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/libcfs.h>
42 #include <lprocfs_status.h>
44 #if defined(__linux__)
45 #include <linux/obd_support.h>
46 #elif defined(__APPLE__)
47 #include <darwin/obd_support.h>
48 #elif defined(__WINNT__)
49 #include <winnt/obd_support.h>
51 #error Unsupported operating system.
54 /* global variables */
55 extern struct lprocfs_stats *obd_memory;
58 OBD_MEMORY_PAGES_STAT = 1,
63 OBD_FAIL_LOC_NOSET = 0,
64 OBD_FAIL_LOC_ORSET = 1,
65 OBD_FAIL_LOC_RESET = 2
68 extern unsigned long obd_fail_loc;
69 extern unsigned int obd_fail_val;
70 extern unsigned int obd_debug_peer_on_timeout;
71 extern unsigned int obd_dump_on_timeout;
72 extern unsigned int obd_dump_on_eviction;
73 /* obd_timeout should only be used for recovery, not for
74 networking / disk / timings affected by load (use Adaptive Timeouts) */
75 extern unsigned int obd_timeout; /* seconds */
76 extern unsigned int ldlm_timeout; /* seconds */
77 extern unsigned int at_min;
78 extern unsigned int at_max;
79 extern unsigned int at_history;
80 extern int at_early_margin;
82 extern unsigned int obd_sync_filter;
83 extern unsigned int obd_max_dirty_pages;
84 extern atomic_t obd_dirty_pages;
85 extern atomic_t obd_dirty_transit_pages;
86 extern cfs_waitq_t obd_race_waitq;
87 extern int obd_race_state;
88 extern unsigned int obd_alloc_fail_rate;
90 int __obd_fail_check_set(__u32 id, __u32 value, int set);
91 int __obd_fail_timeout_set(__u32 id, __u32 value, int ms, int set);
94 int obd_alloc_fail(const void *ptr, const char *name, const char *type,
95 size_t size, const char *file, int line);
97 /* Timeout definitions */
98 #define OBD_TIMEOUT_DEFAULT 100
99 #define LDLM_TIMEOUT_DEFAULT 20
100 #define MDS_LDLM_TIMEOUT_DEFAULT 6
101 /* Time to wait for all clients to reconnect during recovery */
102 /* Should be very conservative; must catch the first reconnect after reboot */
103 #define OBD_RECOVERY_FACTOR (3) /* times obd_timeout */
104 /* Change recovery-small 26b time if you change this */
105 #define PING_INTERVAL max(obd_timeout / 4, 1U)
106 /* Client may skip 1 ping; we must wait at least 2.5. But for multiple
107 * failover targets the client only pings one server at a time, and pings
108 * can be lost on a loaded network. Since eviction has serious consequences,
109 * and there's no urgent need to evict a client just because it's idle, we
110 * should be very conservative here. */
111 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
112 #define DISK_TIMEOUT 50 /* Beyond this we warn about disk speed */
113 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
114 /* Max connect interval for nonresponsive servers; ~50s to avoid building up
115 connect requests in the LND queues, but within obd_timeout so we don't
116 miss the recovery window */
117 #define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN,obd_timeout))
118 #define CONNECTION_SWITCH_INC 5 /* Connection timeout backoff */
120 /* In general this should be low to have quick detection of a system
121 running on a backup server. (If it's too low, import_select_connection
122 will increase the timeout anyhow.) */
123 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
125 /* ...but for very large systems (e.g. CRAY) we need to keep the initial
