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LU-4971 ldlm: drop redundant ibits lock interoperability check
[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, 2013, 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 #include <libcfs/libcfs.h>
41 #include <lprocfs_status.h>
42
43 #if defined(__linux__)
44 #include <linux/obd_support.h>
45 #elif defined(__APPLE__)
46 #include <darwin/obd_support.h>
47 #elif defined(__WINNT__)
48 #include <winnt/obd_support.h>
49 #else
50 #error Unsupported operating system.
51 #endif
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 at_min;
71 extern unsigned int at_max;
72 extern unsigned int at_history;
73 extern int at_early_margin;
74 extern int at_extra;
75 extern unsigned int obd_max_dirty_pages;
76 extern atomic_t obd_dirty_pages;
77 extern atomic_t obd_dirty_transit_pages;
78 extern unsigned int obd_alloc_fail_rate;
79 extern char obd_jobid_var[];
80
81 /* lvfs.c */
82 int obd_alloc_fail(const void *ptr, const char *name, const char *type,
83                    size_t size, const char *file, int line);
84
85 /* Some hash init argument constants */
86 #define HASH_POOLS_BKT_BITS 3
87 #define HASH_POOLS_CUR_BITS 3
88 #define HASH_POOLS_MAX_BITS 7
89 #define HASH_UUID_BKT_BITS 5
90 #define HASH_UUID_CUR_BITS 7
91 #define HASH_UUID_MAX_BITS 12
92 #define HASH_NID_BKT_BITS 5
93 #define HASH_NID_CUR_BITS 7
94 #define HASH_NID_MAX_BITS 12
95 #define HASH_NID_STATS_BKT_BITS 5
96 #define HASH_NID_STATS_CUR_BITS 7
97 #define HASH_NID_STATS_MAX_BITS 12
98 #define HASH_LQE_BKT_BITS 5
99 #define HASH_LQE_CUR_BITS 7
100 #define HASH_LQE_MAX_BITS 12
101 #define HASH_CONN_BKT_BITS 5
102 #define HASH_CONN_CUR_BITS 5
103 #define HASH_CONN_MAX_BITS 15
104 #define HASH_EXP_LOCK_BKT_BITS  5
105 #define HASH_EXP_LOCK_CUR_BITS  7
106 #define HASH_EXP_LOCK_MAX_BITS  16
107 #define HASH_CL_ENV_BKT_BITS    5
108 #define HASH_CL_ENV_BITS        10
109 #define HASH_JOB_STATS_BKT_BITS 5
110 #define HASH_JOB_STATS_CUR_BITS 7
111 #define HASH_JOB_STATS_MAX_BITS 12
112
113 /* Timeout definitions */
114 #define OBD_TIMEOUT_DEFAULT             100
115 #define LDLM_TIMEOUT_DEFAULT            20
116 #define MDS_LDLM_TIMEOUT_DEFAULT        6
117 /* Time to wait for all clients to reconnect during recovery (hard limit) */
118 #define OBD_RECOVERY_TIME_HARD          (obd_timeout * 9)
119 /* Time to wait for all clients to reconnect during recovery (soft limit) */
120 /* Should be very conservative; must catch the first reconnect after reboot */
121 #define OBD_RECOVERY_TIME_SOFT          (obd_timeout * 3)
122 /* Change recovery-small 26b time if you change this */
123 #define PING_INTERVAL max(obd_timeout / 4, 1U)
124 /* a bit more than maximal journal commit time in seconds */
125 #define PING_INTERVAL_SHORT min(PING_INTERVAL, 7U)
126 /* Client may skip 1 ping; we must wait at least 2.5. But for multiple
127  * failover targets the client only pings one server at a time, and pings
128  * can be lost on a loaded network. Since eviction has serious consequences,
129  * and there's no urgent need to evict a client just because it's idle, we
130  * should be very conservative here. */
131 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
132 #define DISK_TIMEOUT 50          /* Beyond this we warn about disk speed */
133 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
134  /* Max connect interval for nonresponsive servers; ~50s to avoid building up
135     connect requests in the LND queues, but within obd_timeout so we don't
136     miss the recovery window */
137 #define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN,obd_timeout))
138 #define CONNECTION_SWITCH_INC 5  /* Connection timeout backoff */
139 /* In general this should be low to have quick detection of a system
140    running on a backup server. (If it's too low, import_select_connection
141    will increase the timeout anyhow.)  */
142 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
143 /* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
144 #define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
145                              INITIAL_CONNECT_TIMEOUT)
146 /* The min time a target should wait for clients to reconnect in recovery */
147 #define OBD_RECOVERY_TIME_MIN    (2*RECONNECT_DELAY_MAX)
148 #define OBD_IR_FACTOR_MIN         1
149 #define OBD_IR_FACTOR_MAX         10
150 #define OBD_IR_FACTOR_DEFAULT    (OBD_IR_FACTOR_MAX/2)
151 /* default timeout for the MGS to become IR_FULL */
152 #define OBD_IR_MGS_TIMEOUT       (4*obd_timeout)
153 #define LONG_UNLINK 300          /* Unlink should happen before now */
154
155 /**
156  * Time interval of shrink, if the client is "idle" more than this interval,
157  * then the ll_grant thread will return the requested grant space to filter
158  */
159 #define GRANT_SHRINK_INTERVAL            1200/*20 minutes*/
160
161 #define OBD_FAIL_MDS                     0x100
162 #define OBD_FAIL_MDS_HANDLE_UNPACK       0x101
163 #define OBD_FAIL_MDS_GETATTR_NET         0x102
164 #define OBD_FAIL_MDS_GETATTR_PACK        0x103
165 #define OBD_FAIL_MDS_READPAGE_NET        0x104
166 #define OBD_FAIL_MDS_READPAGE_PACK       0x105
167 #define OBD_FAIL_MDS_SENDPAGE            0x106
168 #define OBD_FAIL_MDS_REINT_NET           0x107
169 #define OBD_FAIL_MDS_REINT_UNPACK        0x108
170 #define OBD_FAIL_MDS_REINT_SETATTR       0x109
171 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
172 #define OBD_FAIL_MDS_REINT_CREATE        0x10b
173 #define OBD_FAIL_MDS_REINT_CREATE_WRITE  0x10c
174 #define OBD_FAIL_MDS_REINT_UNLINK        0x10d
