105 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
106 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
107 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
108 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
109 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
110 #define OBD_FAIL_MDS_STATFS_NET 0x11e
111 #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f
112 #define OBD_FAIL_MDS_PIN_NET 0x120
113 #define OBD_FAIL_MDS_UNPIN_NET 0x121
114 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122
115 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123
116 #define OBD_FAIL_MDS_SYNC_NET 0x124
117 #define OBD_FAIL_MDS_SYNC_PACK 0x125
118 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126
119 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127
120 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128
121 #define OBD_FAIL_MDS_PAUSE_OPEN 0x129
122 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP 0x12a
123 #define OBD_FAIL_MDS_OPEN_CREATE 0x12b
124 #define OBD_FAIL_MDS_OST_SETATTR 0x12c
125 #define OBD_FAIL_MDS_QUOTACHECK_NET 0x12d
126 #define OBD_FAIL_MDS_QUOTACTL_NET 0x12e
127 #define OBD_FAIL_MDS_CLIENT_ADD 0x12f
128 #define OBD_FAIL_MDS_GETXATTR_NET 0x130
129 #define OBD_FAIL_MDS_GETXATTR_PACK 0x131
130 #define OBD_FAIL_MDS_SETXATTR_NET 0x132
131 #define OBD_FAIL_MDS_SETXATTR 0x133
132 #define OBD_FAIL_MDS_SETXATTR_WRITE 0x134
133 #define OBD_FAIL_MDS_FS_SETUP 0x135
134 #define OBD_FAIL_MDS_RESEND 0x136
135 #define OBD_FAIL_MDS_IS_SUBDIR_NET 0x137
136 #define OBD_FAIL_MDS_IS_SUBDIR_PACK 0x138
137 #define OBD_FAIL_MDS_SET_INFO_NET 0x139
138 #define OBD_FAIL_MDS_WRITEPAGE_NET 0x13a
139 #define OBD_FAIL_MDS_WRITEPAGE_PACK 0x13b
140 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED 0x13c
141 #define OBD_FAIL_MDS_OSC_PRECREATE 0x13d
142 #define OBD_FAIL_MDS_LOV_SYNC_RACE 0x13e
143 #define OBD_FAIL_MDS_CLOSE_NET_REP 0x13f
145 #define OBD_FAIL_OST 0x200
146 #define OBD_FAIL_OST_CONNECT_NET 0x201
147 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
148 #define OBD_FAIL_OST_GET_INFO_NET 0x203
149 #define OBD_FAIL_OST_CREATE_NET 0x204
150 #define OBD_FAIL_OST_DESTROY_NET 0x205
151 #define OBD_FAIL_OST_GETATTR_NET 0x206
152 #define OBD_FAIL_OST_SETATTR_NET 0x207
153 #define OBD_FAIL_OST_OPEN_NET 0x208
154 #define OBD_FAIL_OST_CLOSE_NET 0x209
155 #define OBD_FAIL_OST_BRW_NET 0x20a
156 #define OBD_FAIL_OST_PUNCH_NET 0x20b
157 #define OBD_FAIL_OST_STATFS_NET 0x20c
158 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
159 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
160 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
161 #define OBD_FAIL_OST_SYNC_NET 0x210
162 #define OBD_FAIL_OST_ALL_REPLY_NET 0x211
163 #define OBD_FAIL_OST_ALL_REQUESTS_NET 0x212
164 #define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
165 #define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
166 #define OBD_FAIL_OST_ENOSPC 0x215
167 #define OBD_FAIL_OST_EROFS 0x216
168 #define OBD_FAIL_OST_ENOENT 0x217
169 #define OBD_FAIL_OST_QUOTACHECK_NET 0x218
170 #define OBD_FAIL_OST_QUOTACTL_NET 0x219
171 #define OBD_FAIL_OST_CHECKSUM_RECEIVE 0x21a
172 #define OBD_FAIL_OST_CHECKSUM_SEND 0x21b
173 #define OBD_FAIL_OST_BRW_SIZE 0x21c
174 #define OBD_FAIL_OST_DROP_REQ 0x21d
175 #define OBD_FAIL_OST_SETATTR_CREDITS 0x21e