126 connect t.o. high (bz 10803), because they will nearly ALWAYS be doing the
127 connects for the first time (clients "reboot" after every process, so no
128 chance to generate adaptive timeout data. */
129 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/2)
131 /* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
132 #define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
133 INITIAL_CONNECT_TIMEOUT)
134 #define LONG_UNLINK 300 /* Unlink should happen before now */
137 * Time interval of shrink, if the client is "idle" more than this interval,
138 * then the ll_grant thread will return the requested grant space to filter
140 #define GRANT_SHRINK_INTERVAL 1200/*20 minutes*/
142 #define OBD_FAIL_MDS 0x100
143 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
144 #define OBD_FAIL_MDS_GETATTR_NET 0x102
145 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
146 #define OBD_FAIL_MDS_READPAGE_NET 0x104
147 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
148 #define OBD_FAIL_MDS_SENDPAGE 0x106
149 #define OBD_FAIL_MDS_REINT_NET 0x107
150 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
151 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
152 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
153 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
154 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
155 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
156 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
157 #define OBD_FAIL_MDS_REINT_LINK 0x10f
158 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
159 #define OBD_FAIL_MDS_REINT_RENAME 0x111
160 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
161 #define OBD_FAIL_MDS_OPEN_NET 0x113
162 #define OBD_FAIL_MDS_OPEN_PACK 0x114
163 #define OBD_FAIL_MDS_CLOSE_NET 0x115
164 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
165 #define OBD_FAIL_MDS_CONNECT_NET 0x117
166 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
167 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
168 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
169 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
170 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
171 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
172 #define OBD_FAIL_MDS_STATFS_NET 0x11e
173 #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f
174 #define OBD_FAIL_MDS_PIN_NET 0x120
175 #define OBD_FAIL_MDS_UNPIN_NET 0x121
176 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122
177 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123
178 #define OBD_FAIL_MDS_SYNC_NET 0x124
179 #define OBD_FAIL_MDS_SYNC_PACK 0x125
180 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126
181 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127
182 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128
183 #define OBD_FAIL_MDS_PAUSE_OPEN 0x129
184 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP 0x12a
185 #define OBD_FAIL_MDS_OPEN_CREATE 0x12b
186 #define OBD_FAIL_MDS_OST_SETATTR 0x12c
187 #define OBD_FAIL_MDS_QUOTACHECK_NET 0x12d
188 #define OBD_FAIL_MDS_QUOTACTL_NET 0x12e
189 #define OBD_FAIL_MDS_CLIENT_ADD 0x12f
190 #define OBD_FAIL_MDS_GETXATTR_NET 0x130
191 #define OBD_FAIL_MDS_GETXATTR_PACK 0x131
192 #define OBD_FAIL_MDS_SETXATTR_NET 0x132
193 #define OBD_FAIL_MDS_SETXATTR 0x133
