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[fs/lustre-release.git] / lustre / include / obd_support.h
1 /*
2  * GPL HEADER START
3  *
4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 only,
8  * as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License version 2 for more details (a copy is included
14  * in the LICENSE file that accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License
17  * version 2 along with this program; If not, see
18  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
19  *
20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21  * CA 95054 USA or visit www.sun.com if you need additional information or
22  * have any questions.
23  *
24  * GPL HEADER END
25  */
26 /*
27  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28  * Use is subject to license terms.
29  *
30  * Copyright (c) 2011, 2014, Intel Corporation.
31  */
32 /*
33  * This file is part of Lustre, http://www.lustre.org/
34  * Lustre is a trademark of Sun Microsystems, Inc.
35  */
36
37 #ifndef _OBD_SUPPORT
38 #define _OBD_SUPPORT
39
40 #ifndef __KERNEL__
41 # error Userspace should not include obd_support.h.
42 #endif /* !__KERNEL__ */
43
44 #include <linux/atomic.h>
45 #include <linux/highmem.h>
46 #include <linux/slab.h>
47 #include <linux/types.h>
48
49 #include <libcfs/libcfs.h>
50 #include <lprocfs_status.h>
51 #include <lustre_handles.h>
52
53 /* global variables */
54 extern struct lprocfs_stats *obd_memory;
55 enum {
56         OBD_MEMORY_STAT = 0,
57         OBD_MEMORY_PAGES_STAT = 1,
58         OBD_STATS_NUM,
59 };
60
61 extern unsigned int obd_debug_peer_on_timeout;
62 extern unsigned int obd_dump_on_timeout;
63 extern unsigned int obd_dump_on_eviction;
64 /* obd_timeout should only be used for recovery, not for
65    networking / disk / timings affected by load (use Adaptive Timeouts) */
66 extern unsigned int obd_timeout;          /* seconds */
67 extern unsigned int ldlm_timeout;         /* seconds */
68 extern unsigned int obd_timeout_set;
69 extern unsigned int ldlm_timeout_set;
70 extern unsigned int bulk_timeout;
71 extern unsigned int at_min;
72 extern unsigned int at_max;
73 extern unsigned int at_history;
74 extern int at_early_margin;
75 extern int at_extra;
76 extern unsigned long obd_max_dirty_pages;
77 extern atomic_long_t obd_dirty_pages;
78 extern atomic_long_t obd_dirty_transit_pages;
79 extern unsigned int obd_alloc_fail_rate;
80 extern char obd_jobid_var[];
81
82 /* lvfs.c */
83 int obd_alloc_fail(const void *ptr, const char *name, const char *type,
84                    size_t size, const char *file, int line);
85
86 /* Some hash init argument constants */
87 #define HASH_POOLS_BKT_BITS 3
88 #define HASH_POOLS_CUR_BITS 3
89 #define HASH_POOLS_MAX_BITS 7
90 #define HASH_UUID_BKT_BITS 5
91 #define HASH_UUID_CUR_BITS 7
92 #define HASH_UUID_MAX_BITS 12
93 #define HASH_NID_BKT_BITS 5
94 #define HASH_NID_CUR_BITS 7
95 #define HASH_NID_MAX_BITS 12
96 #define HASH_NID_STATS_BKT_BITS 5
97 #define HASH_NID_STATS_CUR_BITS 7
98 #define HASH_NID_STATS_MAX_BITS 12
99 #define HASH_LQE_BKT_BITS 5
100 #define HASH_LQE_CUR_BITS 7
101 #define HASH_LQE_MAX_BITS 12
102 #define HASH_CONN_BKT_BITS 5
103 #define HASH_CONN_CUR_BITS 5
104 #define HASH_CONN_MAX_BITS 15
105 #define HASH_EXP_LOCK_BKT_BITS  5
106 #define HASH_EXP_LOCK_CUR_BITS  7
107 #define HASH_EXP_LOCK_MAX_BITS  16
108 #define HASH_CL_ENV_BKT_BITS    5
109 #define HASH_CL_ENV_BITS        10
110 #define HASH_JOB_STATS_BKT_BITS 5
111 #define HASH_JOB_STATS_CUR_BITS 7
112 #define HASH_JOB_STATS_MAX_BITS 12
113
114 /* Timeout definitions */
115 #define OBD_TIMEOUT_DEFAULT             100
116 #define LDLM_TIMEOUT_DEFAULT            20
117 #define MDS_LDLM_TIMEOUT_DEFAULT        6
118 /* Time to wait for all clients to reconnect during recovery (hard limit) */
119 #define OBD_RECOVERY_TIME_HARD          (obd_timeout * 9)
120 /* Time to wait for all clients to reconnect during recovery (soft limit) */
121 /* Should be very conservative; must catch the first reconnect after reboot */
122 #define OBD_RECOVERY_TIME_SOFT          (obd_timeout * 3)
123 /* Change recovery-small 26b time if you change this */
124 #define PING_INTERVAL max(obd_timeout / 4, 1U)
125 /* a bit more than maximal journal commit time in seconds */
126 #define PING_INTERVAL_SHORT min(PING_INTERVAL, 7U)
127 /* Client may skip 1 ping; we must wait at least 2.5. But for multiple
128  * failover targets the client only pings one server at a time, and pings
129  * can be lost on a loaded network. Since eviction has serious consequences,
130  * and there's no urgent need to evict a client just because it's idle, we
131  * should be very conservative here. */
132 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
133 #define DISK_TIMEOUT 50          /* Beyond this we warn about disk speed */
134 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
135  /* Max connect interval for nonresponsive servers; ~50s to avoid building up
136     connect requests in the LND queues, but within obd_timeout so we don't
137     miss the recovery window */
138 #define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN,obd_timeout))
139 #define CONNECTION_SWITCH_INC 5  /* Connection timeout backoff */
140 /* In general this should be low to have quick detection of a system
141    running on a backup server. (If it's too low, import_select_connection