175 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE  0x10e
176 #define OBD_FAIL_MDS_REINT_LINK          0x10f
177 #define OBD_FAIL_MDS_REINT_LINK_WRITE    0x110
178 #define OBD_FAIL_MDS_REINT_RENAME        0x111
179 #define OBD_FAIL_MDS_REINT_RENAME_WRITE  0x112
180 #define OBD_FAIL_MDS_OPEN_NET            0x113
181 #define OBD_FAIL_MDS_OPEN_PACK           0x114
182 #define OBD_FAIL_MDS_CLOSE_NET           0x115
183 #define OBD_FAIL_MDS_CLOSE_PACK          0x116
184 #define OBD_FAIL_MDS_CONNECT_NET         0x117
185 #define OBD_FAIL_MDS_CONNECT_PACK        0x118
186 #define OBD_FAIL_MDS_REINT_NET_REP       0x119
187 #define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
188 #define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
189 #define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
190 #define OBD_FAIL_MDS_STATFS_PACK         0x11d
191 #define OBD_FAIL_MDS_STATFS_NET          0x11e
192 #define OBD_FAIL_MDS_GETATTR_NAME_NET    0x11f
193 #define OBD_FAIL_MDS_PIN_NET             0x120
194 #define OBD_FAIL_MDS_UNPIN_NET           0x121
195 #define OBD_FAIL_MDS_ALL_REPLY_NET       0x122
196 #define OBD_FAIL_MDS_ALL_REQUEST_NET     0x123
197 #define OBD_FAIL_MDS_SYNC_NET            0x124
198 #define OBD_FAIL_MDS_SYNC_PACK           0x125
199 #define OBD_FAIL_MDS_DONE_WRITING_NET    0x126
200 #define OBD_FAIL_MDS_DONE_WRITING_PACK   0x127
201 #define OBD_FAIL_MDS_ALLOC_OBDO          0x128
202 #define OBD_FAIL_MDS_PAUSE_OPEN          0x129
203 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP    0x12a
204 #define OBD_FAIL_MDS_OPEN_CREATE         0x12b
205 #define OBD_FAIL_MDS_OST_SETATTR         0x12c
206 #define OBD_FAIL_MDS_QUOTACHECK_NET      0x12d
207 #define OBD_FAIL_MDS_QUOTACTL_NET        0x12e
208 #define OBD_FAIL_MDS_CLIENT_ADD          0x12f
209 #define OBD_FAIL_MDS_GETXATTR_NET        0x130
210 #define OBD_FAIL_MDS_GETXATTR_PACK       0x131
211 #define OBD_FAIL_MDS_SETXATTR_NET        0x132
212 #define OBD_FAIL_MDS_SETXATTR            0x133
213 #define OBD_FAIL_MDS_SETXATTR_WRITE      0x134
214 #define OBD_FAIL_MDS_FS_SETUP            0x135
215 #define OBD_FAIL_MDS_RESEND              0x136
216 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED  0x137
217 #define OBD_FAIL_MDS_LOV_SYNC_RACE       0x138
218 #define OBD_FAIL_MDS_OSC_PRECREATE       0x139
219 #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT   0x13a
220 #define OBD_FAIL_MDS_CLOSE_NET_REP       0x13b
221 #define OBD_FAIL_MDS_BLOCK_QUOTA_REQ     0x13c
222 #define OBD_FAIL_MDS_DROP_QUOTA_REQ      0x13d
223 #define OBD_FAIL_MDS_REMOVE_COMMON_EA    0x13e
224 #define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING   0x13f
225 #define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD    0x140
226 #define OBD_FAIL_MDS_LOV_PREP_CREATE     0x141
227 #define OBD_FAIL_MDS_REINT_DELAY         0x142
228 #define OBD_FAIL_MDS_READLINK_EPROTO     0x143
229 #define OBD_FAIL_MDS_OPEN_WAIT_CREATE    0x144
230 #define OBD_FAIL_MDS_PDO_LOCK            0x145
231 #define OBD_FAIL_MDS_PDO_LOCK2           0x146
232 #define OBD_FAIL_MDS_OSC_CREATE_FAIL     0x147
233 #define OBD_FAIL_MDS_NEGATIVE_POSITIVE   0x148
234 #define OBD_FAIL_MDS_HSM_STATE_GET_NET          0x149
235 #define OBD_FAIL_MDS_HSM_STATE_SET_NET          0x14a
236 #define OBD_FAIL_MDS_HSM_PROGRESS_NET           0x14b
237 #define OBD_FAIL_MDS_HSM_REQUEST_NET            0x14c
238 #define OBD_FAIL_MDS_HSM_CT_REGISTER_NET        0x14d
239 #define OBD_FAIL_MDS_HSM_CT_UNREGISTER_NET      0x14e
240 #define OBD_FAIL_MDS_SWAP_LAYOUTS_NET           0x14f
241 #define OBD_FAIL_MDS_HSM_ACTION_NET             0x150
242 #define OBD_FAIL_MDS_CHANGELOG_INIT             0x151
243 #define OBD_FAIL_MDS_HSM_SWAP_LAYOUTS           0x152
244 #define OBD_FAIL_MDS_RENAME              0x153
245 #define OBD_FAIL_MDS_RENAME2             0x154
246 #define OBD_FAIL_MDS_RENAME3             0x155
247 #define OBD_FAIL_MDS_RENAME4             0x156
248
249 /* layout lock */
250 #define OBD_FAIL_MDS_NO_LL_GETATTR       0x170
251 #define OBD_FAIL_MDS_NO_LL_OPEN          0x171
252 #define OBD_FAIL_MDS_LL_BLOCK            0x172
253
254 /* CMD */
255 #define OBD_FAIL_MDS_IS_SUBDIR_NET       0x180
256 #define OBD_FAIL_MDS_IS_SUBDIR_PACK      0x181
257 #define OBD_FAIL_MDS_SET_INFO_NET        0x182
258 #define OBD_FAIL_MDS_WRITEPAGE_NET       0x183
259 #define OBD_FAIL_MDS_WRITEPAGE_PACK      0x184
260 #define OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS 0x185
261 #define OBD_FAIL_MDS_GET_INFO_NET        0x186
262 #define OBD_FAIL_MDS_DQACQ_NET           0x187
263
264 /* OI scrub */
265 #define OBD_FAIL_OSD_SCRUB_DELAY                        0x190
266 #define OBD_FAIL_OSD_SCRUB_CRASH                        0x191
267 #define OBD_FAIL_OSD_SCRUB_FATAL                        0x192
268 #define OBD_FAIL_OSD_FID_MAPPING                        0x193
269 #define OBD_FAIL_OSD_LMA_INCOMPAT                       0x194
270 #define OBD_FAIL_OSD_COMPAT_INVALID_ENTRY               0x195
271 #define OBD_FAIL_OSD_COMPAT_NO_ENTRY                    0x196
272
273 #define OBD_FAIL_OST                     0x200
274 #define OBD_FAIL_OST_CONNECT_NET         0x201
275 #define OBD_FAIL_OST_DISCONNECT_NET      0x202
276 #define OBD_FAIL_OST_GET_INFO_NET        0x203
277 #define OBD_FAIL_OST_CREATE_NET          0x204
278 #define OBD_FAIL_OST_DESTROY_NET         0x205
279 #define OBD_FAIL_OST_GETATTR_NET         0x206
280 #define OBD_FAIL_OST_SETATTR_NET         0x207
281 #define OBD_FAIL_OST_OPEN_NET            0x208
282 #define OBD_FAIL_OST_CLOSE_NET           0x209
283 #define OBD_FAIL_OST_BRW_NET             0x20a