194 #define OBD_FAIL_MDS_SETXATTR_WRITE 0x134
195 #define OBD_FAIL_MDS_FS_SETUP 0x135
196 #define OBD_FAIL_MDS_RESEND 0x136
197 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED 0x137
198 #define OBD_FAIL_MDS_LOV_SYNC_RACE 0x138
199 #define OBD_FAIL_MDS_OSC_PRECREATE 0x139
200 #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT 0x13a
201 #define OBD_FAIL_MDS_CLOSE_NET_REP 0x13b
202 #define OBD_FAIL_MDS_BLOCK_QUOTA_REQ 0x13c
203 #define OBD_FAIL_MDS_DROP_QUOTA_REQ 0x13d
204 #define OBD_FAIL_MDS_REMOVE_COMMON_EA 0x13e
205 #define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING 0x13f
206 #define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD 0x140
207 #define OBD_FAIL_MDS_LOV_PREP_CREATE 0x141
208 #define OBD_FAIL_MDS_REINT_DELAY 0x142
209 #define OBD_FAIL_MDS_OPEN_WAIT_CREATE 0x143
210 #define OBD_FAIL_MDS_READLINK_EPROTO 0x144
213 #define OBD_FAIL_MDS_IS_SUBDIR_NET 0x180
214 #define OBD_FAIL_MDS_IS_SUBDIR_PACK 0x181
215 #define OBD_FAIL_MDS_SET_INFO_NET 0x182
216 #define OBD_FAIL_MDS_WRITEPAGE_NET 0x183
217 #define OBD_FAIL_MDS_WRITEPAGE_PACK 0x184
218 #define OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS 0x185
219 #define OBD_FAIL_MDS_GET_INFO_NET 0x186
221 #define OBD_FAIL_OST 0x200
222 #define OBD_FAIL_OST_CONNECT_NET 0x201
223 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
224 #define OBD_FAIL_OST_GET_INFO_NET 0x203
225 #define OBD_FAIL_OST_CREATE_NET 0x204
226 #define OBD_FAIL_OST_DESTROY_NET 0x205
227 #define OBD_FAIL_OST_GETATTR_NET 0x206
228 #define OBD_FAIL_OST_SETATTR_NET 0x207
229 #define OBD_FAIL_OST_OPEN_NET 0x208
230 #define OBD_FAIL_OST_CLOSE_NET 0x209
231 #define OBD_FAIL_OST_BRW_NET 0x20a
232 #define OBD_FAIL_OST_PUNCH_NET 0x20b
233 #define OBD_FAIL_OST_STATFS_NET 0x20c
234 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
235 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
236 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
237 #define OBD_FAIL_OST_SYNC_NET 0x210
238 #define OBD_FAIL_OST_ALL_REPLY_NET 0x211
239 #define OBD_FAIL_OST_ALL_REQUEST_NET 0x212
240 #define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
241 #define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
242 #define OBD_FAIL_OST_ENOSPC 0x215
243 #define OBD_FAIL_OST_EROFS 0x216
244 #define OBD_FAIL_OST_ENOENT 0x217
245 #define OBD_FAIL_OST_QUOTACHECK_NET 0x218
246 #define OBD_FAIL_OST_QUOTACTL_NET 0x219
247 #define OBD_FAIL_OST_CHECKSUM_RECEIVE 0x21a
248 #define OBD_FAIL_OST_CHECKSUM_SEND 0x21b
249 #define OBD_FAIL_OST_BRW_SIZE 0x21c
250 #define OBD_FAIL_OST_DROP_REQ 0x21d
251 #define OBD_FAIL_OST_SETATTR_CREDITS 0x21e
252 #define OBD_FAIL_OST_HOLD_WRITE_RPC 0x21f
253 #define OBD_FAIL_OST_BRW_WRITE_BULK2 0x220
254 #define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
255 #define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
256 #define OBD_FAIL_OST_PAUSE_CREATE 0x223
257 #define OBD_FAIL_OST_BRW_PAUSE_PACK 0x224
258 #define OBD_FAIL_OST_CONNECT_NET2 0x225
259 #define OBD_FAIL_OST_NOMEM 0x226
261 #define OBD_FAIL_LDLM 0x300
262 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
263 #define OBD_FAIL_LDLM_ENQUEUE 0x302
264 #define OBD_FAIL_LDLM_CONVERT 0x303
265 #define OBD_FAIL_LDLM_CANCEL 0x304
266 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
267 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
