1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
40 #include <libcfs/kp30.h>
42 #include <lprocfs_status.h>
43 #include <lustre/lustre_idl.h>
45 /* global variables */
46 extern struct lprocfs_stats *obd_memory;
49 OBD_MEMORY_PAGES_STAT = 1,
53 extern unsigned int obd_fail_loc;
54 extern unsigned int obd_fail_val;
55 extern unsigned int obd_debug_peer_on_timeout;
56 extern unsigned int obd_dump_on_timeout;
57 extern unsigned int obd_dump_on_eviction;
58 /* obd_timeout should only be used for recovery, not for
59 networking / disk / timings affected by load (use Adaptive Timeouts) */
60 extern unsigned int obd_timeout; /* seconds */
61 extern unsigned int ldlm_timeout; /* seconds */
62 extern unsigned int at_min;
63 extern unsigned int at_max;
64 extern unsigned int at_history;
65 extern int at_early_margin;
67 extern unsigned int obd_sync_filter;
68 extern unsigned int obd_max_dirty_pages;
69 extern atomic_t obd_dirty_pages;
70 extern cfs_waitq_t obd_race_waitq;
71 extern int obd_race_state;
72 extern unsigned int obd_alloc_fail_rate;
74 /* Timeout definitions */
75 #define OBD_TIMEOUT_DEFAULT 100
76 #define LDLM_TIMEOUT_DEFAULT 20
77 #define MDS_LDLM_TIMEOUT_DEFAULT 6
78 #ifdef HAVE_DELAYED_RECOVERY
79 #define STALE_EXPORT_MAXTIME_DEFAULT (24*60*60) /**< one day, in seconds */
81 #define STALE_EXPORT_MAXTIME_DEFAULT (0) /**< zero if no delayed recovery */
84 #define OBD_RECOVERY_MAX_TIME (obd_timeout * 18) /* b13079 */
86 /* Time to wait for all clients to reconnect during recovery */
87 /* Should be very conservative; must catch the first reconnect after reboot */
88 #define OBD_RECOVERY_FACTOR (3) /* times obd_timeout */
89 /* Change recovery-small 26b time if you change this */
90 #define PING_INTERVAL max(obd_timeout / 4, 1U)
91 /* a bit more than maximal journal commit time in seconds */
92 #define PING_INTERVAL_SHORT 7
93 /* maximum server ping service time excluding network latency */
94 #define PING_SVC_TIMEOUT 15
95 /* Client may skip 1 ping; we must wait at least 2.5. But for multiple
96 * failover targets the client only pings one server at a time, and pings
97 * can be lost on a loaded network. Since eviction has serious consequences,
98 * and there's no urgent need to evict a client just because it's idle, we
99 * should be very conservative here. */
100 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
101 #define DISK_TIMEOUT 50 /* Beyond this we warn about disk speed */
102 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
103 /* Max connect interval for nonresponsive servers; ~50s to avoid building up
104 connect requests in the LND queues, but within obd_timeout so we don't
105 miss the recovery window */
106 #define CONNECTION_SWITCH_MAX min(25U, max(CONNECTION_SWITCH_MIN,obd_timeout))
107 #define CONNECTION_SWITCH_INC 1 /* Connection timeout backoff */
109 /* In general this should be low to have quick detection of a system
110 running on a backup server. (If it's too low, import_select_connection
111 will increase the timeout anyhow.) */
112 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
114 /* ...but for very large systems (e.g. CRAY) we need to keep the initial
115 connect t.o. high (bz 10803), because they will nearly ALWAYS be doing the
116 connects for the first time (clients "reboot" after every process, so no
117 chance to generate adaptive timeout data. */
118 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/2)