176 #define OBD_FAIL_OST_HOLD_WRITE_RPC 0x21f
177 #define OBD_FAIL_OST_BRW_WRITE_BULK2 0x220
179 #define OBD_FAIL_LDLM 0x300
180 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
181 #define OBD_FAIL_LDLM_ENQUEUE 0x302
182 #define OBD_FAIL_LDLM_CONVERT 0x303
183 #define OBD_FAIL_LDLM_CANCEL 0x304
184 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
185 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
186 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307
187 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
188 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
189 #define OBD_FAIL_LDLM_CREATE_RESOURCE 0x30a
190 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED 0x30b
191 #define OBD_FAIL_LDLM_REPLY 0x30c
192 #define OBD_FAIL_LDLM_RECOV_CLIENTS 0x30d
193 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
194 #define OBD_FAIL_LDLM_GLIMPSE 0x30f
195 #define OBD_FAIL_LDLM_CANCEL_RACE 0x310
196 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE 0x311
198 #define OBD_FAIL_OSC 0x400
199 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
200 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
201 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
202 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
203 #define OBD_FAIL_OSC_MATCH 0x405
204 #define OBD_FAIL_OSC_BRW_PREP_REQ 0x406
205 #define OBD_FAIL_OSC_SHUTDOWN 0x407
206 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE 0x408
207 #define OBD_FAIL_OSC_CHECKSUM_SEND 0x409
208 #define OBD_FAIL_OSC_BRW_PREP_REQ2 0x40a
210 #define OBD_FAIL_PTLRPC 0x500
211 #define OBD_FAIL_PTLRPC_ACK 0x501
212 #define OBD_FAIL_PTLRPC_RQBD 0x502
213 #define OBD_FAIL_PTLRPC_BULK_GET_NET 0x503
214 #define OBD_FAIL_PTLRPC_BULK_PUT_NET 0x504
215 #define OBD_FAIL_PTLRPC_DROP_RPC 0x505
216 #define OBD_FAIL_PTLRPC_DELAY_SEND 0x506
217 #define OBD_FAIL_PTLRPC_DELAY_RECOV 0x507
219 #define OBD_FAIL_OBD_PING_NET 0x600
220 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
221 #define OBD_FAIL_OBD_LOGD_NET 0x602
222 #define OBD_FAIL_OBD_QC_CALLBACK_NET 0x603
223 #define OBD_FAIL_OBD_DQACQ 0x604
225 #define OBD_FAIL_TGT_REPLY_NET 0x700
226 #define OBD_FAIL_TGT_CONN_RACE 0x701
227 #define OBD_FAIL_TGT_FORCE_RECONNECT 0x702
228 #define OBD_FAIL_TGT_DELAY_CONNECT 0x703
229 #define OBD_FAIL_TGT_DELAY_RECONNECT 0x704
230 #define OBD_FAIL_TGT_DELAY_PRECREATE 0x705
232 #define OBD_FAIL_MDC_REVALIDATE_PAUSE 0x800
233 #define OBD_FAIL_MDC_ENQUEUE_PAUSE 0x801
235 #define OBD_FAIL_MGS 0x900
236 #define OBD_FAIL_MGS_ALL_REQUEST_NET 0x901
237 #define OBD_FAIL_MGS_ALL_REPLY_NET 0x902
238 #define OBD_FAIL_MGC_PROCESS_LOG 0x903
239 #define OBD_FAIL_MGS_SLOW_REQUEST_NET 0x904
240 #define OBD_FAIL_MGS_SLOW_TARGET_REG 0x905
242 #define OBD_FAIL_QUOTA_QD_COUNT_32BIT 0xa00
244 #define OBD_FAIL_LPROC_REMOVE 0xb00
246 #define OBD_FAIL_GENERAL_ALLOC 0xc00
248 #define OBD_FAIL_SEQ 0x1000
249 #define OBD_FAIL_SEQ_QUERY_NET 0x1001
251 #define OBD_FAIL_FLD 0x1100
252 #define OBD_FAIL_FLD_QUERY_NET 0x1101
254 #define OBD_FAIL_SEC_CTX 0x1200
255 #define OBD_FAIL_SEC_CTX_INIT_NET 0x1201
256 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET 0x1202
257 #define OBD_FAIL_SEC_CTX_FINI_NET 0x1203
259 /* Failure injection control */
260 #define OBD_FAIL_MASK_SYS 0x0000FF00
261 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
263 #define OBD_FAILED_BIT 30