268 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307
269 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
270 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
271 #define OBD_FAIL_LDLM_CREATE_RESOURCE 0x30a
272 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED 0x30b
273 #define OBD_FAIL_LDLM_REPLY 0x30c
274 #define OBD_FAIL_LDLM_RECOV_CLIENTS 0x30d
275 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
276 #define OBD_FAIL_LDLM_GLIMPSE 0x30f
277 #define OBD_FAIL_LDLM_CANCEL_RACE 0x310
278 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE 0x311
279 #define OBD_FAIL_LDLM_PAUSE_CANCEL 0x312
280 #define OBD_FAIL_LDLM_CLOSE_THREAD 0x313
281 #define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE 0x314
282 #define OBD_FAIL_LDLM_CP_CB_WAIT 0x315
283 #define OBD_FAIL_LDLM_OST_FAIL_RACE 0x316
284 #define OBD_FAIL_LDLM_INTR_CP_AST 0x317
285 #define OBD_FAIL_LDLM_CP_BL_RACE 0x318
288 #define OBD_FAIL_LDLM_SET_CONTENTION 0x385
290 #define OBD_FAIL_OSC 0x400
291 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
292 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
293 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
294 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
295 #define OBD_FAIL_OSC_MATCH 0x405
296 #define OBD_FAIL_OSC_BRW_PREP_REQ 0x406
297 #define OBD_FAIL_OSC_SHUTDOWN 0x407
298 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE 0x408
299 #define OBD_FAIL_OSC_CHECKSUM_SEND 0x409
300 #define OBD_FAIL_OSC_BRW_PREP_REQ2 0x40a
301 #define OBD_FAIL_OSC_CONNECT_CKSUM 0x40b
302 #define OBD_FAIL_OSC_CKSUM_ADLER_ONLY 0x40c
303 #define OBD_FAIL_OSC_DIO_PAUSE 0x40d
304 #define OBD_FAIL_OSC_OBJECT_CONTENTION 0x40e
305 #define OBD_FAIL_OSC_CP_CANCEL_RACE 0x40f
307 #define OBD_FAIL_PTLRPC 0x500
308 #define OBD_FAIL_PTLRPC_ACK 0x501
309 #define OBD_FAIL_PTLRPC_RQBD 0x502
310 #define OBD_FAIL_PTLRPC_BULK_GET_NET 0x503
311 #define OBD_FAIL_PTLRPC_BULK_PUT_NET 0x504
312 #define OBD_FAIL_PTLRPC_DROP_RPC 0x505
313 #define OBD_FAIL_PTLRPC_DELAY_SEND 0x506
314 #define OBD_FAIL_PTLRPC_DELAY_RECOV 0x507
315 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB 0x508
316 #define OBD_FAIL_PTLRPC_PAUSE_REQ 0x50a
317 #define OBD_FAIL_PTLRPC_PAUSE_REP 0x50c
318 #define OBD_FAIL_PTLRPC_IMP_DEACTIVE 0x50d
319 #define OBD_FAIL_PTLRPC_DUMP_LOG 0x50e
320 #define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
321 #define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
322 #define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT 0x511
323 #define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT 0x512
324 #define OBD_FAIL_PTLRPC_DROP_REQ_OPC 0x513
326 #define OBD_FAIL_OBD_PING_NET 0x600
327 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
328 #define OBD_FAIL_OBD_LOGD_NET 0x602
329 #define OBD_FAIL_OBD_QC_CALLBACK_NET 0x603
330 #define OBD_FAIL_OBD_DQACQ 0x604
331 #define OBD_FAIL_OBD_LLOG_SETUP 0x605
332 #define OBD_FAIL_OBD_LOG_CANCEL_REP 0x606
334 #define OBD_FAIL_TGT_REPLY_NET 0x700
335 #define OBD_FAIL_TGT_CONN_RACE 0x701
336 #define OBD_FAIL_TGT_FORCE_RECONNECT 0x702
337 #define OBD_FAIL_TGT_DELAY_CONNECT 0x703
338 #define OBD_FAIL_TGT_DELAY_RECONNECT 0x704
339 #define OBD_FAIL_TGT_DELAY_PRECREATE 0x705
340 #define OBD_FAIL_TGT_TOOMANY_THREADS 0x706