284 #define OBD_FAIL_OST_PUNCH_NET           0x20b
285 #define OBD_FAIL_OST_STATFS_NET          0x20c
286 #define OBD_FAIL_OST_HANDLE_UNPACK       0x20d
287 #define OBD_FAIL_OST_BRW_WRITE_BULK      0x20e
288 #define OBD_FAIL_OST_BRW_READ_BULK       0x20f
289 #define OBD_FAIL_OST_SYNC_NET            0x210
290 #define OBD_FAIL_OST_ALL_REPLY_NET       0x211
291 #define OBD_FAIL_OST_ALL_REQUEST_NET     0x212
292 #define OBD_FAIL_OST_LDLM_REPLY_NET      0x213
293 #define OBD_FAIL_OST_BRW_PAUSE_BULK      0x214
294 #define OBD_FAIL_OST_ENOSPC              0x215
295 #define OBD_FAIL_OST_EROFS               0x216
296 #define OBD_FAIL_OST_ENOENT              0x217
297 #define OBD_FAIL_OST_QUOTACHECK_NET      0x218
298 #define OBD_FAIL_OST_QUOTACTL_NET        0x219
299 #define OBD_FAIL_OST_CHECKSUM_RECEIVE    0x21a
300 #define OBD_FAIL_OST_CHECKSUM_SEND       0x21b
301 #define OBD_FAIL_OST_BRW_SIZE            0x21c
302 #define OBD_FAIL_OST_DROP_REQ            0x21d
303 #define OBD_FAIL_OST_SETATTR_CREDITS     0x21e
304 #define OBD_FAIL_OST_HOLD_WRITE_RPC      0x21f
305 #define OBD_FAIL_OST_BRW_WRITE_BULK2     0x220
306 #define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
307 #define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
308 #define OBD_FAIL_OST_PAUSE_CREATE        0x223
309 #define OBD_FAIL_OST_BRW_PAUSE_PACK      0x224
310 #define OBD_FAIL_OST_CONNECT_NET2        0x225
311 #define OBD_FAIL_OST_NOMEM               0x226
312 #define OBD_FAIL_OST_BRW_PAUSE_BULK2     0x227
313 #define OBD_FAIL_OST_MAPBLK_ENOSPC       0x228
314 #define OBD_FAIL_OST_ENOINO              0x229
315 #define OBD_FAIL_OST_DQACQ_NET           0x230
316 #define OBD_FAIL_OST_STATFS_EINPROGRESS  0x231
317 #define OBD_FAIL_OST_SET_INFO_NET        0x232
318 #define OBD_FAIL_OST_NODESTROY           0x233
319
320 #define OBD_FAIL_LDLM                    0x300
321 #define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
322 #define OBD_FAIL_LDLM_ENQUEUE_NET                       0x302
323 #define OBD_FAIL_LDLM_CONVERT_NET                       0x303
324 #define OBD_FAIL_LDLM_CANCEL_NET                        0x304
325 #define OBD_FAIL_LDLM_BL_CALLBACK_NET                   0x305
326 #define OBD_FAIL_LDLM_CP_CALLBACK_NET                   0x306
327 #define OBD_FAIL_LDLM_GL_CALLBACK_NET                   0x307
328 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
329 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
330 #define OBD_FAIL_LDLM_CREATE_RESOURCE    0x30a
331 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED    0x30b
332 #define OBD_FAIL_LDLM_REPLY              0x30c
333 #define OBD_FAIL_LDLM_RECOV_CLIENTS      0x30d
334 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
335 #define OBD_FAIL_LDLM_GLIMPSE            0x30f
336 #define OBD_FAIL_LDLM_CANCEL_RACE        0x310
337 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE  0x311
338 #define OBD_FAIL_LDLM_PAUSE_CANCEL       0x312
339 #define OBD_FAIL_LDLM_CLOSE_THREAD       0x313
340 #define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE  0x314
341 #define OBD_FAIL_LDLM_CP_CB_WAIT         0x315
342 #define OBD_FAIL_LDLM_OST_FAIL_RACE      0x316
343 #define OBD_FAIL_LDLM_INTR_CP_AST        0x317
344 #define OBD_FAIL_LDLM_CP_BL_RACE         0x318
345 #define OBD_FAIL_LDLM_NEW_LOCK           0x319
346 #define OBD_FAIL_LDLM_AGL_DELAY          0x31a
347 #define OBD_FAIL_LDLM_AGL_NOLOCK         0x31b
348 #define OBD_FAIL_LDLM_OST_LVB            0x31c
349 #define OBD_FAIL_LDLM_ENQUEUE_HANG       0x31d
350 #define OBD_FAIL_LDLM_PAUSE_CANCEL2      0x31f
351 #define OBD_FAIL_LDLM_CP_CB_WAIT2        0x320
352 #define OBD_FAIL_LDLM_CP_CB_WAIT3        0x321
353 #define OBD_FAIL_LDLM_CP_CB_WAIT4        0x322
354 #define OBD_FAIL_LDLM_CP_CB_WAIT5        0x323
355
356 /* LOCKLESS IO */
357 #define OBD_FAIL_LDLM_SET_CONTENTION     0x385
358
359 #define OBD_FAIL_OSC                     0x400
360 #define OBD_FAIL_OSC_BRW_READ_BULK       0x401
361 #define OBD_FAIL_OSC_BRW_WRITE_BULK      0x402
362 #define OBD_FAIL_OSC_LOCK_BL_AST         0x403
363 #define OBD_FAIL_OSC_LOCK_CP_AST         0x404
364 #define OBD_FAIL_OSC_MATCH               0x405
365 #define OBD_FAIL_OSC_BRW_PREP_REQ        0x406
366 #define OBD_FAIL_OSC_SHUTDOWN            0x407
367 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE    0x408
368 #define OBD_FAIL_OSC_CHECKSUM_SEND       0x409
369 #define OBD_FAIL_OSC_BRW_PREP_REQ2       0x40a
370 #define OBD_FAIL_OSC_CONNECT_CKSUM       0x40b
371 #define OBD_FAIL_OSC_CKSUM_ADLER_ONLY    0x40c
372 #define OBD_FAIL_OSC_DIO_PAUSE           0x40d
373 #define OBD_FAIL_OSC_OBJECT_CONTENTION   0x40e
374 #define OBD_FAIL_OSC_CP_CANCEL_RACE      0x40f
375 #define OBD_FAIL_OSC_CP_ENQ_RACE         0x410
376 #define OBD_FAIL_OSC_NO_GRANT            0x411
377 #define OBD_FAIL_OSC_DELAY_SETTIME       0x412
378
379 #define OBD_FAIL_PTLRPC                  0x500
380 #define OBD_FAIL_PTLRPC_ACK              0x501
381 #define OBD_FAIL_PTLRPC_RQBD             0x502
382 #define OBD_FAIL_PTLRPC_BULK_GET_NET     0x503
383 #define OBD_FAIL_PTLRPC_BULK_PUT_NET     0x504
384 #define OBD_FAIL_PTLRPC_DROP_RPC         0x505
385 #define OBD_FAIL_PTLRPC_DELAY_SEND       0x506
386 #define OBD_FAIL_PTLRPC_DELAY_RECOV      0x507
387 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB   0x508
388 #define OBD_FAIL_PTLRPC_PAUSE_REQ        0x50a
389 #define OBD_FAIL_PTLRPC_PAUSE_REP        0x50c
390 #define OBD_FAIL_PTLRPC_IMP_DEACTIVE     0x50d
391 #define OBD_FAIL_PTLRPC_DUMP_LOG         0x50e
392 #define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