264 /* OBD_FAILED is 0x40000000 */
265 #define OBD_FAILED (1 << OBD_FAILED_BIT)
267 #define OBD_FAIL_ONCE_BIT 31
268 /* OBD_FAIL_ONCE is 0x80000000 */
269 #define OBD_FAIL_ONCE (1 << OBD_FAIL_ONCE_BIT)
271 /* The following flags aren't made to be combined */
272 #define OBD_FAIL_SKIP 0x20000000 /* skip N times then fail */
273 #define OBD_FAIL_SOME 0x10000000 /* only fail N times */
274 #define OBD_FAIL_RAND 0x08000000 /* fail 1/N of the times */
275 #define OBD_FAIL_USR1 0x04000000 /* user flag */
277 #define OBD_FAIL_PRECHECK(id) (obd_fail_loc && \
278 (obd_fail_loc & OBD_FAIL_MASK_LOC) == \
279 ((id) & OBD_FAIL_MASK_LOC))
281 static inline int obd_fail_check_set(__u32 id, __u32 value, int set)
284 if (unlikely(OBD_FAIL_PRECHECK(id) &&
285 (ret = __obd_fail_check_set(id, value, set)))) {
286 CERROR("*** obd_fail_loc=%x ***\n", id);
291 /* If id hit obd_fail_loc, return 1, otherwise return 0 */
292 #define OBD_FAIL_CHECK(id) \
293 obd_fail_check_set(id, 0, OBD_FAIL_LOC_NOSET)
295 /* If id hit obd_fail_loc, obd_fail_loc |= value and return 1,
296 * otherwise return 0 */
297 #define OBD_FAIL_CHECK_ORSET(id, value) \
298 obd_fail_check_set(id, value, OBD_FAIL_LOC_ORSET)
300 /* If id hit obd_fail_loc, obd_fail_loc = value and return 1,
301 * otherwise return 0 */
302 #define OBD_FAIL_CHECK_RESET(id, value) \
303 obd_fail_check_set(id, value, OBD_FAIL_LOC_RESET)
306 static inline int obd_fail_timeout_set(__u32 id, __u32 value, int secs, int set)
309 if (unlikely(OBD_FAIL_PRECHECK(id) &&
310 (ret = __obd_fail_check_set(id, value, set)))) {
311 CERROR("obd_fail_timeout id %x sleeping for %d secs\n",
313 set_current_state(TASK_UNINTERRUPTIBLE);
314 cfs_schedule_timeout(CFS_TASK_UNINT, cfs_time_seconds(secs));
315 set_current_state(TASK_RUNNING);
316 CERROR("obd_fail_timeout id %x awake\n", id);
321 /* If id hit obd_fail_loc, sleep secs */
322 #define OBD_FAIL_TIMEOUT(id, secs) \
323 obd_fail_timeout_set(id, 0, secs, OBD_FAIL_LOC_NOSET)
325 /* If id hit obd_fail_loc, obd_fail_loc |= value and sleep secs */
326 #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) \
327 obd_fail_timeout_set(id, value, secs, OBD_FAIL_LOC_ORSET)
330 static inline void obd_fail_write(int id, struct super_block *sb)
332 /* We set FAIL_ONCE because we never "un-fail" a device */
333 if (OBD_FAIL_CHECK_ORSET(id & ~OBD_FAIL_ONCE, OBD_FAIL_ONCE)) {
335 BDEVNAME_DECLARE_STORAGE(tmp);
336 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
337 id, ll_bdevname(sb, tmp));
339 /* TODO-CMD: fix getting jdev */
340 __lvfs_set_rdonly(lvfs_sbdev(sb), (lvfs_sbdev_type)0);
343 #define OBD_FAIL_WRITE(id, sb) obd_fail_write(id, sb)
345 /* The idea here is to synchronise two threads to force a race. The
346 * first thread that calls this with a matching fail_loc is put to
347 * sleep. The next thread that calls with the same fail_loc wakes up
348 * the first and continues. */
349 static inline void obd_race(__u32 id)
351 if (OBD_FAIL_PRECHECK(id)) {
352 if (unlikely(__obd_fail_check_set(id, 0, OBD_FAIL_LOC_NOSET))) {
354 CERROR("obd_race id %x sleeping\n", id);
355 OBD_SLEEP_ON(obd_race_waitq, obd_race_state != 0);
356 CERROR("obd_fail_race id %x awake\n", id);
358 CERROR("obd_fail_race id %x waking\n", id);
360 wake_up(&obd_race_waitq);
364 #define OBD_RACE(id) obd_race(id)
366 /* sigh. an expedient fix until OBD_RACE is fixed up */