120 #define LONG_UNLINK 300 /* Unlink should happen before now */
123 * Time interval of shrink, if the client is "idle" more than this interval,
124 * then the ll_grant thread will return the requested grant space to filter
126 #define GRANT_SHRINK_INTERVAL 1200/*20 minutes*/
128 #define OBD_FAIL_MDS 0x100
129 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
130 #define OBD_FAIL_MDS_GETATTR_NET 0x102
131 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
132 #define OBD_FAIL_MDS_READPAGE_NET 0x104
133 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
134 #define OBD_FAIL_MDS_SENDPAGE 0x106
135 #define OBD_FAIL_MDS_REINT_NET 0x107
136 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
137 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
138 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
139 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
140 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
141 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
142 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
143 #define OBD_FAIL_MDS_REINT_LINK 0x10f
144 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
145 #define OBD_FAIL_MDS_REINT_RENAME 0x111
146 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
147 #define OBD_FAIL_MDS_OPEN_NET 0x113
148 #define OBD_FAIL_MDS_OPEN_PACK 0x114
149 #define OBD_FAIL_MDS_CLOSE_NET 0x115
150 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
151 #define OBD_FAIL_MDS_CONNECT_NET 0x117
152 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
153 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
154 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
155 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
156 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
157 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
158 #define OBD_FAIL_MDS_STATFS_NET 0x11e
159 #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f
160 #define OBD_FAIL_MDS_PIN_NET 0x120
161 #define OBD_FAIL_MDS_UNPIN_NET 0x121
162 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122
163 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123
164 #define OBD_FAIL_MDS_SYNC_NET 0x124
165 #define OBD_FAIL_MDS_SYNC_PACK 0x125
166 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126
167 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127
168 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128
169 #define OBD_FAIL_MDS_PAUSE_OPEN 0x129
170 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP 0x12a
171 #define OBD_FAIL_MDS_OPEN_CREATE 0x12b
172 #define OBD_FAIL_MDS_OST_SETATTR 0x12c
173 #define OBD_FAIL_MDS_QUOTACHECK_NET 0x12d
174 #define OBD_FAIL_MDS_QUOTACTL_NET 0x12e
175 #define OBD_FAIL_MDS_CLIENT_ADD 0x12f
176 #define OBD_FAIL_MDS_GETXATTR_NET 0x130
177 #define OBD_FAIL_MDS_GETXATTR_PACK 0x131
178 #define OBD_FAIL_MDS_SETXATTR_NET 0x132
179 #define OBD_FAIL_MDS_SETXATTR 0x133
180 #define OBD_FAIL_MDS_SETXATTR_WRITE 0x134
181 #define OBD_FAIL_MDS_FS_SETUP 0x135
182 #define OBD_FAIL_MDS_RESEND 0x136
183 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED 0x137
184 #define OBD_FAIL_MDS_LOV_SYNC_RACE 0x138
185 #define OBD_FAIL_MDS_OSC_PRECREATE 0x139
186 #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT 0x13a
187 #define OBD_FAIL_MDS_CLOSE_NET_REP 0x13b
188 #define OBD_FAIL_MDS_BLOCK_QUOTA_REQ 0x13c
189 #define OBD_FAIL_MDS_DROP_QUOTA_REQ 0x13d