341 #define OBD_FAIL_TGT_REPLAY_DROP 0x707
342 #define OBD_FAIL_TGT_FAKE_EXP 0x708
343 #define OBD_FAIL_TGT_REPLAY_DELAY 0x709
344 #define OBD_FAIL_TGT_LAST_REPLAY 0x710
346 #define OBD_FAIL_MDC_REVALIDATE_PAUSE 0x800
347 #define OBD_FAIL_MDC_ENQUEUE_PAUSE 0x801
348 #define OBD_FAIL_MDC_OLD_EXT_FLAGS 0x802
349 #define OBD_FAIL_MDC_GETATTR_ENQUEUE 0x803
351 #define OBD_FAIL_MGS 0x900
352 #define OBD_FAIL_MGS_ALL_REQUEST_NET 0x901
353 #define OBD_FAIL_MGS_ALL_REPLY_NET 0x902
354 #define OBD_FAIL_MGC_PAUSE_PROCESS_LOG 0x903
355 #define OBD_FAIL_MGS_PAUSE_REQ 0x904
356 #define OBD_FAIL_MGS_PAUSE_TARGET_REG 0x905
358 #define OBD_FAIL_QUOTA_RET_QDATA 0xA02
359 #define OBD_FAIL_QUOTA_DELAY_REL 0xA03
361 #define OBD_FAIL_LPROC_REMOVE 0xB00
363 #define OBD_FAIL_GENERAL_ALLOC 0xC00
365 #define OBD_FAIL_SEQ 0x1000
366 #define OBD_FAIL_SEQ_QUERY_NET 0x1001
368 #define OBD_FAIL_FLD 0x1100
369 #define OBD_FAIL_FLD_QUERY_NET 0x1101
371 #define OBD_FAIL_SEC_CTX 0x1200
372 #define OBD_FAIL_SEC_CTX_INIT_NET 0x1201
373 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET 0x1202
374 #define OBD_FAIL_SEC_CTX_FINI_NET 0x1203
375 #define OBD_FAIL_SEC_CTX_HDL_PAUSE 0x1204
377 #define OBD_FAIL_LLOG 0x1300
378 #define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET 0x1301
379 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET 0x1302
380 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET 0x1303
381 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
382 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET 0x1305
383 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET 0x1306
384 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET 0x1307
385 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET 0x1308
386 #define OBD_FAIL_LLOG_CATINFO_NET 0x1309
389 /* Failure injection control */
390 #define OBD_FAIL_MASK_SYS 0x0000FF00
391 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
393 #define OBD_FAILED_BIT 30
394 /* OBD_FAILED is 0x40000000 */
395 #define OBD_FAILED (1 << OBD_FAILED_BIT)
397 #define OBD_FAIL_ONCE_BIT 31
398 /* OBD_FAIL_ONCE is 0x80000000 */
399 #define OBD_FAIL_ONCE (1 << OBD_FAIL_ONCE_BIT)
401 /* The following flags aren't made to be combined */
402 #define OBD_FAIL_SKIP 0x20000000 /* skip N times then fail */
403 #define OBD_FAIL_SOME 0x10000000 /* only fail N times */
404 #define OBD_FAIL_RAND 0x08000000 /* fail 1/N of the times */
405 #define OBD_FAIL_USR1 0x04000000 /* user flag */
407 #define OBD_FAIL_PRECHECK(id) (obd_fail_loc && \
408 (obd_fail_loc & OBD_FAIL_MASK_LOC) == \
409 ((id) & OBD_FAIL_MASK_LOC))
411 static inline int obd_fail_check_set(__u32 id, __u32 value, int set)
414 if (unlikely(OBD_FAIL_PRECHECK(id) &&
415 (ret = __obd_fail_check_set(id, value, set)))) {
416 CERROR("*** obd_fail_loc=%x ***\n", id);
421 /* If id hit obd_fail_loc, return 1, otherwise return 0 */
422 #define OBD_FAIL_CHECK(id) \
423 obd_fail_check_set(id, 0, OBD_FAIL_LOC_NOSET)
425 /* If id hit obd_fail_loc, obd_fail_loc |= value and return 1,
426 * otherwise return 0 */
427 #define OBD_FAIL_CHECK_ORSET(id, value) \
428 obd_fail_check_set(id, value, OBD_FAIL_LOC_ORSET)
430 /* If id hit obd_fail_loc, obd_fail_loc = value and return 1,
431 * otherwise return 0 */
432 #define OBD_FAIL_CHECK_RESET(id, value) \
433 obd_fail_check_set(id, value, OBD_FAIL_LOC_RESET)