142    will increase the timeout anyhow.)  */
143 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
144 /* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
145 #define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
146                              INITIAL_CONNECT_TIMEOUT)
147 /* The min time a target should wait for clients to reconnect in recovery */
148 #define OBD_RECOVERY_TIME_MIN    (2*RECONNECT_DELAY_MAX)
149 #define OBD_IR_FACTOR_MIN         1
150 #define OBD_IR_FACTOR_MAX         10
151 #define OBD_IR_FACTOR_DEFAULT    (OBD_IR_FACTOR_MAX/2)
152 /* default timeout for the MGS to become IR_FULL */
153 #define OBD_IR_MGS_TIMEOUT       (4*obd_timeout)
154 #define LONG_UNLINK 300          /* Unlink should happen before now */
155
156 /**
157  * Time interval of shrink, if the client is "idle" more than this interval,
158  * then the ll_grant thread will return the requested grant space to filter
159  */
160 #define GRANT_SHRINK_INTERVAL            1200/*20 minutes*/
161
162 #define OBD_FAIL_MDS                     0x100
163 #define OBD_FAIL_MDS_HANDLE_UNPACK       0x101
164 #define OBD_FAIL_MDS_GETATTR_NET         0x102
165 #define OBD_FAIL_MDS_GETATTR_PACK        0x103
166 #define OBD_FAIL_MDS_READPAGE_NET        0x104
167 #define OBD_FAIL_MDS_READPAGE_PACK       0x105
168 #define OBD_FAIL_MDS_SENDPAGE            0x106
169 #define OBD_FAIL_MDS_REINT_NET           0x107
170 #define OBD_FAIL_MDS_REINT_UNPACK        0x108
171 #define OBD_FAIL_MDS_REINT_SETATTR       0x109
172 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
173 #define OBD_FAIL_MDS_REINT_CREATE        0x10b
174 #define OBD_FAIL_MDS_REINT_CREATE_WRITE  0x10c
175 #define OBD_FAIL_MDS_REINT_UNLINK        0x10d
176 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE  0x10e
177 #define OBD_FAIL_MDS_REINT_LINK          0x10f
178 #define OBD_FAIL_MDS_REINT_LINK_WRITE    0x110
179 #define OBD_FAIL_MDS_REINT_RENAME        0x111
180 #define OBD_FAIL_MDS_REINT_RENAME_WRITE  0x112
181 #define OBD_FAIL_MDS_OPEN_NET            0x113
182 #define OBD_FAIL_MDS_OPEN_PACK           0x114
183 #define OBD_FAIL_MDS_CLOSE_NET           0x115
184 #define OBD_FAIL_MDS_CLOSE_PACK          0x116
185 #define OBD_FAIL_MDS_CONNECT_NET         0x117
186 #define OBD_FAIL_MDS_CONNECT_PACK        0x118
187 #define OBD_FAIL_MDS_REINT_NET_REP       0x119
188 #define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
189 #define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
190 #define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
191 #define OBD_FAIL_MDS_STATFS_PACK         0x11d
192 #define OBD_FAIL_MDS_STATFS_NET          0x11e
193 #define OBD_FAIL_MDS_GETATTR_NAME_NET    0x11f
194 #define OBD_FAIL_MDS_PIN_NET             0x120
195 #define OBD_FAIL_MDS_UNPIN_NET           0x121
196 #define OBD_FAIL_MDS_ALL_REPLY_NET       0x122
197 #define OBD_FAIL_MDS_ALL_REQUEST_NET     0x123
198 #define OBD_FAIL_MDS_SYNC_NET            0x124
199 #define OBD_FAIL_MDS_SYNC_PACK           0x125
200 /*      OBD_FAIL_MDS_DONE_WRITING_NET    0x126 obsolete since 2.8.0 */
201 /*      OBD_FAIL_MDS_DONE_WRITING_PACK   0x127 obsolete since 2.8.0 */
202 #define OBD_FAIL_MDS_ALLOC_OBDO          0x128
203 #define OBD_FAIL_MDS_PAUSE_OPEN          0x129
204 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP    0x12a
205 #define OBD_FAIL_MDS_OPEN_CREATE         0x12b
206 #define OBD_FAIL_MDS_OST_SETATTR         0x12c
207 /*      OBD_FAIL_MDS_QUOTACHECK_NET      0x12d obsolete since 2.4 */
208 #define OBD_FAIL_MDS_QUOTACTL_NET        0x12e
209 #define OBD_FAIL_MDS_CLIENT_ADD          0x12f
210 #define OBD_FAIL_MDS_GETXATTR_NET        0x130
211 #define OBD_FAIL_MDS_GETXATTR_PACK       0x131
212 #define OBD_FAIL_MDS_SETXATTR_NET        0x132
213 #define OBD_FAIL_MDS_SETXATTR            0x133
214 #define OBD_FAIL_MDS_SETXATTR_WRITE      0x134
215 #define OBD_FAIL_MDS_FS_SETUP            0x135
216 #define OBD_FAIL_MDS_RESEND              0x136
217 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED  0x137
218 #define OBD_FAIL_MDS_LOV_SYNC_RACE       0x138
219 #define OBD_FAIL_MDS_OSC_PRECREATE       0x139
220 #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT   0x13a
221 #define OBD_FAIL_MDS_CLOSE_NET_REP       0x13b
222 #define OBD_FAIL_MDS_BLOCK_QUOTA_REQ     0x13c
223 #define OBD_FAIL_MDS_DROP_QUOTA_REQ      0x13d
224 #define OBD_FAIL_MDS_REMOVE_COMMON_EA    0x13e
225 #define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING   0x13f
226 #define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD    0x140
227 #define OBD_FAIL_MDS_LOV_PREP_CREATE     0x141
228 #define OBD_FAIL_MDS_REINT_DELAY         0x142
229 #define OBD_FAIL_MDS_READLINK_EPROTO     0x143
230 #define OBD_FAIL_MDS_OPEN_WAIT_CREATE    0x144
231 #define OBD_FAIL_MDS_PDO_LOCK            0x145
232 #define OBD_FAIL_MDS_PDO_LOCK2           0x146
233 #define OBD_FAIL_MDS_OSC_CREATE_FAIL     0x147
234 #define OBD_FAIL_MDS_NEGATIVE_POSITIVE   0x148
235 #define OBD_FAIL_MDS_HSM_STATE_GET_NET          0x149
236 #define OBD_FAIL_MDS_HSM_STATE_SET_NET          0x14a
237 #define OBD_FAIL_MDS_HSM_PROGRESS_NET           0x14b
238 #define OBD_FAIL_MDS_HSM_REQUEST_NET            0x14c
239 #define OBD_FAIL_MDS_HSM_CT_REGISTER_NET        0x14d
240 #define OBD_FAIL_MDS_HSM_CT_UNREGISTER_NET      0x14e
241 #define OBD_FAIL_MDS_SWAP_LAYOUTS_NET           0x14f