393 #define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
394 #define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT    0x511
395 #define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT  0x512
396 #define OBD_FAIL_PTLRPC_DROP_REQ_OPC     0x513
397 #define OBD_FAIL_PTLRPC_FINISH_REPLAY    0x514
398 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB2  0x515
399 #define OBD_FAIL_PTLRPC_DELAY_IMP_FULL   0x516
400 #define OBD_FAIL_PTLRPC_CANCEL_RESEND    0x517
401
402 #define OBD_FAIL_OBD_PING_NET            0x600
403 #define OBD_FAIL_OBD_LOG_CANCEL_NET      0x601
404 #define OBD_FAIL_OBD_LOGD_NET            0x602
405 #define OBD_FAIL_OBD_QC_CALLBACK_NET     0x603
406 #define OBD_FAIL_OBD_DQACQ               0x604
407 #define OBD_FAIL_OBD_LLOG_SETUP          0x605
408 #define OBD_FAIL_OBD_LOG_CANCEL_REP      0x606
409 #define OBD_FAIL_OBD_IDX_READ_NET        0x607
410 #define OBD_FAIL_OBD_IDX_READ_BREAK      0x608
411 #define OBD_FAIL_OBD_NO_LRU              0x609
412
413 #define OBD_FAIL_TGT_REPLY_NET           0x700
414 #define OBD_FAIL_TGT_CONN_RACE           0x701
415 #define OBD_FAIL_TGT_FORCE_RECONNECT     0x702
416 #define OBD_FAIL_TGT_DELAY_CONNECT       0x703
417 #define OBD_FAIL_TGT_DELAY_RECONNECT     0x704
418 #define OBD_FAIL_TGT_DELAY_PRECREATE     0x705
419 #define OBD_FAIL_TGT_TOOMANY_THREADS     0x706
420 #define OBD_FAIL_TGT_REPLAY_DROP         0x707
421 #define OBD_FAIL_TGT_FAKE_EXP            0x708
422 #define OBD_FAIL_TGT_REPLAY_DELAY        0x709
423 #define OBD_FAIL_TGT_LAST_REPLAY         0x710
424 #define OBD_FAIL_TGT_CLIENT_ADD          0x711
425 #define OBD_FAIL_TGT_RCVG_FLAG           0x712
426 #define OBD_FAIL_TGT_DELAY_CONDITIONAL   0x713
427
428 #define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
429 #define OBD_FAIL_MDC_ENQUEUE_PAUSE       0x801
430 #define OBD_FAIL_MDC_OLD_EXT_FLAGS       0x802
431 #define OBD_FAIL_MDC_GETATTR_ENQUEUE     0x803
432 #define OBD_FAIL_MDC_RPCS_SEM            0x804
433 #define OBD_FAIL_MDC_LIGHTWEIGHT         0x805
434
435 #define OBD_FAIL_MGS                     0x900
436 #define OBD_FAIL_MGS_ALL_REQUEST_NET     0x901
437 #define OBD_FAIL_MGS_ALL_REPLY_NET       0x902
438 #define OBD_FAIL_MGC_PAUSE_PROCESS_LOG   0x903
439 #define OBD_FAIL_MGS_PAUSE_REQ           0x904
440 #define OBD_FAIL_MGS_PAUSE_TARGET_REG    0x905
441 #define OBD_FAIL_MGS_CONNECT_NET         0x906
442 #define OBD_FAIL_MGS_DISCONNECT_NET      0x907
443 #define OBD_FAIL_MGS_SET_INFO_NET        0x908
444 #define OBD_FAIL_MGS_EXCEPTION_NET       0x909
445 #define OBD_FAIL_MGS_TARGET_REG_NET      0x90a
446 #define OBD_FAIL_MGS_TARGET_DEL_NET      0x90b
447 #define OBD_FAIL_MGS_CONFIG_READ_NET     0x90c
448
449 #define OBD_FAIL_QUOTA_DQACQ_NET                        0xA01
450 #define OBD_FAIL_QUOTA_EDQUOT            0xA02
451 #define OBD_FAIL_QUOTA_DELAY_REINT       0xA03
452 #define OBD_FAIL_QUOTA_RECOVERABLE_ERR   0xA04
453
454 #define OBD_FAIL_LPROC_REMOVE            0xB00
455
456 #define OBD_FAIL_GENERAL_ALLOC           0xC00
457
458 #define OBD_FAIL_SEQ                     0x1000
459 #define OBD_FAIL_SEQ_QUERY_NET           0x1001
460 #define OBD_FAIL_SEQ_EXHAUST             0x1002
461
462 #define OBD_FAIL_FLD                     0x1100
463 #define OBD_FAIL_FLD_QUERY_NET           0x1101
464 #define OBD_FAIL_FLD_READ_NET            0x1102
465
466 #define OBD_FAIL_SEC_CTX                 0x1200
467 #define OBD_FAIL_SEC_CTX_INIT_NET        0x1201
468 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET   0x1202
469 #define OBD_FAIL_SEC_CTX_FINI_NET        0x1203
470 #define OBD_FAIL_SEC_CTX_HDL_PAUSE       0x1204
471
472 #define OBD_FAIL_LLOG                               0x1300
473 #define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET            0x1301
474 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET      0x1302
475 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303
476 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
477 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET  0x1305
478 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET  0x1306
479 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307
480 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308
481 #define OBD_FAIL_LLOG_CATINFO_NET                   0x1309
482 #define OBD_FAIL_MDS_SYNC_CAPA_SL                   0x1310
483 #define OBD_FAIL_SEQ_ALLOC                          0x1311
484
485 #define OBD_FAIL_LLITE                              0x1400
486 #define OBD_FAIL_LLITE_FAULT_TRUNC_RACE             0x1401
487 #define OBD_FAIL_LOCK_STATE_WAIT_INTR               0x1402
488 #define OBD_FAIL_LOV_INIT                           0x1403
489 #define OBD_FAIL_GLIMPSE_DELAY                      0x1404
490 #define OBD_FAIL_LLITE_XATTR_ENOMEM                 0x1405
491
492 #define OBD_FAIL_FID_INDIR      0x1501
493 #define OBD_FAIL_FID_INLMA      0x1502
494 #define OBD_FAIL_FID_IGIF       0x1504
495 #define OBD_FAIL_FID_LOOKUP     0x1505
496 #define OBD_FAIL_FID_NOLMA      0x1506
497
498 /* LFSCK */
499 #define OBD_FAIL_LFSCK_DELAY1           0x1600
500 #define OBD_FAIL_LFSCK_DELAY2           0x1601
501 #define OBD_FAIL_LFSCK_DELAY3           0x1602
502 #define OBD_FAIL_LFSCK_LINKEA_CRASH     0x1603
503 #define OBD_FAIL_LFSCK_LINKEA_MORE      0x1604
504 #define OBD_FAIL_LFSCK_LINKEA_MORE2     0x1605
505 #define OBD_FAIL_LFSCK_FATAL1           0x1608
506 #define OBD_FAIL_LFSCK_FATAL2           0x1609
507 #define OBD_FAIL_LFSCK_CRASH            0x160a
508 #define OBD_FAIL_LFSCK_NO_AUTO          0x160b
509 #define OBD_FAIL_LFSCK_NO_DOUBLESCAN    0x160c