190 #define OBD_FAIL_MDS_REMOVE_COMMON_EA 0x13e
191 #define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING 0x13f
192 #define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD 0x140
193 #define OBD_FAIL_MDS_LOV_PREP_CREATE 0x141
194 #define OBD_FAIL_MDS_SPLIT_OPEN 0x142
196 #define OBD_FAIL_OST 0x200
197 #define OBD_FAIL_OST_CONNECT_NET 0x201
198 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
199 #define OBD_FAIL_OST_GET_INFO_NET 0x203
200 #define OBD_FAIL_OST_CREATE_NET 0x204
201 #define OBD_FAIL_OST_DESTROY_NET 0x205
202 #define OBD_FAIL_OST_GETATTR_NET 0x206
203 #define OBD_FAIL_OST_SETATTR_NET 0x207
204 #define OBD_FAIL_OST_OPEN_NET 0x208
205 #define OBD_FAIL_OST_CLOSE_NET 0x209
206 #define OBD_FAIL_OST_BRW_NET 0x20a
207 #define OBD_FAIL_OST_PUNCH_NET 0x20b
208 #define OBD_FAIL_OST_STATFS_NET 0x20c
209 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
210 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
211 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
212 #define OBD_FAIL_OST_SYNC_NET 0x210
213 #define OBD_FAIL_OST_ALL_REPLY_NET 0x211
214 #define OBD_FAIL_OST_ALL_REQUEST_NET 0x212
215 #define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
216 #define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
217 #define OBD_FAIL_OST_ENOSPC 0x215
218 #define OBD_FAIL_OST_EROFS 0x216
219 #define OBD_FAIL_OST_ENOENT 0x217
220 #define OBD_FAIL_OST_QUOTACHECK_NET 0x218
221 #define OBD_FAIL_OST_QUOTACTL_NET 0x219
222 #define OBD_FAIL_OST_CHECKSUM_RECEIVE 0x21a
223 #define OBD_FAIL_OST_CHECKSUM_SEND 0x21b
224 #define OBD_FAIL_OST_BRW_SIZE 0x21c
225 #define OBD_FAIL_OST_DROP_REQ 0x21d
226 #define OBD_FAIL_OST_SETATTR_CREDITS 0x21e
227 #define OBD_FAIL_OST_HOLD_WRITE_RPC 0x21f
228 #define OBD_FAIL_OST_BRW_WRITE_BULK2 0x220
229 #define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
230 #define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
231 #define OBD_FAIL_OST_PAUSE_CREATE 0x223
232 #define OBD_FAIL_OST_BRW_PAUSE_PACK 0x224
233 #define OBD_FAIL_OST_CONNECT_NET2 0x225
234 #define OBD_FAIL_OST_NOMEM 0x226
236 #define OBD_FAIL_LDLM 0x300
237 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
238 #define OBD_FAIL_LDLM_ENQUEUE 0x302
239 #define OBD_FAIL_LDLM_CONVERT 0x303
240 #define OBD_FAIL_LDLM_CANCEL 0x304
241 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
242 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
243 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307
244 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
245 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
246 #define OBD_FAIL_LDLM_CREATE_RESOURCE 0x30a
247 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED 0x30b
248 #define OBD_FAIL_LDLM_REPLY 0x30c
249 #define OBD_FAIL_LDLM_RECOV_CLIENTS 0x30d
250 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
251 #define OBD_FAIL_LDLM_GLIMPSE 0x30f
252 #define OBD_FAIL_LDLM_CANCEL_RACE 0x310
253 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE 0x311
254 #define OBD_FAIL_LDLM_PAUSE_CANCEL 0x312
255 #define OBD_FAIL_LDLM_CLOSE_THREAD 0x313
256 #define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE 0x314
257 #define OBD_FAIL_LDLM_CP_CB_WAIT 0x315
258 #define OBD_FAIL_LDLM_OST_FAIL_RACE 0x316
259 #define OBD_FAIL_LDLM_INTR_CP_AST 0x317
260 #define OBD_FAIL_LDLM_CP_BL_RACE 0x318
261 #define OBD_FAIL_LDLM_ENQUEUE_LOCAL 0x319
264 #define OBD_FAIL_LDLM_SET_CONTENTION 0x385