242 #define OBD_FAIL_MDS_HSM_ACTION_NET             0x150
243 #define OBD_FAIL_MDS_CHANGELOG_INIT             0x151
244 #define OBD_FAIL_MDS_HSM_SWAP_LAYOUTS           0x152
245 #define OBD_FAIL_MDS_RENAME              0x153
246 #define OBD_FAIL_MDS_RENAME2             0x154
247 #define OBD_FAIL_MDS_RENAME3             0x155
248 #define OBD_FAIL_MDS_RENAME4             0x156
249 #define OBD_FAIL_MDS_LDLM_REPLY_NET      0x157
250
251 /* layout lock */
252 #define OBD_FAIL_MDS_NO_LL_GETATTR       0x170
253 #define OBD_FAIL_MDS_NO_LL_OPEN          0x171
254 #define OBD_FAIL_MDS_LL_BLOCK            0x172
255
256 /* CMD */
257 #define OBD_FAIL_MDS_IS_SUBDIR_NET       0x180
258 #define OBD_FAIL_MDS_IS_SUBDIR_PACK      0x181
259 #define OBD_FAIL_MDS_SET_INFO_NET        0x182
260 #define OBD_FAIL_MDS_WRITEPAGE_NET       0x183
261 #define OBD_FAIL_MDS_WRITEPAGE_PACK      0x184
262 #define OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS 0x185
263 #define OBD_FAIL_MDS_GET_INFO_NET        0x186
264 #define OBD_FAIL_MDS_DQACQ_NET           0x187
265
266 /* OI scrub */
267 #define OBD_FAIL_OSD_SCRUB_DELAY                        0x190
268 #define OBD_FAIL_OSD_SCRUB_CRASH                        0x191
269 #define OBD_FAIL_OSD_SCRUB_FATAL                        0x192
270 #define OBD_FAIL_OSD_FID_MAPPING                        0x193
271 #define OBD_FAIL_OSD_LMA_INCOMPAT                       0x194
272 #define OBD_FAIL_OSD_COMPAT_INVALID_ENTRY               0x195
273 #define OBD_FAIL_OSD_COMPAT_NO_ENTRY                    0x196
274
275 #define OBD_FAIL_OST                     0x200
276 #define OBD_FAIL_OST_CONNECT_NET         0x201
277 #define OBD_FAIL_OST_DISCONNECT_NET      0x202
278 #define OBD_FAIL_OST_GET_INFO_NET        0x203
279 #define OBD_FAIL_OST_CREATE_NET          0x204
280 #define OBD_FAIL_OST_DESTROY_NET         0x205
281 #define OBD_FAIL_OST_GETATTR_NET         0x206
282 #define OBD_FAIL_OST_SETATTR_NET         0x207
283 #define OBD_FAIL_OST_OPEN_NET            0x208
284 #define OBD_FAIL_OST_CLOSE_NET           0x209
285 #define OBD_FAIL_OST_BRW_NET             0x20a
286 #define OBD_FAIL_OST_PUNCH_NET           0x20b
287 #define OBD_FAIL_OST_STATFS_NET          0x20c
288 #define OBD_FAIL_OST_HANDLE_UNPACK       0x20d
289 #define OBD_FAIL_OST_BRW_WRITE_BULK      0x20e
290 #define OBD_FAIL_OST_BRW_READ_BULK       0x20f
291 #define OBD_FAIL_OST_SYNC_NET            0x210
292 #define OBD_FAIL_OST_ALL_REPLY_NET       0x211
293 #define OBD_FAIL_OST_ALL_REQUEST_NET     0x212
294 #define OBD_FAIL_OST_LDLM_REPLY_NET      0x213
295 #define OBD_FAIL_OST_BRW_PAUSE_BULK      0x214
296 #define OBD_FAIL_OST_ENOSPC              0x215
297 #define OBD_FAIL_OST_EROFS               0x216
298 #define OBD_FAIL_OST_ENOENT              0x217
299 /*      OBD_FAIL_OST_QUOTACHECK_NET      0x218 obsolete since 2.4 */
300 #define OBD_FAIL_OST_QUOTACTL_NET        0x219
301 #define OBD_FAIL_OST_CHECKSUM_RECEIVE    0x21a
302 #define OBD_FAIL_OST_CHECKSUM_SEND       0x21b
303 #define OBD_FAIL_OST_BRW_SIZE            0x21c
304 #define OBD_FAIL_OST_DROP_REQ            0x21d
305 #define OBD_FAIL_OST_SETATTR_CREDITS     0x21e
306 #define OBD_FAIL_OST_HOLD_WRITE_RPC      0x21f
307 #define OBD_FAIL_OST_BRW_WRITE_BULK2     0x220
308 #define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
309 #define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
310 #define OBD_FAIL_OST_PAUSE_CREATE        0x223
311 #define OBD_FAIL_OST_BRW_PAUSE_PACK      0x224
312 #define OBD_FAIL_OST_CONNECT_NET2        0x225
313 #define OBD_FAIL_OST_NOMEM               0x226
314 #define OBD_FAIL_OST_BRW_PAUSE_BULK2     0x227
315 #define OBD_FAIL_OST_MAPBLK_ENOSPC       0x228
316 #define OBD_FAIL_OST_ENOINO              0x229
317 #define OBD_FAIL_OST_DQACQ_NET           0x230
318 #define OBD_FAIL_OST_STATFS_EINPROGRESS  0x231
319 #define OBD_FAIL_OST_SET_INFO_NET        0x232
320 #define OBD_FAIL_OST_NODESTROY           0x233
321
322 #define OBD_FAIL_LDLM                    0x300
323 #define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
324 #define OBD_FAIL_LDLM_ENQUEUE_NET                       0x302
325 #define OBD_FAIL_LDLM_CONVERT_NET                       0x303
326 #define OBD_FAIL_LDLM_CANCEL_NET                        0x304
327 #define OBD_FAIL_LDLM_BL_CALLBACK_NET                   0x305
328 #define OBD_FAIL_LDLM_CP_CALLBACK_NET                   0x306
329 #define OBD_FAIL_LDLM_GL_CALLBACK_NET                   0x307
330 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
331 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
332 #define OBD_FAIL_LDLM_CREATE_RESOURCE    0x30a
333 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED    0x30b
334 #define OBD_FAIL_LDLM_REPLY              0x30c
335 #define OBD_FAIL_LDLM_RECOV_CLIENTS      0x30d
336 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
337 #define OBD_FAIL_LDLM_GLIMPSE            0x30f
338 #define OBD_FAIL_LDLM_CANCEL_RACE        0x310
339 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE  0x311
340 #define OBD_FAIL_LDLM_PAUSE_CANCEL       0x312
341 #define OBD_FAIL_LDLM_CLOSE_THREAD       0x313
342 #define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE  0x314
343 #define OBD_FAIL_LDLM_CP_CB_WAIT         0x315
344 #define OBD_FAIL_LDLM_OST_FAIL_RACE      0x316
345 #define OBD_FAIL_LDLM_INTR_CP_AST        0x317