510 #define OBD_FAIL_LFSCK_SKIP_LASTID      0x160d
511 #define OBD_FAIL_LFSCK_DELAY4           0x160e
512 #define OBD_FAIL_LFSCK_BAD_LMMOI        0x160f
513 #define OBD_FAIL_LFSCK_DANGLING         0x1610
514 #define OBD_FAIL_LFSCK_UNMATCHED_PAIR1  0x1611
515 #define OBD_FAIL_LFSCK_UNMATCHED_PAIR2  0x1612
516 #define OBD_FAIL_LFSCK_BAD_OWNER        0x1613
517 #define OBD_FAIL_LFSCK_MULTIPLE_REF     0x1614
518 #define OBD_FAIL_LFSCK_LOST_STRIPE      0x1615
519 #define OBD_FAIL_LFSCK_LOST_MDTOBJ      0x1616
520 #define OBD_FAIL_LFSCK_NOPFID           0x1617
521 #define OBD_FAIL_LFSCK_CHANGE_STRIPE    0x1618
522 #define OBD_FAIL_LFSCK_INVALID_PFID     0x1619
523 #define OBD_FAIL_LFSCK_LOST_SPEOBJ      0x161a
524 #define OBD_FAIL_LFSCK_DELAY5           0x161b
525
526 #define OBD_FAIL_LFSCK_NOTIFY_NET       0x16f0
527 #define OBD_FAIL_LFSCK_QUERY_NET        0x16f1
528
529 /* UPDATE */
530 #define OBD_FAIL_OUT_UPDATE_NET         0x1700
531 #define OBD_FAIL_OUT_UPDATE_NET_REP     0x1701
532
533 /* MIGRATE */
534 #define OBD_FAIL_MIGRATE_NET_REP                0x1800
535 #define OBD_FAIL_MIGRATE_ENTRIES                0x1801
536 #define OBD_FAIL_MIGRATE_LINKEA                 0x1802
537
538 /* LMV */
539 #define OBD_FAIL_UNKNOWN_LMV_STRIPE             0x1901
540
541 /* Assign references to moved code to reduce code changes */
542 #define OBD_FAIL_PRECHECK(id)                   CFS_FAIL_PRECHECK(id)
543 #define OBD_FAIL_CHECK(id)                      CFS_FAIL_CHECK(id)
544 #define OBD_FAIL_CHECK_VALUE(id, value)         CFS_FAIL_CHECK_VALUE(id, value)
545 #define OBD_FAIL_CHECK_ORSET(id, value)         CFS_FAIL_CHECK_ORSET(id, value)
546 #define OBD_FAIL_CHECK_RESET(id, value)         CFS_FAIL_CHECK_RESET(id, value)
547 #define OBD_FAIL_RETURN(id, ret)                CFS_FAIL_RETURN(id, ret)
548 #define OBD_FAIL_TIMEOUT(id, secs)              CFS_FAIL_TIMEOUT(id, secs)
549 #define OBD_FAIL_TIMEOUT_MS(id, ms)             CFS_FAIL_TIMEOUT_MS(id, ms)
550 #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) CFS_FAIL_TIMEOUT_ORSET(id, value, secs)
551 #define OBD_RACE(id)                            CFS_RACE(id)
552 #define OBD_FAIL_ONCE                           CFS_FAIL_ONCE
553 #define OBD_FAILED                              CFS_FAILED
554
555 extern atomic_t libcfs_kmemory;
556
557 #ifdef LPROCFS
558 #define obd_memory_add(size)                                                  \
559         lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
560 #define obd_memory_sub(size)                                                  \
561         lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
562 #define obd_memory_sum()                                                      \
563         lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT,                  \
564                                 LPROCFS_FIELDS_FLAGS_SUM)
565 #define obd_pages_add(order)                                                  \
566         lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT,                \
567                             (long)(1 << (order)))
568 #define obd_pages_sub(order)                                                  \
569         lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT,                \
570                             (long)(1 << (order)))
571 #define obd_pages_sum()                                                       \
572         lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT,            \
573                                 LPROCFS_FIELDS_FLAGS_SUM)
574
575 extern void obd_update_maxusage(void);
576 extern __u64 obd_memory_max(void);
577 extern __u64 obd_pages_max(void);
578
579 #else
580
581 extern __u64 obd_alloc;
582 extern __u64 obd_pages;
583
584 extern __u64 obd_max_alloc;
585 extern __u64 obd_max_pages;
586
587 static inline void obd_memory_add(long size)
588 {
589         obd_alloc += size;
590         if (obd_alloc > obd_max_alloc)
591                 obd_max_alloc = obd_alloc;
592 }
593
594 static inline void obd_memory_sub(long size)
595 {
596         obd_alloc -= size;
597 }
598
599 static inline void obd_pages_add(int order)
600 {
601         obd_pages += 1<< order;
602         if (obd_pages > obd_max_pages)
603                 obd_max_pages = obd_pages;
604 }
605
606 static inline void obd_pages_sub(int order)
607 {
608         obd_pages -= 1<< order;
609 }
610
611 #define obd_memory_sum() (obd_alloc)
612 #define obd_pages_sum()  (obd_pages)
613
614 #define obd_memory_max() (obd_max_alloc)
615 #define obd_pages_max() (obd_max_pages)
616
617 #endif
618
619 #define OBD_DEBUG_MEMUSAGE (1)
620
621 #if OBD_DEBUG_MEMUSAGE
622 #define OBD_ALLOC_POST(ptr, size, name)                                 \
623                 obd_memory_add(size);                                   \
624                 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",       \
625                        (int)(size), ptr)
626
627 #define OBD_FREE_PRE(ptr, size, name)                                   \
628         LASSERT(ptr);                                                   \
629         obd_memory_sub(size);                                           \
630         CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",               \
631                (int)(size), ptr);                                       \
632         POISON(ptr, 0x5a, size)
633
634 #else /* !OBD_DEBUG_MEMUSAGE */
635
636 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
637 #define OBD_FREE_PRE(ptr, size, name)   ((void)0)
638
639 #endif /* !OBD_DEBUG_MEMUSAGE */
640
641 #ifdef RANDOM_FAIL_ALLOC