367 #define OBD_RACE(foo) do {} while(0)
370 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
372 extern atomic_t libcfs_kmemory;
375 #define obd_memory_add(size) \
376 lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
377 #define obd_memory_sub(size) \
378 lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
379 #define obd_memory_sum() \
380 lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT, \
381 LPROCFS_FIELDS_FLAGS_SUM)
382 #define obd_pages_add(order) \
383 lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT, \
384 (long)(1 << (order)))
385 #define obd_pages_sub(order) \
386 lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT, \
387 (long)(1 << (order)))
388 #define obd_pages_sum() \
389 lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT, \
390 LPROCFS_FIELDS_FLAGS_SUM)
392 extern void obd_update_maxusage(void);
393 extern __u64 obd_memory_max(void);
394 extern __u64 obd_pages_max(void);
398 extern __u64 obd_alloc;
399 extern __u64 obd_pages;
401 extern __u64 obd_max_alloc;
402 extern __u64 obd_max_pages;
404 static inline void obd_memory_add(long size)
407 if (obd_alloc > obd_max_alloc)
408 obd_max_alloc = obd_alloc;
411 static inline void obd_memory_sub(long size)
416 static inline void obd_pages_add(int order)
418 obd_pages += 1<< order;
419 if (obd_pages > obd_max_pages)
420 obd_max_pages = obd_pages;
423 static inline void obd_pages_sub(int order)
425 obd_pages -= 1<< order;
428 #define obd_memory_sum() (obd_alloc)
429 #define obd_pages_sum() (obd_pages)
431 #define obd_memory_max() (obd_max_alloc)
432 #define obd_pages_max() (obd_max_pages)
436 #if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
438 #define OBD_MT_WRONG_SIZE (1 << 0)
439 #define OBD_MT_ALREADY_FREED (1 << 1)
440 #define OBD_MT_LOC_LEN 128
442 struct obd_mem_track {
443 struct hlist_node mt_hash;
444 char mt_loc[OBD_MT_LOC_LEN];
450 void lvfs_memdbg_show(void);
451 void lvfs_memdbg_insert(struct obd_mem_track *mt);
452 void lvfs_memdbg_remove(struct obd_mem_track *mt);
453 struct obd_mem_track *lvfs_memdbg_find(void *ptr);
455 int lvfs_memdbg_check_insert(struct obd_mem_track *mt);
456 struct obd_mem_track *lvfs_memdbg_check_remove(void *ptr);
458 static inline struct obd_mem_track *
459 __new_mem_track(void *ptr, int size,
460 char *file, int line)
462 struct obd_mem_track *mt;
464 mt = kmalloc(sizeof(*mt), GFP_KERNEL);
468 snprintf(mt->mt_loc, sizeof(mt->mt_loc) - 1,
469 "%s:%d", file, line);
478 __free_mem_track(struct obd_mem_track *mt)
484 __get_mem_track(void *ptr, int size,
485 char *file, int line)
487 struct obd_mem_track *mt;
489 mt = __new_mem_track(ptr, size, file, line);
491 CWARN("Can't allocate new memory track\n");
495 if (!lvfs_memdbg_check_insert(mt))
496 __free_mem_track(mt);
502 __put_mem_track(void *ptr, int size,
503 char *file, int line)
505 struct obd_mem_track *mt;
507 if (unlikely(!(mt = lvfs_memdbg_check_remove(ptr)))) {
508 CWARN("Ptr 0x%p is not allocated. Attempt to free "
509 "not allocated memory at %s:%d\n", ptr,
514 if (unlikely(mt->mt_size != size)) {
515 if (!(mt->mt_flags & OBD_MT_ALREADY_FREED)) {
516 mt->mt_flags |= (OBD_MT_WRONG_SIZE |
517 OBD_MT_ALREADY_FREED);
519 CWARN("Freeing memory chunk (at 0x%p) of "
520 "different size than allocated "
521 "(%d != %d) at %s:%d, allocated at %s\n",
522 ptr, mt->mt_size, size, file, line,