346 #define OBD_FAIL_LDLM_CP_BL_RACE         0x318
347 #define OBD_FAIL_LDLM_NEW_LOCK           0x319
348 #define OBD_FAIL_LDLM_AGL_DELAY          0x31a
349 #define OBD_FAIL_LDLM_AGL_NOLOCK         0x31b
350 #define OBD_FAIL_LDLM_OST_LVB            0x31c
351 #define OBD_FAIL_LDLM_ENQUEUE_HANG       0x31d
352 #define OBD_FAIL_LDLM_PAUSE_CANCEL2      0x31f
353 #define OBD_FAIL_LDLM_CP_CB_WAIT2        0x320
354 #define OBD_FAIL_LDLM_CP_CB_WAIT3        0x321
355 #define OBD_FAIL_LDLM_CP_CB_WAIT4        0x322
356 #define OBD_FAIL_LDLM_CP_CB_WAIT5        0x323
357
358 #define OBD_FAIL_LDLM_SRV_BL_AST         0x324
359 #define OBD_FAIL_LDLM_SRV_CP_AST         0x325
360 #define OBD_FAIL_LDLM_SRV_GL_AST         0x326
361
362 /* LOCKLESS IO */
363 #define OBD_FAIL_LDLM_SET_CONTENTION     0x385
364
365 #define OBD_FAIL_OSC                     0x400
366 #define OBD_FAIL_OSC_BRW_READ_BULK       0x401
367 #define OBD_FAIL_OSC_BRW_WRITE_BULK      0x402
368 #define OBD_FAIL_OSC_LOCK_BL_AST         0x403
369 #define OBD_FAIL_OSC_LOCK_CP_AST         0x404
370 #define OBD_FAIL_OSC_MATCH               0x405
371 #define OBD_FAIL_OSC_BRW_PREP_REQ        0x406
372 #define OBD_FAIL_OSC_SHUTDOWN            0x407
373 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE    0x408
374 #define OBD_FAIL_OSC_CHECKSUM_SEND       0x409
375 #define OBD_FAIL_OSC_BRW_PREP_REQ2       0x40a
376 #define OBD_FAIL_OSC_CONNECT_CKSUM       0x40b
377 #define OBD_FAIL_OSC_CKSUM_ADLER_ONLY    0x40c
378 #define OBD_FAIL_OSC_DIO_PAUSE           0x40d
379 #define OBD_FAIL_OSC_OBJECT_CONTENTION   0x40e
380 #define OBD_FAIL_OSC_CP_CANCEL_RACE      0x40f
381 #define OBD_FAIL_OSC_CP_ENQ_RACE         0x410
382 #define OBD_FAIL_OSC_NO_GRANT            0x411
383 #define OBD_FAIL_OSC_DELAY_SETTIME       0x412
384
385 #define OBD_FAIL_PTLRPC                  0x500
386 #define OBD_FAIL_PTLRPC_ACK              0x501
387 #define OBD_FAIL_PTLRPC_RQBD             0x502
388 #define OBD_FAIL_PTLRPC_BULK_GET_NET     0x503
389 #define OBD_FAIL_PTLRPC_BULK_PUT_NET     0x504
390 #define OBD_FAIL_PTLRPC_DROP_RPC         0x505
391 #define OBD_FAIL_PTLRPC_DELAY_SEND       0x506
392 #define OBD_FAIL_PTLRPC_DELAY_RECOV      0x507
393 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB   0x508
394 #define OBD_FAIL_PTLRPC_PAUSE_REQ        0x50a
395 #define OBD_FAIL_PTLRPC_PAUSE_REP        0x50c
396 #define OBD_FAIL_PTLRPC_IMP_DEACTIVE     0x50d
397 #define OBD_FAIL_PTLRPC_DUMP_LOG         0x50e
398 #define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
399 #define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
400 #define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT    0x511
401 #define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT  0x512
402 #define OBD_FAIL_PTLRPC_DROP_REQ_OPC     0x513
403 #define OBD_FAIL_PTLRPC_FINISH_REPLAY    0x514
404 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB2  0x515
405 #define OBD_FAIL_PTLRPC_DELAY_IMP_FULL   0x516
406 #define OBD_FAIL_PTLRPC_CANCEL_RESEND    0x517
407 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB3  0x520
408
409 #define OBD_FAIL_OBD_PING_NET            0x600
410 #define OBD_FAIL_OBD_LOG_CANCEL_NET      0x601
411 #define OBD_FAIL_OBD_LOGD_NET            0x602
412 /*      OBD_FAIL_OBD_QC_CALLBACK_NET     0x603 obsolete since 2.4 */
413 #define OBD_FAIL_OBD_DQACQ               0x604
414 #define OBD_FAIL_OBD_LLOG_SETUP          0x605
415 #define OBD_FAIL_OBD_LOG_CANCEL_REP      0x606
416 #define OBD_FAIL_OBD_IDX_READ_NET        0x607
417 #define OBD_FAIL_OBD_IDX_READ_BREAK      0x608
418 #define OBD_FAIL_OBD_NO_LRU              0x609
419
420 #define OBD_FAIL_TGT_REPLY_NET           0x700
421 #define OBD_FAIL_TGT_CONN_RACE           0x701
422 #define OBD_FAIL_TGT_FORCE_RECONNECT     0x702
423 #define OBD_FAIL_TGT_DELAY_CONNECT       0x703
424 #define OBD_FAIL_TGT_DELAY_RECONNECT     0x704
425 #define OBD_FAIL_TGT_DELAY_PRECREATE     0x705
426 #define OBD_FAIL_TGT_TOOMANY_THREADS     0x706
427 #define OBD_FAIL_TGT_REPLAY_DROP         0x707
428 #define OBD_FAIL_TGT_FAKE_EXP            0x708
429 #define OBD_FAIL_TGT_REPLAY_DELAY        0x709
430 /* #define OBD_FAIL_TGT_LAST_REPLAY         0x710 (obsoleted) */
431 #define OBD_FAIL_TGT_CLIENT_ADD          0x711
432 #define OBD_FAIL_TGT_RCVG_FLAG           0x712
433 #define OBD_FAIL_TGT_DELAY_CONDITIONAL   0x713
434 #define OBD_FAIL_TGT_REPLAY_DELAY2       0x714
435 #define OBD_FAIL_TGT_REPLAY_RECONNECT    0x715
436
437 #define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
438 #define OBD_FAIL_MDC_ENQUEUE_PAUSE       0x801
439 #define OBD_FAIL_MDC_OLD_EXT_FLAGS       0x802
440 #define OBD_FAIL_MDC_GETATTR_ENQUEUE     0x803
441 #define OBD_FAIL_MDC_RPCS_SEM            0x804
442 #define OBD_FAIL_MDC_LIGHTWEIGHT         0x805
443
444 #define OBD_FAIL_MGS                     0x900
445 #define OBD_FAIL_MGS_ALL_REQUEST_NET     0x901
446 #define OBD_FAIL_MGS_ALL_REPLY_NET       0x902
447 #define OBD_FAIL_MGC_PAUSE_PROCESS_LOG   0x903
448 #define OBD_FAIL_MGS_PAUSE_REQ           0x904
449 #define OBD_FAIL_MGS_PAUSE_TARGET_REG    0x905
450 #define OBD_FAIL_MGS_CONNECT_NET         0x906
451 #define OBD_FAIL_MGS_DISCONNECT_NET      0x907
452 #define OBD_FAIL_MGS_SET_INFO_NET        0x908
453 #define OBD_FAIL_MGS_EXCEPTION_NET       0x909
454 #define OBD_FAIL_MGS_TARGET_REG_NET      0x90a
455 #define OBD_FAIL_MGS_TARGET_DEL_NET      0x90b