642 #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
643 #else
644 #define HAS_FAIL_ALLOC_FLAG 0
645 #endif
646
647 #define OBD_ALLOC_FAIL_BITS 24
648 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
649 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
650
651 #if defined(LUSTRE_UTILS) /* this version is for utils only */
652 #define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)                    \
653 do {                                                                          \
654         (ptr) = (cptab) == NULL ?                                             \
655                 kmalloc(size, flags | __GFP_ZERO) :                           \
656                 cfs_cpt_malloc(cptab, cpt, size, flags | __GFP_ZERO);         \
657         if (unlikely((ptr) == NULL)) {                                        \
658                 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n",  \
659                        (int)(size), __FILE__, __LINE__);                      \
660         } else {                                                              \
661                 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n",          \
662                        (int)(size), ptr);                                     \
663         }                                                                     \
664 } while (0)
665
666 #else /* this version is for the kernel and liblustre */
667 #define OBD_FREE_RTN0(ptr)                                                    \
668 ({                                                                            \
669         kfree(ptr);                                                        \
670         (ptr) = NULL;                                                         \
671         0;                                                                    \
672 })
673
674 #define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)                    \
675 do {                                                                          \
676         (ptr) = (cptab) == NULL ?                                             \
677                 kmalloc(size, flags | __GFP_ZERO) :                           \
678                 cfs_cpt_malloc(cptab, cpt, size, flags | __GFP_ZERO);         \
679         if (likely((ptr) != NULL &&                                           \
680                    (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
681                     !obd_alloc_fail(ptr, #ptr, "km", size,                    \
682                                     __FILE__, __LINE__) ||                    \
683                     OBD_FREE_RTN0(ptr)))){                                    \
684                 OBD_ALLOC_POST(ptr, size, "kmalloced");                       \
685         }                                                                     \
686 } while (0)
687 #endif
688
689 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                    \
690         __OBD_MALLOC_VERBOSE(ptr, NULL, 0, size, gfp_mask)
691
692 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_NOFS)
693 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
694 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
695 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
696
697 #define OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, gfp_mask)                    \
698         __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, gfp_mask)
699
700 #define OBD_CPT_ALLOC(ptr, cptab, cpt, size)                                  \
701         OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS)
702
703 #define OBD_CPT_ALLOC_PTR(ptr, cptab, cpt)                                    \
704         OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof *(ptr))
705
706 # define __OBD_VMALLOC_VEROBSE(ptr, cptab, cpt, size)                         \
707 do {                                                                          \
708         (ptr) = cptab == NULL ?                                               \
709                 vmalloc(size) :                                       \
710                 cfs_cpt_vmalloc(cptab, cpt, size);                            \
711         if (unlikely((ptr) == NULL)) {                                        \
712                 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",           \
713                        (int)(size));                                          \
714                 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
715                        obd_memory_sum(), atomic_read(&libcfs_kmemory));       \
716         } else {                                                              \
717                 memset(ptr, 0, size);                                         \
718                 OBD_ALLOC_POST(ptr, size, "vmalloced");                       \
719         }                                                                     \
720 } while(0)
721
722 # define OBD_VMALLOC(ptr, size)                                               \
723          __OBD_VMALLOC_VEROBSE(ptr, NULL, 0, size)
724 # define OBD_CPT_VMALLOC(ptr, cptab, cpt, size)                               \
725          __OBD_VMALLOC_VEROBSE(ptr, cptab, cpt, size)
726
727 #ifdef __KERNEL__
728
729 /* Allocations above this size are considered too big and could not be done
730  * atomically.
731  *
732  * Be very careful when changing this value, especially when decreasing it,
733  * since vmalloc in Linux doesn't perform well on multi-cores system, calling
734  * vmalloc in critical path would hurt peformance badly. See LU-66.
735  */