266 #define OBD_FAIL_OSC 0x400
267 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
268 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
269 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
270 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
271 #define OBD_FAIL_OSC_MATCH 0x405
272 #define OBD_FAIL_OSC_BRW_PREP_REQ 0x406
273 #define OBD_FAIL_OSC_SHUTDOWN 0x407
274 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE 0x408
275 #define OBD_FAIL_OSC_CHECKSUM_SEND 0x409
276 #define OBD_FAIL_OSC_BRW_PREP_REQ2 0x40a
277 #define OBD_FAIL_OSC_CONNECT_CKSUM 0x40b
278 #define OBD_FAIL_OSC_CKSUM_ADLER_ONLY 0x40c
279 #define OBD_FAIL_OSC_DIO_PAUSE 0x40d
280 #define OBD_FAIL_OSC_OBJECT_CONTENTION 0x40e
282 #define OBD_FAIL_PTLRPC 0x500
283 #define OBD_FAIL_PTLRPC_ACK 0x501
284 #define OBD_FAIL_PTLRPC_RQBD 0x502
285 #define OBD_FAIL_PTLRPC_BULK_GET_NET 0x503
286 #define OBD_FAIL_PTLRPC_BULK_PUT_NET 0x504
287 #define OBD_FAIL_PTLRPC_DROP_RPC 0x505
288 #define OBD_FAIL_PTLRPC_DELAY_SEND 0x506
289 #define OBD_FAIL_PTLRPC_DELAY_RECOV 0x507
290 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB 0x508
291 #define OBD_FAIL_PTLRPC_PAUSE_REQ 0x50a
292 #define OBD_FAIL_PTLRPC_PAUSE_REP 0x50c
293 #define OBD_FAIL_PTLRPC_IMP_DEACTIVE 0x50d
295 #define OBD_FAIL_PTLRPC_DUMP_LOG 0x50e
296 #define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
297 #define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
298 #define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT 0x511
299 #define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT 0x512
301 #define OBD_FAIL_OBD_PING_NET 0x600
302 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
303 #define OBD_FAIL_OBD_LOGD_NET 0x602
304 #define OBD_FAIL_OBD_QC_CALLBACK_NET 0x603
305 #define OBD_FAIL_OBD_DQACQ 0x604
306 #define OBD_FAIL_OBD_LLOG_SETUP 0x605
307 #define OBD_FAIL_OBD_LOG_CANCEL_REP 0x606
309 #define OBD_FAIL_TGT_REPLY_NET 0x700
310 #define OBD_FAIL_TGT_CONN_RACE 0x701
311 #define OBD_FAIL_TGT_FORCE_RECONNECT 0x702
312 #define OBD_FAIL_TGT_DELAY_CONNECT 0x703
313 #define OBD_FAIL_TGT_DELAY_RECONNECT 0x704
314 #define OBD_FAIL_TGT_DELAY_PRECREATE 0x705
315 #define OBD_FAIL_TGT_TOOMANY_THREADS 0x706
316 #define OBD_FAIL_TGT_REPLAY_DROP 0x707
317 #define OBD_FAIL_TGT_FAKE_EXP 0x708
318 #define OBD_FAIL_TGT_REPLAY_DELAY 0x709
319 #define OBD_FAIL_TGT_LAST_REPLAY 0x710
321 #define OBD_FAIL_MDC_REVALIDATE_PAUSE 0x800
322 #define OBD_FAIL_MDC_ENQUEUE_PAUSE 0x801
323 #define OBD_FAIL_MDC_OLD_EXT_FLAGS 0x802
324 #define OBD_FAIL_MDC_GETATTR_ENQUEUE 0x803
326 #define OBD_FAIL_MGS 0x900
327 #define OBD_FAIL_MGS_ALL_REQUEST_NET 0x901
328 #define OBD_FAIL_MGS_ALL_REPLY_NET 0x902
329 #define OBD_FAIL_MGC_PAUSE_PROCESS_LOG 0x903
330 #define OBD_FAIL_MGS_PAUSE_REQ 0x904
331 #define OBD_FAIL_MGS_PAUSE_TARGET_REG 0x905
333 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(1, 9, 0, 0)
334 #define OBD_FAIL_QUOTA_WITHOUT_CHANGE_QS 0xA01
336 #warning "remove quota code above for format obsolete in new release"
339 #define OBD_FAIL_QUOTA_RET_QDATA 0xA02
340 #define OBD_FAIL_QUOTA_DELAY_REL 0xA03
342 #define OBD_FAIL_LPROC_REMOVE 0xB00
344 #define OBD_FAIL_GENERAL_ALLOC 0xC00
346 /* Failure injection control */
347 #define OBD_FAIL_MASK_SYS 0x0000FF00
348 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
349 #define OBD_FAIL_ONCE 0x80000000
350 #define OBD_FAILED 0x40000000