456 #define OBD_FAIL_MGS_CONFIG_READ_NET     0x90c
457 #define OBD_FAIL_MGS_LDLM_REPLY_NET      0x90d
458
459 #define OBD_FAIL_QUOTA_DQACQ_NET                        0xA01
460 #define OBD_FAIL_QUOTA_EDQUOT            0xA02
461 #define OBD_FAIL_QUOTA_DELAY_REINT       0xA03
462 #define OBD_FAIL_QUOTA_RECOVERABLE_ERR   0xA04
463
464 #define OBD_FAIL_LPROC_REMOVE            0xB00
465
466 #define OBD_FAIL_GENERAL_ALLOC           0xC00
467
468 #define OBD_FAIL_SEQ                     0x1000
469 #define OBD_FAIL_SEQ_QUERY_NET           0x1001
470 #define OBD_FAIL_SEQ_EXHAUST             0x1002
471
472 #define OBD_FAIL_FLD                     0x1100
473 #define OBD_FAIL_FLD_QUERY_NET           0x1101
474 #define OBD_FAIL_FLD_READ_NET            0x1102
475
476 #define OBD_FAIL_SEC_CTX                 0x1200
477 #define OBD_FAIL_SEC_CTX_INIT_NET        0x1201
478 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET   0x1202
479 #define OBD_FAIL_SEC_CTX_FINI_NET        0x1203
480 #define OBD_FAIL_SEC_CTX_HDL_PAUSE       0x1204
481
482 #define OBD_FAIL_LLOG                               0x1300
483 #define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET            0x1301
484 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET      0x1302
485 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303
486 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
487 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET  0x1305
488 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET  0x1306
489 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307
490 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308
491 #define OBD_FAIL_LLOG_CATINFO_NET                   0x1309
492 #define OBD_FAIL_MDS_SYNC_CAPA_SL                   0x1310
493 #define OBD_FAIL_SEQ_ALLOC                          0x1311
494
495 #define OBD_FAIL_LLITE                              0x1400
496 #define OBD_FAIL_LLITE_FAULT_TRUNC_RACE             0x1401
497 #define OBD_FAIL_LOCK_STATE_WAIT_INTR               0x1402
498 #define OBD_FAIL_LOV_INIT                           0x1403
499 #define OBD_FAIL_GLIMPSE_DELAY                      0x1404
500 #define OBD_FAIL_LLITE_XATTR_ENOMEM                 0x1405
501 #define OBD_FAIL_MAKE_LOVEA_HOLE                    0x1406
502 #define OBD_FAIL_LLITE_LOST_LAYOUT                  0x1407
503
504 #define OBD_FAIL_FID_INDIR      0x1501
505 #define OBD_FAIL_FID_INLMA      0x1502
506 #define OBD_FAIL_FID_IGIF       0x1504
507 #define OBD_FAIL_FID_LOOKUP     0x1505
508 #define OBD_FAIL_FID_NOLMA      0x1506
509
510 /* LFSCK */
511 #define OBD_FAIL_LFSCK_DELAY1           0x1600
512 #define OBD_FAIL_LFSCK_DELAY2           0x1601
513 #define OBD_FAIL_LFSCK_DELAY3           0x1602
514 #define OBD_FAIL_LFSCK_LINKEA_CRASH     0x1603
515 #define OBD_FAIL_LFSCK_LINKEA_MORE      0x1604
516 #define OBD_FAIL_LFSCK_LINKEA_MORE2     0x1605
517 #define OBD_FAIL_LFSCK_FATAL1           0x1608
518 #define OBD_FAIL_LFSCK_FATAL2           0x1609
519 #define OBD_FAIL_LFSCK_CRASH            0x160a
520 #define OBD_FAIL_LFSCK_NO_AUTO          0x160b
521 #define OBD_FAIL_LFSCK_NO_DOUBLESCAN    0x160c
522 #define OBD_FAIL_LFSCK_SKIP_LASTID      0x160d
523 #define OBD_FAIL_LFSCK_DELAY4           0x160e
524 #define OBD_FAIL_LFSCK_BAD_LMMOI        0x160f
525 #define OBD_FAIL_LFSCK_DANGLING         0x1610
526 #define OBD_FAIL_LFSCK_UNMATCHED_PAIR1  0x1611
527 #define OBD_FAIL_LFSCK_UNMATCHED_PAIR2  0x1612
528 #define OBD_FAIL_LFSCK_BAD_OWNER        0x1613
529 #define OBD_FAIL_LFSCK_MULTIPLE_REF     0x1614
530 #define OBD_FAIL_LFSCK_LOST_STRIPE      0x1615
531 #define OBD_FAIL_LFSCK_LOST_MDTOBJ      0x1616
532 #define OBD_FAIL_LFSCK_NOPFID           0x1617
533 #define OBD_FAIL_LFSCK_CHANGE_STRIPE    0x1618
534 #define OBD_FAIL_LFSCK_INVALID_PFID     0x1619
535 #define OBD_FAIL_LFSCK_LOST_SPEOBJ      0x161a
536 #define OBD_FAIL_LFSCK_DELAY5           0x161b
537 #define OBD_FAIL_LFSCK_BAD_NETWORK      0x161c
538 #define OBD_FAIL_LFSCK_NO_LINKEA        0x161d
539 #define OBD_FAIL_LFSCK_BAD_PARENT       0x161e
540 #define OBD_FAIL_LFSCK_DANGLING2        0x1620
541 #define OBD_FAIL_LFSCK_DANGLING3        0x1621
542 #define OBD_FAIL_LFSCK_MUL_REF          0x1622
543 #define OBD_FAIL_LFSCK_BAD_TYPE         0x1623
544 #define OBD_FAIL_LFSCK_NO_NAMEENTRY     0x1624
545 #define OBD_FAIL_LFSCK_MORE_NLINK       0x1625
546 #define OBD_FAIL_LFSCK_LESS_NLINK       0x1626
547 #define OBD_FAIL_LFSCK_LINKEA_OVERFLOW  0x1627
548 #define OBD_FAIL_LFSCK_BAD_NAME_HASH    0x1628
549 #define OBD_FAIL_LFSCK_LOST_MASTER_LMV  0x1629
550 #define OBD_FAIL_LFSCK_LOST_SLAVE_LMV   0x162a
551 #define OBD_FAIL_LFSCK_BAD_SLAVE_LMV    0x162b
552 #define OBD_FAIL_LFSCK_BAD_SLAVE_NAME   0x162c
553
554 #define OBD_FAIL_LFSCK_NOTIFY_NET       0x16f0
555 #define OBD_FAIL_LFSCK_QUERY_NET        0x16f1
556
557 /* UPDATE */
558 #define OBD_FAIL_OUT_UPDATE_NET         0x1700
559 #define OBD_FAIL_OUT_UPDATE_NET_REP     0x1701
560
561 /* MIGRATE */
562 #define OBD_FAIL_MIGRATE_NET_REP                0x1800
563 #define OBD_FAIL_MIGRATE_ENTRIES                0x1801
564 #define OBD_FAIL_MIGRATE_LINKEA                 0x1802
565 #define OBD_FAIL_MIGRATE_DELAY                  0x1803
566
567 /* LMV */
568 #define OBD_FAIL_UNKNOWN_LMV_STRIPE             0x1901
569
570 /* DT */
571 #define OBD_FAIL_DT_DECLARE_ATTR_GET            0x2000