526 __free_mem_track(mt);
532 #define get_mem_track(ptr, size, file, line) \
533 __get_mem_track((ptr), (size), (file), (line))
535 #define put_mem_track(ptr, size, file, line) \
536 __put_mem_track((ptr), (size), (file), (line))
538 #else /* !CONFIG_DEBUG_MEMORY */
540 #define get_mem_track(ptr, size, file, line) \
543 #define put_mem_track(ptr, size, file, line) \
545 #endif /* !CONFIG_DEBUG_MEMORY */
547 #define OBD_DEBUG_MEMUSAGE (1)
549 #if OBD_DEBUG_MEMUSAGE
550 #define OBD_ALLOC_POST(ptr, size, name) \
551 obd_memory_add(size); \
552 get_mem_track((ptr), (size), __FILE__, __LINE__); \
553 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \
556 #define OBD_FREE_PRE(ptr, size, name) \
558 put_mem_track((ptr), (size), __FILE__, __LINE__); \
559 obd_memory_sub(size); \
560 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \
562 POISON(ptr, 0x5a, size)
564 #else /* !OBD_DEBUG_MEMUSAGE */
566 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
567 #define OBD_FREE_PRE(ptr, size, name) ((void)0)
569 #endif /* !OBD_DEBUG_MEMUSAGE */
571 #ifdef RANDOM_FAIL_ALLOC
572 #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
574 #define HAS_FAIL_ALLOC_FLAG 0
577 #define OBD_ALLOC_FAIL_BITS 24
578 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
579 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
581 #if defined(LUSTRE_UTILS) /* this version is for utils only */
582 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
584 (ptr) = cfs_alloc(size, (gfp_mask)); \
585 if (unlikely((ptr) == NULL)) { \
586 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
587 (int)(size), __FILE__, __LINE__); \
589 memset(ptr, 0, size); \
590 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n", \
594 #else /* this version is for the kernel and liblustre */
595 #define OBD_FREE_RTN0(ptr) \
601 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
603 (ptr) = cfs_alloc(size, (gfp_mask)); \
604 if (likely((ptr) != NULL && \
605 (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
606 !obd_alloc_fail(ptr, #ptr, "km", size, \
607 __FILE__, __LINE__) || \
608 OBD_FREE_RTN0(ptr)))){ \
609 memset(ptr, 0, size); \
610 OBD_ALLOC_POST(ptr, size, "kmalloced"); \
615 #ifndef OBD_ALLOC_MASK
616 # define OBD_ALLOC_MASK CFS_ALLOC_IO
619 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_ALLOC_MASK)
620 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, CFS_ALLOC_STD)
621 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
622 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
625 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
627 # define OBD_VMALLOC(ptr, size) \
629 (ptr) = cfs_alloc_large(size); \
630 if (unlikely((ptr) == NULL)) { \
631 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n", \
633 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
634 obd_memory_sum(), atomic_read(&libcfs_kmemory)); \
636 memset(ptr, 0, size); \
637 OBD_ALLOC_POST(ptr, size, "vmalloced"); \
642 #ifdef CONFIG_DEBUG_SLAB
643 #define POISON(ptr, c, s) do {} while (0)
644 #define POISON_PTR(ptr) ((void)0)
646 #define POISON(ptr, c, s) memset(ptr, c, s)
647 #define POISON_PTR(ptr) (ptr) = (void *)0xdeadbeef
651 #define POISON_PAGE(page, val) do { memset(kmap(page), val, CFS_PAGE_SIZE); \
652 kunmap(page); } while (0)
654 #define POISON_PAGE(page, val) do { } while (0)