351 /* The following flags aren't made to be combined */
352 #define OBD_FAIL_SKIP 0x20000000 /* skip N then fail */
353 #define OBD_FAIL_SOME 0x10000000 /* fail N times */
354 #define OBD_FAIL_RAND 0x08000000 /* fail 1/N of the time */
355 #define OBD_FAIL_USR1 0x04000000 /* user flag */
357 int obd_fail_check(__u32 id);
358 #define OBD_FAIL_CHECK(id) \
361 if (unlikely(obd_fail_loc && (_ret_ = obd_fail_check(id)))) { \
362 CERROR("*** obd_fail_loc=%x ***\n", id); \
367 #define OBD_FAIL_CHECK_QUIET(id) \
368 (unlikely(obd_fail_loc) ? obd_fail_check(id) : 0)
370 /* deprecated - just use OBD_FAIL_CHECK */
371 #define OBD_FAIL_CHECK_ONCE OBD_FAIL_CHECK
373 #define OBD_FAIL_RETURN(id, ret) \
375 if (unlikely(obd_fail_loc && obd_fail_check(id))) { \
376 CERROR("*** obd_fail_return=%x rc=%d ***\n", id, ret); \
381 #define OBD_FAIL_TIMEOUT(id, secs) \
383 if (unlikely(obd_fail_loc && (_ret_ = obd_fail_check(id)))) { \
384 CERROR("obd_fail_timeout id %x sleeping for %d secs\n", \
386 set_current_state(TASK_UNINTERRUPTIBLE); \
387 cfs_schedule_timeout(CFS_TASK_UNINT, \
388 cfs_time_seconds(secs)); \
389 set_current_state(TASK_RUNNING); \
390 CERROR("obd_fail_timeout id %x awake\n", (id)); \
395 #define OBD_FAIL_TIMEOUT_MS(id, ms) \
397 if (unlikely(obd_fail_loc && (_ret_ = obd_fail_check(id)))) { \
398 CERROR("obd_fail_timeout id %x sleeping for %d ms\n", \
400 set_current_state(TASK_UNINTERRUPTIBLE); \
401 cfs_schedule_timeout(CFS_TASK_UNINT, \
402 cfs_time_seconds(ms)/1000); \
403 set_current_state(TASK_RUNNING); \
404 CERROR("obd_fail_timeout id %x awake\n", (id)); \
410 /* The idea here is to synchronise two threads to force a race. The
411 * first thread that calls this with a matching fail_loc is put to
412 * sleep. The next thread that calls with the same fail_loc wakes up
413 * the first and continues. */
414 #define OBD_RACE(id) \
416 if (unlikely(obd_fail_loc && obd_fail_check(id))) { \
417 obd_race_state = 0; \
418 CERROR("obd_race id %x sleeping\n", (id)); \
419 OBD_SLEEP_ON(obd_race_waitq, obd_race_state != 0); \
420 CERROR("obd_fail_race id %x awake\n", (id)); \
421 } else if ((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
422 ((id) & OBD_FAIL_MASK_LOC)) { \
423 CERROR("obd_fail_race id %x waking\n", (id)); \
424 obd_race_state = 1; \
425 wake_up(&obd_race_waitq); \
429 /* sigh. an expedient fix until OBD_RACE is fixed up */
430 #define OBD_RACE(foo) do {} while(0)
433 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
435 extern atomic_t libcfs_kmemory;
437 #ifdef RANDOM_FAIL_ALLOC
438 #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK_QUIET(OBD_FAIL_GENERAL_ALLOC)
440 #define HAS_FAIL_ALLOC_FLAG 0
443 #define OBD_ALLOC_FAIL_BITS 24
444 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
445 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
448 #define obd_memory_add(size) \
449 lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
450 #define obd_memory_sub(size) \
451 lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
452 #define obd_memory_sum() \
453 lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT, \
454 LPROCFS_FIELDS_FLAGS_SUM)
455 #define obd_pages_add(order) \
456 lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT, \
457 (long)(1 << (order)))
458 #define obd_pages_sub(order) \
459 lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT, \
460 (long)(1 << (order)))
461 #define obd_pages_sum() \