572 #define OBD_FAIL_DT_ATTR_GET                    0x2001
573 #define OBD_FAIL_DT_DECLARE_ATTR_SET            0x2002
574 #define OBD_FAIL_DT_ATTR_SET                    0x2003
575 #define OBD_FAIL_DT_DECLARE_XATTR_GET           0x2004
576 #define OBD_FAIL_DT_XATTR_GET                   0x2005
577 #define OBD_FAIL_DT_DECLARE_XATTR_SET           0x2006
578 #define OBD_FAIL_DT_XATTR_SET                   0x2007
579 #define OBD_FAIL_DT_DECLARE_XATTR_DEL           0x2008
580 #define OBD_FAIL_DT_XATTR_DEL                   0x2009
581 #define OBD_FAIL_DT_XATTR_LIST                  0x200a
582 #define OBD_FAIL_DT_DECLARE_CREATE              0x200b
583 #define OBD_FAIL_DT_CREATE                      0x200c
584 #define OBD_FAIL_DT_DECLARE_DESTROY             0x200d
585 #define OBD_FAIL_DT_DESTROY                     0x200e
586 #define OBD_FAIL_DT_INDEX_TRY                   0x200f
587 #define OBD_FAIL_DT_DECLARE_REF_ADD             0x2010
588 #define OBD_FAIL_DT_REF_ADD                     0x2011
589 #define OBD_FAIL_DT_DECLARE_REF_DEL             0x2012
590 #define OBD_FAIL_DT_REF_DEL                     0x2013
591 #define OBD_FAIL_DT_DECLARE_INSERT              0x2014
592 #define OBD_FAIL_DT_INSERT                      0x2015
593 #define OBD_FAIL_DT_DECLARE_DELETE              0x2016
594 #define OBD_FAIL_DT_DELETE                      0x2017
595 #define OBD_FAIL_DT_LOOKUP                      0x2018
596
597 /* Assign references to moved code to reduce code changes */
598 #define OBD_FAIL_PRECHECK(id)                   CFS_FAIL_PRECHECK(id)
599 #define OBD_FAIL_CHECK(id)                      CFS_FAIL_CHECK(id)
600 #define OBD_FAIL_CHECK_VALUE(id, value)         CFS_FAIL_CHECK_VALUE(id, value)
601 #define OBD_FAIL_CHECK_ORSET(id, value)         CFS_FAIL_CHECK_ORSET(id, value)
602 #define OBD_FAIL_CHECK_RESET(id, value)         CFS_FAIL_CHECK_RESET(id, value)
603 #define OBD_FAIL_RETURN(id, ret)                CFS_FAIL_RETURN(id, ret)
604 #define OBD_FAIL_TIMEOUT(id, secs)              CFS_FAIL_TIMEOUT(id, secs)
605 #define OBD_FAIL_TIMEOUT_MS(id, ms)             CFS_FAIL_TIMEOUT_MS(id, ms)
606 #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) CFS_FAIL_TIMEOUT_ORSET(id, value, secs)
607 #define OBD_RACE(id)                            CFS_RACE(id)
608 #define OBD_FAIL_ONCE                           CFS_FAIL_ONCE
609 #define OBD_FAILED                              CFS_FAILED
610
611 #define LUT_FAIL_CLASS(fail_id)                 (((fail_id) >> 8) << 16)
612 #define LUT_FAIL_MGT                            LUT_FAIL_CLASS(OBD_FAIL_MGS)
613 #define LUT_FAIL_MDT                            LUT_FAIL_CLASS(OBD_FAIL_MDS)
614 #define LUT_FAIL_OST                            LUT_FAIL_CLASS(OBD_FAIL_OST)
615
616 extern atomic_t libcfs_kmemory;
617
618 #ifdef CONFIG_PROC_FS
619 #define obd_memory_add(size)                                                  \
620         lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
621 #define obd_memory_sub(size)                                                  \
622         lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
623 #define obd_memory_sum()                                                      \
624         lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT,                  \
625                                 LPROCFS_FIELDS_FLAGS_SUM)
626 #define obd_pages_add(order)                                                  \
627         lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT,                \
628                             (long)(1 << (order)))
629 #define obd_pages_sub(order)                                                  \
630         lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT,                \
631                             (long)(1 << (order)))
632 #define obd_pages_sum()                                                       \
633         lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT,            \
634                                 LPROCFS_FIELDS_FLAGS_SUM)
635
636 extern void obd_update_maxusage(void);
637 extern __u64 obd_memory_max(void);
638 extern __u64 obd_pages_max(void);
639
640 #else /* CONFIG_PROC_FS */
641
642 extern __u64 obd_alloc;
643 extern __u64 obd_pages;
644
645 extern __u64 obd_max_alloc;
646 extern __u64 obd_max_pages;
647
648 static inline void obd_memory_add(long size)
649 {
650         obd_alloc += size;
651         if (obd_alloc > obd_max_alloc)
652                 obd_max_alloc = obd_alloc;
653 }
654
655 static inline void obd_memory_sub(long size)
656 {
657         obd_alloc -= size;
658 }
659
660 static inline void obd_pages_add(int order)
661 {
662         obd_pages += 1<< order;
663         if (obd_pages > obd_max_pages)
664                 obd_max_pages = obd_pages;
665 }
666
667 static inline void obd_pages_sub(int order)
668 {
669         obd_pages -= 1<< order;
670 }
671
672 #define obd_memory_sum() (obd_alloc)
673 #define obd_pages_sum()  (obd_pages)
674
675 #define obd_memory_max() (obd_max_alloc)
676 #define obd_pages_max() (obd_max_pages)
677
678 #endif /* !CONFIG_PROC_FS */
679
680 #define OBD_DEBUG_MEMUSAGE (1)
681
682 #if OBD_DEBUG_MEMUSAGE
683 #define OBD_ALLOC_POST(ptr, size, name)                                 \
684                 obd_memory_add(size);                                   \
685                 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",       \