436 static inline int obd_fail_timeout_set(__u32 id, __u32 value, int ms, int set)
438 if (unlikely(OBD_FAIL_PRECHECK(id)))
439 return __obd_fail_timeout_set(id, value, ms, set);
444 /* If id hit obd_fail_loc, sleep for seconds or milliseconds */
445 #define OBD_FAIL_TIMEOUT(id, secs) \
446 obd_fail_timeout_set(id, 0, secs * 1000, OBD_FAIL_LOC_NOSET)
448 #define OBD_FAIL_TIMEOUT_MS(id, ms) \
449 obd_fail_timeout_set(id, 0, ms, OBD_FAIL_LOC_NOSET)
451 /* If id hit obd_fail_loc, obd_fail_loc |= value and
452 * sleep seconds or milliseconds */
453 #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) \
454 obd_fail_timeout_set(id, value, secs * 1000, OBD_FAIL_LOC_ORSET)
456 #define OBD_FAIL_TIMEOUT_MS_ORSET(id, value, ms) \
457 obd_fail_timeout_set(id, value, ms, OBD_FAIL_LOC_ORSET)
460 static inline void obd_fail_write(int id, struct super_block *sb)
462 /* We set FAIL_ONCE because we never "un-fail" a device */
463 if (OBD_FAIL_CHECK_ORSET(id & ~OBD_FAIL_ONCE, OBD_FAIL_ONCE)) {
465 BDEVNAME_DECLARE_STORAGE(tmp);
466 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
467 id, ll_bdevname(sb, tmp));
469 /* TODO-CMD: fix getting jdev */
470 __lvfs_set_rdonly(lvfs_sbdev(sb), (lvfs_sbdev_type)0);
473 #define OBD_FAIL_WRITE(id, sb) obd_fail_write(id, sb)
475 /* The idea here is to synchronise two threads to force a race. The
476 * first thread that calls this with a matching fail_loc is put to
477 * sleep. The next thread that calls with the same fail_loc wakes up
478 * the first and continues. */
479 static inline void obd_race(__u32 id)
481 if (OBD_FAIL_PRECHECK(id)) {
482 if (unlikely(__obd_fail_check_set(id, 0, OBD_FAIL_LOC_NOSET))) {
484 CERROR("obd_race id %x sleeping\n", id);
485 OBD_SLEEP_ON(obd_race_waitq, obd_race_state != 0);
486 CERROR("obd_fail_race id %x awake\n", id);
488 CERROR("obd_fail_race id %x waking\n", id);
490 wake_up(&obd_race_waitq);
494 #define OBD_RACE(id) obd_race(id)
496 /* sigh. an expedient fix until OBD_RACE is fixed up */
497 #define OBD_RACE(foo) do {} while(0)
500 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
502 extern atomic_t libcfs_kmemory;
505 #define obd_memory_add(size) \
506 lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
507 #define obd_memory_sub(size) \
508 lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
509 #define obd_memory_sum() \
510 lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT, \
511 LPROCFS_FIELDS_FLAGS_SUM)
512 #define obd_pages_add(order) \
513 lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT, \
514 (long)(1 << (order)))
515 #define obd_pages_sub(order) \
516 lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT, \
517 (long)(1 << (order)))
518 #define obd_pages_sum() \
519 lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT, \
520 LPROCFS_FIELDS_FLAGS_SUM)
522 extern void obd_update_maxusage(void);
523 extern __u64 obd_memory_max(void);
524 extern __u64 obd_pages_max(void);
528 extern __u64 obd_alloc;
529 extern __u64 obd_pages;
531 extern __u64 obd_max_alloc;
532 extern __u64 obd_max_pages;
534 static inline void obd_memory_add(long size)
537 if (obd_alloc > obd_max_alloc)
538 obd_max_alloc = obd_alloc;
541 static inline void obd_memory_sub(long size)
546 static inline void obd_pages_add(int order)
548 obd_pages += 1<< order;