736 #define OBD_ALLOC_BIG (4 * PAGE_CACHE_SIZE)
737
738 #define OBD_ALLOC_LARGE(ptr, size)                                            \
739 do {                                                                          \
740         if (size > OBD_ALLOC_BIG)                                             \
741                 OBD_VMALLOC(ptr, size);                                       \
742         else                                                                  \
743                 OBD_ALLOC(ptr, size);                                         \
744 } while (0)
745
746 #define OBD_CPT_ALLOC_LARGE(ptr, cptab, cpt, size)                            \
747 do {                                                                          \
748         if (size > OBD_ALLOC_BIG)                                             \
749                 OBD_CPT_VMALLOC(ptr, cptab, cpt, size);                       \
750         else                                                                  \
751                 OBD_CPT_ALLOC(ptr, cptab, cpt, size);                         \
752 } while (0)
753
754 #define OBD_FREE_LARGE(ptr, size)                                             \
755 do {                                                                          \
756         if (size > OBD_ALLOC_BIG)                                             \
757                 OBD_VFREE(ptr, size);                                         \
758         else                                                                  \
759                 OBD_FREE(ptr, size);                                          \
760 } while (0)
761
762 #else /* !__KERNEL__ */
763
764 #define OBD_ALLOC_LARGE(ptr, size)                                            \
765         OBD_ALLOC(ptr, size)
766 #define OBD_CPT_ALLOC_LARGE(ptr, cptab, cpt, size)                            \
767         OBD_ALLOC(ptr, size)
768 #define OBD_FREE_LARGE(ptr, size)                                             \
769         OBD_FREE(ptr, size)
770
771 #endif /* __KERNEL__ */
772
773 #ifdef CONFIG_DEBUG_SLAB
774 #define POISON(ptr, c, s) do {} while (0)
775 #define POISON_PTR(ptr)  ((void)0)
776 #else
777 #define POISON(ptr, c, s) memset(ptr, c, s)
778 #define POISON_PTR(ptr)  (ptr) = (void *)0xdeadbeef
779 #endif
780
781 #ifdef POISON_BULK
782 #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_CACHE_SIZE);   \
783                                     kunmap(page); } while (0)
784 #else
785 #define POISON_PAGE(page, val) do { } while (0)
786 #endif
787
788 #ifdef __KERNEL__
789 #define OBD_FREE(ptr, size)                                                   \
790 do {                                                                          \
791         OBD_FREE_PRE(ptr, size, "kfreed");                                    \
792         kfree(ptr);                                                        \
793         POISON_PTR(ptr);                                                      \
794 } while(0)
795
796
797 #define OBD_FREE_RCU(ptr, size, handle)                                       \
798 do {                                                                          \
799         struct portals_handle *__h = (handle);                                \
800                                                                               \
801         LASSERT(handle != NULL);                                              \
802         __h->h_cookie = (unsigned long)(ptr);                                 \
803         __h->h_size = (size);                                                 \
804         call_rcu(&__h->h_rcu, class_handle_free_cb);                          \
805         POISON_PTR(ptr);                                                      \
806 } while(0)
807
808 #else
809 #define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
810 #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
811 #endif /* ifdef __KERNEL__ */
812
813 #define OBD_VFREE(ptr, size)                            \
814         do {                                            \
815                 OBD_FREE_PRE(ptr, size, "vfreed");      \
816                 vfree(ptr);                     \
817                 POISON_PTR(ptr);                        \
818         } while (0)
819
820 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
821  * HAVE A CTOR THAT DOES ANYTHING.  its work will be cleared here.  we'd
822  * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
823 #define OBD_SLAB_FREE_RTN0(ptr, slab)                                         \
824 ({                                                                            \
825         kmem_cache_free((slab), (ptr));                                    \
826         (ptr) = NULL;                                                         \
827         0;                                                                    \
828 })
829
830 #define __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, type)           \
831 do {                                                                          \
832         LASSERT(ergo((type) != GFP_ATOMIC, !in_interrupt()));         \
833         (ptr) = (cptab) == NULL ?                                             \
834                 kmem_cache_alloc(slab, type | __GFP_ZERO) :                   \
835                 cfs_mem_cache_cpt_alloc(slab, cptab, cpt, type | __GFP_ZERO); \
836         if (likely((ptr) != NULL &&                                           \
837                    (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
838                     !obd_alloc_fail(ptr, #ptr, "slab-", size,                 \