686                        (int)(size), ptr)
687
688 #define OBD_FREE_PRE(ptr, size, name)                                   \
689         LASSERT(ptr);                                                   \
690         obd_memory_sub(size);                                           \
691         CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",               \
692                (int)(size), ptr);                                       \
693         POISON(ptr, 0x5a, size)
694
695 #else /* !OBD_DEBUG_MEMUSAGE */
696
697 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
698 #define OBD_FREE_PRE(ptr, size, name)   ((void)0)
699
700 #endif /* !OBD_DEBUG_MEMUSAGE */
701
702 #ifdef RANDOM_FAIL_ALLOC
703 #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
704 #else
705 #define HAS_FAIL_ALLOC_FLAG 0
706 #endif
707
708 #define OBD_ALLOC_FAIL_BITS 24
709 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
710 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
711
712 #define OBD_FREE_RTN0(ptr)                                                    \
713 ({                                                                            \
714         kfree(ptr);                                                        \
715         (ptr) = NULL;                                                         \
716         0;                                                                    \
717 })
718
719 #define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)                    \
720 do {                                                                          \
721         (ptr) = (cptab) == NULL ?                                             \
722                 kmalloc(size, flags | __GFP_ZERO) :                           \
723                 cfs_cpt_malloc(cptab, cpt, size, flags | __GFP_ZERO);         \
724         if (likely((ptr) != NULL &&                                           \
725                    (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
726                     !obd_alloc_fail(ptr, #ptr, "km", size,                    \
727                                     __FILE__, __LINE__) ||                    \
728                     OBD_FREE_RTN0(ptr)))){                                    \
729                 OBD_ALLOC_POST(ptr, size, "kmalloced");                       \
730         }                                                                     \
731 } while (0)
732
733 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                    \
734         __OBD_MALLOC_VERBOSE(ptr, NULL, 0, size, gfp_mask)
735
736 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_NOFS)
737 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
738 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
739 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
740
741 #define OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, gfp_mask)                    \
742         __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, gfp_mask)
743
744 #define OBD_CPT_ALLOC(ptr, cptab, cpt, size)                                  \
745         OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS)
746
747 #define OBD_CPT_ALLOC_PTR(ptr, cptab, cpt)                                    \
748         OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof *(ptr))
749
750 /* Direct use of __vmalloc() allows for protection flag specification
751  * (and particularly to not set __GFP_FS, which is likely to cause some
752  * deadlock situations in our code).
753  */
754 #define __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)                          \
755 do {                                                                          \
756         (ptr) = cptab == NULL ?                                               \
757                 __vmalloc(size, GFP_NOFS | __GFP_HIGHMEM | __GFP_ZERO,        \
758                           PAGE_KERNEL) :                                      \
759                 cfs_cpt_vzalloc(cptab, cpt, size);                            \
760         if (unlikely((ptr) == NULL)) {                                        \
761                 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",           \
762                        (int)(size));                                          \
763                 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
764                        obd_memory_sum(), atomic_read(&libcfs_kmemory));       \
765         } else {                                                              \
766                 OBD_ALLOC_POST(ptr, size, "vmalloced");                       \
767         }                                                                     \
768 } while(0)
769
770 #define OBD_VMALLOC(ptr, size)                                                \
771          __OBD_VMALLOC_VERBOSE(ptr, NULL, 0, size)
772 #define OBD_CPT_VMALLOC(ptr, cptab, cpt, size)                                \
773          __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)
774
775 /* Allocations above this size are considered too big and could not be done
776  * atomically.
777  *
778  * Be very careful when changing this value, especially when decreasing it,
779  * since vmalloc in Linux doesn't perform well on multi-cores system, calling
780  * vmalloc in critical path would hurt performance badly. See LU-66.