549 if (obd_pages > obd_max_pages)
550 obd_max_pages = obd_pages;
553 static inline void obd_pages_sub(int order)
555 obd_pages -= 1<< order;
558 #define obd_memory_sum() (obd_alloc)
559 #define obd_pages_sum() (obd_pages)
561 #define obd_memory_max() (obd_max_alloc)
562 #define obd_pages_max() (obd_max_pages)
566 #define OBD_DEBUG_MEMUSAGE (1)
568 #if OBD_DEBUG_MEMUSAGE
569 #define OBD_ALLOC_POST(ptr, size, name) \
570 obd_memory_add(size); \
571 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \
574 #define OBD_FREE_PRE(ptr, size, name) \
576 obd_memory_sub(size); \
577 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \
579 POISON(ptr, 0x5a, size)
581 #else /* !OBD_DEBUG_MEMUSAGE */
583 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
584 #define OBD_FREE_PRE(ptr, size, name) ((void)0)
586 #endif /* !OBD_DEBUG_MEMUSAGE */
588 #ifdef RANDOM_FAIL_ALLOC
589 #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
591 #define HAS_FAIL_ALLOC_FLAG 0
594 #define OBD_ALLOC_FAIL_BITS 24
595 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
596 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
598 #if defined(LUSTRE_UTILS) /* this version is for utils only */
599 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
601 (ptr) = cfs_alloc(size, (gfp_mask)); \
602 if (unlikely((ptr) == NULL)) { \
603 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
604 (int)(size), __FILE__, __LINE__); \
606 memset(ptr, 0, size); \
607 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n", \
611 #else /* this version is for the kernel and liblustre */
612 #define OBD_FREE_RTN0(ptr) \
618 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
620 (ptr) = cfs_alloc(size, (gfp_mask)); \
621 if (likely((ptr) != NULL && \
622 (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
623 !obd_alloc_fail(ptr, #ptr, "km", size, \
624 __FILE__, __LINE__) || \
625 OBD_FREE_RTN0(ptr)))){ \
626 memset(ptr, 0, size); \
627 OBD_ALLOC_POST(ptr, size, "kmalloced"); \
632 #ifndef OBD_ALLOC_MASK
633 # define OBD_ALLOC_MASK CFS_ALLOC_IO
636 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_ALLOC_MASK)
637 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, CFS_ALLOC_STD)
638 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
639 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
642 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
644 # define OBD_VMALLOC(ptr, size) \
646 (ptr) = cfs_alloc_large(size); \
647 if (unlikely((ptr) == NULL)) { \
648 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n", \
650 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
651 obd_memory_sum(), atomic_read(&libcfs_kmemory)); \
653 memset(ptr, 0, size); \
654 OBD_ALLOC_POST(ptr, size, "vmalloced"); \
659 #ifdef CONFIG_DEBUG_SLAB
660 #define POISON(ptr, c, s) do {} while (0)
661 #define POISON_PTR(ptr) ((void)0)
663 #define POISON(ptr, c, s) memset(ptr, c, s)
664 #define POISON_PTR(ptr) (ptr) = (void *)0xdeadbeef
668 #define POISON_PAGE(page, val) do { memset(kmap(page), val, CFS_PAGE_SIZE); \
669 kunmap(page); } while (0)
671 #define POISON_PAGE(page, val) do { } while (0)
675 #define OBD_FREE(ptr, size) \
677 OBD_FREE_PRE(ptr, size, "kfreed"); \
684 # ifdef HAVE_CALL_RCU_PARAM
685 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb, rcu)
687 # define my_call_rcu(rcu, cb) call_rcu(rcu, cb)