658 #define OBD_FREE(ptr, size) \
660 OBD_FREE_PRE(ptr, size, "kfreed"); \
667 # ifdef HAVE_CALL_RCU_PARAM
668 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb, rcu)
670 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb)
673 # define my_call_rcu(rcu, cb) (cb)(rcu)
676 #define OBD_FREE_RCU_CB(ptr, size, handle, free_cb) \
678 struct portals_handle *__h = (handle); \
680 __h->h_ptr = (ptr); \
681 __h->h_size = (size); \
682 __h->h_free_cb = (void (*)(void *, size_t))(free_cb); \
683 my_call_rcu(&__h->h_rcu, class_handle_free_cb); \
686 #define OBD_FREE_RCU(ptr, size, handle) OBD_FREE_RCU_CB(ptr, size, handle, NULL)
689 #define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
690 #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
691 #define OBD_FREE_RCU_CB(ptr, size, handle, cb) ((*(cb))(ptr, size))
692 #endif /* ifdef __KERNEL__ */
695 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
697 # define OBD_VFREE(ptr, size) \
699 OBD_FREE_PRE(ptr, size, "vfreed"); \
700 cfs_free_large(ptr); \
705 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
706 * HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
707 * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
708 #define OBD_SLAB_FREE_RTN0(ptr, slab) \
710 cfs_mem_cache_free((slab), (ptr)); \
714 #define OBD_SLAB_ALLOC(ptr, slab, type, size) \
716 LASSERT(!in_interrupt()); \
717 (ptr) = cfs_mem_cache_alloc(slab, (type)); \
718 if (likely((ptr) != NULL && \
719 (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
720 !obd_alloc_fail(ptr, #ptr, "slab-", size, \
721 __FILE__, __LINE__) || \
722 OBD_SLAB_FREE_RTN0(ptr, slab)))) { \
723 memset(ptr, 0, size); \
724 OBD_ALLOC_POST(ptr, size, "slab-alloced"); \
728 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
730 #define OBD_SLAB_FREE(ptr, slab, size) \
732 OBD_FREE_PRE(ptr, size, "slab-freed"); \
733 cfs_mem_cache_free(slab, ptr); \
737 #define OBD_SLAB_ALLOC_PTR(ptr, slab) \
738 OBD_SLAB_ALLOC((ptr), (slab), CFS_ALLOC_STD, sizeof *(ptr))
739 #define OBD_SLAB_FREE_PTR(ptr, slab) \
740 OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
742 #define KEY_IS(str) (keylen >= strlen(str) && strncmp(key, str, keylen) == 0)
744 /* Wrapper for contiguous page frame allocation */
745 #define OBD_PAGES_ALLOC(ptr, order, gfp_mask) \
747 (ptr) = cfs_alloc_pages(gfp_mask, order); \
748 if (unlikely((ptr) == NULL)) { \
749 CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
750 "failed\n", (int)(1 << (order)), \
751 (__u64)((1 << (order)) << CFS_PAGE_SHIFT)); \
752 CERROR(LPU64" total bytes and "LPU64" total pages " \
753 "("LPU64" bytes) allocated by Lustre, " \
754 "%d total bytes by LNET\n", \
756 obd_pages_sum() << CFS_PAGE_SHIFT, \
758 atomic_read(&libcfs_kmemory)); \
760 obd_pages_add(order); \
761 CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / " \
762 LPU64" bytes at %p.\n", \
763 (int)(1 << (order)), \
764 (__u64)((1 << (order)) << CFS_PAGE_SHIFT), ptr); \
768 #define OBD_PAGE_ALLOC(ptr, gfp_mask) \
769 OBD_PAGES_ALLOC(ptr, 0, gfp_mask)
771 #define OBD_PAGES_FREE(ptr, order) \
774 obd_pages_sub(order); \
775 CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
777 (int)(1 << (order)), (__u64)((1 << (order)) << CFS_PAGE_SHIFT),\
779 __cfs_free_pages(ptr, order); \
780 (ptr) = (void *)0xdeadbeef; \
783 #define OBD_PAGE_FREE(ptr) OBD_PAGES_FREE(ptr, 0)