839                                     __FILE__, __LINE__) ||                    \
840                     OBD_SLAB_FREE_RTN0(ptr, slab)))) {                        \
841                 OBD_ALLOC_POST(ptr, size, "slab-alloced");                    \
842         }                                                                     \
843 } while(0)
844
845 #define OBD_SLAB_ALLOC_GFP(ptr, slab, size, flags)                            \
846         __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, NULL, 0, size, flags)
847 #define OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, flags)            \
848         __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, flags)
849
850 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
851
852 #define OBD_SLAB_FREE(ptr, slab, size)                                        \
853 do {                                                                          \
854         OBD_FREE_PRE(ptr, size, "slab-freed");                                \
855         kmem_cache_free(slab, ptr);                                        \
856         POISON_PTR(ptr);                                                      \
857 } while(0)
858
859 #define OBD_SLAB_ALLOC(ptr, slab, size)                                       \
860         OBD_SLAB_ALLOC_GFP(ptr, slab, size, GFP_NOFS)
861
862 #define OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, size)                       \
863         OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, GFP_NOFS)
864
865 #define OBD_SLAB_ALLOC_PTR(ptr, slab)                                         \
866         OBD_SLAB_ALLOC(ptr, slab, sizeof *(ptr))
867
868 #define OBD_SLAB_CPT_ALLOC_PTR(ptr, slab, cptab, cpt)                         \
869         OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, sizeof *(ptr))
870
871 #define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, flags)                              \
872         OBD_SLAB_ALLOC_GFP(ptr, slab, sizeof *(ptr), flags)
873
874 #define OBD_SLAB_CPT_ALLOC_PTR_GFP(ptr, slab, cptab, cpt, flags)                      \
875         OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, sizeof *(ptr), flags)
876
877 #define OBD_SLAB_FREE_PTR(ptr, slab)                                          \
878         OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
879
880 #define KEY_IS(str) \
881         (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
882
883 /* Wrapper for contiguous page frame allocation */
884 #define __OBD_PAGE_ALLOC_VERBOSE(ptr, cptab, cpt, gfp_mask)                   \
885 do {                                                                          \
886         (ptr) = (cptab) == NULL ?                                             \
887                 alloc_page(gfp_mask) :                                \
888                 cfs_page_cpt_alloc(cptab, cpt, gfp_mask);                     \
889         if (unlikely((ptr) == NULL)) {                                        \
890                 CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
891                        "failed\n", (int)1,                                    \
892                        (__u64)(1 << PAGE_CACHE_SHIFT));                         \
893                 CERROR(LPU64" total bytes and "LPU64" total pages "           \
894                        "("LPU64" bytes) allocated by Lustre, "                \
895                        "%d total bytes by LNET\n",                            \
896                        obd_memory_sum(),                                      \
897                        obd_pages_sum() << PAGE_CACHE_SHIFT,                   \
898                        obd_pages_sum(),                                       \
899                        atomic_read(&libcfs_kmemory));                         \
900         } else {                                                              \
901                 obd_pages_add(0);                                             \
902                 CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / "      \
903                        LPU64" bytes at %p.\n",                                \
904                        (int)1,                                                \
905                        (__u64)(1 << PAGE_CACHE_SHIFT), ptr);                    \
906         }                                                                     \
907 } while (0)
908
909 #define OBD_PAGE_ALLOC(ptr, gfp_mask)                                         \
910         __OBD_PAGE_ALLOC_VERBOSE(ptr, NULL, 0, gfp_mask)
911 #define OBD_PAGE_CPT_ALLOC(ptr, cptab, cpt, gfp_mask)                         \
912         __OBD_PAGE_ALLOC_VERBOSE(ptr, cptab, cpt, gfp_mask)
913
914 #define OBD_PAGE_FREE(ptr)                                                    \
915 do {                                                                          \
916         LASSERT(ptr);                                                         \
917         obd_pages_sub(0);                                                     \
918         CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
919                "at %p.\n",                                                    \
920                (int)1, (__u64)(1 << PAGE_CACHE_SHIFT),                          \
921                ptr);                                                          \
922         __free_page(ptr);                                                   \
923         (ptr) = (void *)0xdeadbeef;                                           \
924 } while (0)
925
926 #endif