462 lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT, \
463 LPROCFS_FIELDS_FLAGS_SUM)
465 extern void obd_update_maxusage(void);
466 extern __u64 obd_memory_max(void);
467 extern __u64 obd_pages_max(void);
471 extern __u64 obd_alloc;
472 extern __u64 obd_pages;
474 extern __u64 obd_max_alloc;
475 extern __u64 obd_max_pages;
477 static inline void obd_memory_add(long size)
480 if (obd_alloc > obd_max_alloc)
481 obd_max_alloc = obd_alloc;
484 static inline void obd_memory_sub(long size)
489 static inline void obd_pages_add(int order)
491 obd_pages += 1<< order;
492 if (obd_pages > obd_max_pages)
493 obd_max_pages = obd_pages;
496 static inline void obd_pages_sub(int order)
498 obd_pages -= 1<< order;
501 #define obd_memory_sum() (obd_alloc)
502 #define obd_pages_sum() (obd_pages)
504 #define obd_memory_max() (obd_max_alloc)
505 #define obd_pages_max() (obd_max_pages)
509 #if defined(LUSTRE_UTILS) /* this version is for utils only */
510 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
512 (ptr) = cfs_alloc(size, (gfp_mask)); \
513 if (unlikely((ptr) == NULL)) { \
514 CERROR("kmalloc of '" #ptr "' (%d bytes) failed\n", \
517 memset(ptr, 0, size); \
518 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n", \
522 #else /* this version is for the kernel and liblustre */
523 #define OBD_FREE_RTN0(ptr) \
529 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
531 (ptr) = cfs_alloc(size, (gfp_mask)); \
532 if (likely((ptr) != NULL && \
533 (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
534 !obd_alloc_fail(ptr, #ptr, "km", size, \
535 __FILE__, __LINE__) || \
536 OBD_FREE_RTN0(ptr)))){ \
537 memset(ptr, 0, size); \
538 obd_memory_add(size); \
539 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p.\n", \
545 #ifndef OBD_ALLOC_MASK
546 # define OBD_ALLOC_MASK CFS_ALLOC_IO
549 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_ALLOC_MASK)
550 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, CFS_ALLOC_STD)
551 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
552 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
555 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
557 # define OBD_VMALLOC(ptr, size) \
559 (ptr) = cfs_alloc_large(size); \
560 if (unlikely((ptr) == NULL)) { \
561 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n", \
563 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
564 obd_memory_sum(), atomic_read(&libcfs_kmemory)); \
566 memset(ptr, 0, size); \
567 obd_memory_add(size); \
568 CDEBUG(D_MALLOC, "vmalloced '" #ptr "': %d at %p.\n", \
574 #ifdef CONFIG_DEBUG_SLAB
575 #define POISON(ptr, c, s) do {} while (0)
577 #define POISON(ptr, c, s) memset(ptr, c, s)
581 #define POISON_PAGE(page, val) do { memset(kmap(page), val, CFS_PAGE_SIZE); \
582 kunmap(page); } while (0)
584 #define POISON_PAGE(page, val) do { } while (0)
588 #define OBD_FREE(ptr, size) \
591 obd_memory_sub(size); \
592 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p.\n", \
594 POISON(ptr, 0x5a, size); \
596 (ptr) = (void *)0xdeadbeef; \
600 # ifdef HAVE_CALL_RCU_PARAM
601 # define my_call_rcu(rcu, cb) call_rcu(rcu, (void (*) (void *))(cb), rcu)
603 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb)
606 # define my_call_rcu(rcu, cb) (cb)(rcu)
609 #define OBD_FREE_RCU_CB(ptr, size, handle, free_cb) \
611 struct portals_handle *__h = (handle); \
613 __h->h_ptr = (ptr); \
614 __h->h_size = (size); \