690 # define my_call_rcu(rcu, cb) (cb)(rcu)
693 #define OBD_FREE_RCU_CB(ptr, size, handle, free_cb) \
695 struct portals_handle *__h = (handle); \
697 __h->h_ptr = (ptr); \
698 __h->h_size = (size); \
699 __h->h_free_cb = (void (*)(void *, size_t))(free_cb); \
700 my_call_rcu(&__h->h_rcu, class_handle_free_cb); \
703 #define OBD_FREE_RCU(ptr, size, handle) OBD_FREE_RCU_CB(ptr, size, handle, NULL)
706 #define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
707 #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
708 #define OBD_FREE_RCU_CB(ptr, size, handle, cb) ((*(cb))(ptr, size))
709 #endif /* ifdef __KERNEL__ */
712 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
714 # define OBD_VFREE(ptr, size) \
716 OBD_FREE_PRE(ptr, size, "vfreed"); \
717 cfs_free_large(ptr); \
722 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
723 * HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
724 * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
725 #define OBD_SLAB_FREE_RTN0(ptr, slab) \
727 cfs_mem_cache_free((slab), (ptr)); \
731 #define OBD_SLAB_ALLOC(ptr, slab, type, size) \
733 LASSERT(ergo(type != CFS_ALLOC_ATOMIC, !in_interrupt())); \
734 (ptr) = cfs_mem_cache_alloc(slab, (type)); \
735 if (likely((ptr) != NULL && \
736 (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
737 !obd_alloc_fail(ptr, #ptr, "slab-", size, \
738 __FILE__, __LINE__) || \
739 OBD_SLAB_FREE_RTN0(ptr, slab)))) { \
740 memset(ptr, 0, size); \
741 OBD_ALLOC_POST(ptr, size, "slab-alloced"); \
745 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
747 #define OBD_SLAB_FREE(ptr, slab, size) \
749 OBD_FREE_PRE(ptr, size, "slab-freed"); \
750 cfs_mem_cache_free(slab, ptr); \
754 #define OBD_SLAB_ALLOC_PTR(ptr, slab) \
755 OBD_SLAB_ALLOC((ptr), (slab), CFS_ALLOC_STD, sizeof *(ptr))
756 #define OBD_SLAB_FREE_PTR(ptr, slab) \
757 OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
758 #define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, gfp) \
759 OBD_SLAB_ALLOC((ptr), (slab), (gfp), sizeof *(ptr))
761 #define KEY_IS(str) \
762 (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
764 /* Wrapper for contiguous page frame allocation */
765 #define OBD_PAGES_ALLOC(ptr, order, gfp_mask) \
767 (ptr) = cfs_alloc_pages(gfp_mask, order); \
768 if (unlikely((ptr) == NULL)) { \
769 CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
770 "failed\n", (int)(1 << (order)), \
771 (__u64)((1 << (order)) << CFS_PAGE_SHIFT)); \
772 CERROR(LPU64" total bytes and "LPU64" total pages " \
773 "("LPU64" bytes) allocated by Lustre, " \
774 "%d total bytes by LNET\n", \
776 obd_pages_sum() << CFS_PAGE_SHIFT, \
778 atomic_read(&libcfs_kmemory)); \
780 obd_pages_add(order); \
781 CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / " \
782 LPU64" bytes at %p.\n", \
783 (int)(1 << (order)), \
784 (__u64)((1 << (order)) << CFS_PAGE_SHIFT), ptr); \
788 #define OBD_PAGE_ALLOC(ptr, gfp_mask) \
789 OBD_PAGES_ALLOC(ptr, 0, gfp_mask)
791 #define OBD_PAGES_FREE(ptr, order) \
794 obd_pages_sub(order); \
795 CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
797 (int)(1 << (order)), (__u64)((1 << (order)) << CFS_PAGE_SHIFT),\
799 __cfs_free_pages(ptr, order); \
800 (ptr) = (void *)0xdeadbeef; \
803 #define OBD_PAGE_FREE(ptr) OBD_PAGES_FREE(ptr, 0)