781  */
782 #define OBD_ALLOC_BIG (4 * PAGE_CACHE_SIZE)
783
784 #define OBD_ALLOC_LARGE(ptr, size)                                            \
785 do {                                                                          \
786         if (size > OBD_ALLOC_BIG)                                             \
787                 OBD_VMALLOC(ptr, size);                                       \
788         else                                                                  \
789                 OBD_ALLOC(ptr, size);                                         \
790 } while (0)
791
792 #define OBD_CPT_ALLOC_LARGE(ptr, cptab, cpt, size)                            \
793 do {                                                                          \
794         if (size > OBD_ALLOC_BIG)                                             \
795                 OBD_CPT_VMALLOC(ptr, cptab, cpt, size);                       \
796         else                                                                  \
797                 OBD_CPT_ALLOC(ptr, cptab, cpt, size);                         \
798 } while (0)
799
800 #define OBD_FREE_LARGE(ptr, size)                                             \
801 do {                                                                          \
802         if (size > OBD_ALLOC_BIG)                                             \
803                 OBD_VFREE(ptr, size);                                         \
804         else                                                                  \
805                 OBD_FREE(ptr, size);                                          \
806 } while (0)
807
808 #ifdef CONFIG_DEBUG_SLAB
809 #define POISON(ptr, c, s) do {} while (0)
810 #define POISON_PTR(ptr)  ((void)0)
811 #else
812 #define POISON(ptr, c, s) memset(ptr, c, s)
813 #define POISON_PTR(ptr)  (ptr) = (void *)0xdeadbeef
814 #endif
815
816 #ifdef POISON_BULK
817 #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_CACHE_SIZE);   \
818                                     kunmap(page); } while (0)
819 #else
820 #define POISON_PAGE(page, val) do { } while (0)
821 #endif
822
823 #define OBD_FREE(ptr, size)                                                   \
824 do {                                                                          \
825         OBD_FREE_PRE(ptr, size, "kfreed");                                    \
826         kfree(ptr);                                                        \
827         POISON_PTR(ptr);                                                      \
828 } while(0)
829
830
831 #define OBD_FREE_RCU(ptr, size, handle)                                       \
832 do {                                                                          \
833         struct portals_handle *__h = (handle);                                \
834                                                                               \
835         LASSERT(handle != NULL);                                              \
836         __h->h_cookie = (unsigned long)(ptr);                                 \
837         __h->h_size = (size);                                                 \
838         call_rcu(&__h->h_rcu, class_handle_free_cb);                          \
839         POISON_PTR(ptr);                                                      \
840 } while(0)
841
842 #define OBD_VFREE(ptr, size)                            \
843         do {                                            \
844                 OBD_FREE_PRE(ptr, size, "vfreed");      \
845                 vfree(ptr);                     \
846                 POISON_PTR(ptr);                        \
847         } while (0)
848
849 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
850  * HAVE A CTOR THAT DOES ANYTHING.  its work will be cleared here.  we'd
851  * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
852 #define OBD_SLAB_FREE_RTN0(ptr, slab)                                         \
853 ({                                                                            \
854         kmem_cache_free((slab), (ptr));                                    \
855         (ptr) = NULL;                                                         \
856         0;                                                                    \
857 })
858
859 #define __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, type)           \
860 do {                                                                          \
861         LASSERT(ergo((type) != GFP_ATOMIC, !in_interrupt()));         \
862         (ptr) = (cptab) == NULL ?                                             \
863                 kmem_cache_alloc(slab, type | __GFP_ZERO) :                   \
864                 cfs_mem_cache_cpt_alloc(slab, cptab, cpt, type | __GFP_ZERO); \
865         if (likely((ptr) != NULL &&                                           \
866                    (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
867                     !obd_alloc_fail(ptr, #ptr, "slab-", size,                 \
868                                     __FILE__, __LINE__) ||                    \
869                     OBD_SLAB_FREE_RTN0(ptr, slab)))) {                        \
870                 OBD_ALLOC_POST(ptr, size, "slab-alloced");                    \
871         }                                                                     \
872 } while(0)
873
874 #define OBD_SLAB_ALLOC_GFP(ptr, slab, size, flags)                            \
875         __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, NULL, 0, size, flags)
876 #define OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, flags)            \
877         __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, flags)
878
879 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
880
881 #define OBD_SLAB_FREE(ptr, slab, size)                                        \
882 do {                                                                          \
883         OBD_FREE_PRE(ptr, size, "slab-freed");                                \
884         kmem_cache_free(slab, ptr);                                        \
885         POISON_PTR(ptr);                                                      \
886 } while(0)
887
888 #define OBD_SLAB_ALLOC(ptr, slab, size)                                       \
889         OBD_SLAB_ALLOC_GFP(ptr, slab, size, GFP_NOFS)
890
891 #define OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, size)                       \
892         OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, GFP_NOFS)
893
894 #define OBD_SLAB_ALLOC_PTR(ptr, slab)                                         \
895         OBD_SLAB_ALLOC(ptr, slab, sizeof *(ptr))
896
897 #define OBD_SLAB_CPT_ALLOC_PTR(ptr, slab, cptab, cpt)                         \
898         OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, sizeof *(ptr))
899
900 #define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, flags)                              \
901         OBD_SLAB_ALLOC_GFP(ptr, slab, sizeof *(ptr), flags)
902
903 #define OBD_SLAB_CPT_ALLOC_PTR_GFP(ptr, slab, cptab, cpt, flags)                      \
904         OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, sizeof *(ptr), flags)
905
906 #define OBD_SLAB_FREE_PTR(ptr, slab)                                          \
907         OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
908
909 #define KEY_IS(str) \
910         (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
911
912 /* Wrapper for contiguous page frame allocation */
913 #define __OBD_PAGE_ALLOC_VERBOSE(ptr, cptab, cpt, gfp_mask)                   \
914 do {                                                                          \
915         (ptr) = (cptab) == NULL ?                                             \
916                 alloc_page(gfp_mask) :                                \
917                 cfs_page_cpt_alloc(cptab, cpt, gfp_mask);                     \
918         if (unlikely((ptr) == NULL)) {                                        \
919                 CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
920                        "failed\n", (int)1,                                    \
921                        (__u64)(1 << PAGE_CACHE_SHIFT));                         \
922                 CERROR(LPU64" total bytes and "LPU64" total pages "           \
923                        "("LPU64" bytes) allocated by Lustre, "                \
924                        "%d total bytes by LNET\n",                            \
925                        obd_memory_sum(),                                      \
926                        obd_pages_sum() << PAGE_CACHE_SHIFT,                   \
927                        obd_pages_sum(),                                       \
928                        atomic_read(&libcfs_kmemory));                         \
929         } else {                                                              \
930                 obd_pages_add(0);                                             \
931                 CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / "      \
932                        LPU64" bytes at %p.\n",                                \
933                        (int)1,                                                \
934                        (__u64)(1 << PAGE_CACHE_SHIFT), ptr);                    \
935         }                                                                     \
936 } while (0)
937
938 #define OBD_PAGE_ALLOC(ptr, gfp_mask)                                         \
939         __OBD_PAGE_ALLOC_VERBOSE(ptr, NULL, 0, gfp_mask)
940 #define OBD_PAGE_CPT_ALLOC(ptr, cptab, cpt, gfp_mask)                         \
941         __OBD_PAGE_ALLOC_VERBOSE(ptr, cptab, cpt, gfp_mask)
942
943 #define OBD_PAGE_FREE(ptr)                                                    \
944 do {                                                                          \
945         LASSERT(ptr);                                                         \
946         obd_pages_sub(0);                                                     \
947         CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
948                "at %p.\n",                                                    \
949                (int)1, (__u64)(1 << PAGE_CACHE_SHIFT),                          \
950                ptr);                                                          \
951         __free_page(ptr);                                                   \
952         (ptr) = (void *)0xdeadbeef;                                           \
953 } while (0)
954
955 #endif