615 __h->h_free_cb = (void (*)(void *, size_t))(free_cb); \
616 my_call_rcu(&__h->h_rcu, class_handle_free_cb); \
617 (ptr) = (void *)0xdeadbeef; \
619 #define OBD_FREE_RCU(ptr, size, handle) OBD_FREE_RCU_CB(ptr, size, handle, NULL)
621 #define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
622 #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
623 #define OBD_FREE_RCU_CB(ptr, size, handle, cb) ((*(cb))(ptr, size))
627 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
629 # define OBD_VFREE(ptr, size) \
632 obd_memory_sub(size); \
633 CDEBUG(D_MALLOC, "vfreed '" #ptr "': %d at %p.\n", \
635 POISON(ptr, 0x5a, size); \
636 cfs_free_large(ptr); \
637 (ptr) = (void *)0xdeadbeef; \
641 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
642 * HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
643 * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
644 #define OBD_SLAB_FREE_RTN0(ptr, slab) \
646 cfs_mem_cache_free((slab), (ptr)); \
650 #define OBD_SLAB_ALLOC(ptr, slab, type, size) \
652 LASSERT(!in_interrupt()); \
653 (ptr) = cfs_mem_cache_alloc(slab, (type)); \
654 if (likely((ptr) != NULL && \
655 (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
656 !obd_alloc_fail(ptr, #ptr, "slab-", size, \
657 __FILE__, __LINE__) || \
658 OBD_SLAB_FREE_RTN0(ptr, slab)))) { \
659 memset(ptr, 0, size); \
660 obd_memory_add(size); \
661 CDEBUG(D_MALLOC, "slab-alloced '"#ptr"': %d at %p.\n", \
666 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
668 #define OBD_SLAB_FREE(ptr, slab, size) \
671 CDEBUG(D_MALLOC, "slab-freed '" #ptr "': %d at %p.\n", \
673 obd_memory_sub(size); \
674 POISON(ptr, 0x5a, size); \
675 cfs_mem_cache_free(slab, ptr); \
676 (ptr) = (void *)0xdeadbeef; \
679 #define OBD_SLAB_ALLOC_PTR(ptr, slab) \
680 OBD_SLAB_ALLOC((ptr), (slab), CFS_ALLOC_STD, sizeof *(ptr))
681 #define OBD_SLAB_FREE_PTR(ptr, slab) \
682 OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
684 #define KEY_IS(str) \
685 (keylen >= (sizeof(str) - 1) && memcmp(key, str, sizeof(str) - 1) == 0)
687 /* Wrapper for contiguous page frame allocation */
688 #define OBD_PAGES_ALLOC(ptr, order, gfp_mask) \
690 (ptr) = cfs_alloc_pages(gfp_mask, order); \
691 if (unlikely((ptr) == NULL)) { \
692 CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
693 "failed\n", (int)(1 << (order)), \
694 (__u64)((1 << (order)) << CFS_PAGE_SHIFT)); \
695 CERROR(LPU64" total bytes and "LPU64" total pages " \
696 "("LPU64" bytes) allocated by Lustre, " \
697 "%d total bytes by LNET\n", \
699 obd_pages_sum() << CFS_PAGE_SHIFT, \
701 atomic_read(&libcfs_kmemory)); \
703 obd_pages_add(order); \
704 CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / " \
705 LPU64" bytes at %p.\n", \
706 (int)(1 << (order)), \
707 (__u64)((1 << (order)) << CFS_PAGE_SHIFT), ptr); \
711 #define OBD_PAGE_ALLOC(ptr, gfp_mask) \
712 OBD_PAGES_ALLOC(ptr, 0, gfp_mask)
714 #define OBD_PAGES_FREE(ptr, order) \
717 obd_pages_sub(order); \
718 CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
720 (int)(1 << (order)), (__u64)((1 << (order)) << CFS_PAGE_SHIFT),\
722 __cfs_free_pages(ptr, order); \
723 (ptr) = (void *)0xdeadbeef; \
726 #define OBD_PAGE_FREE(ptr) OBD_PAGES_FREE(ptr, 0)
728 #if defined(__linux__)
729 #include <linux/obd_support.h>
730 #elif defined(__APPLE__)
731 #include <darwin/obd_support.h>
732 #elif defined(__WINNT__)
733 #include <winnt/obd_support.h>
735 #error Unsupported operating system.