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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_STATS_NUM,
58 };
59
60 extern unsigned int obd_debug_peer_on_timeout;
61 extern unsigned int obd_dump_on_timeout;
62 extern unsigned int obd_dump_on_eviction;
63 /* obd_timeout should only be used for recovery, not for
64    networking / disk / timings affected by load (use Adaptive Timeouts) */
65 extern unsigned int obd_timeout;          /* seconds */
66 extern unsigned int ldlm_timeout;         /* seconds */
67 extern unsigned int obd_timeout_set;
68 extern unsigned int ldlm_timeout_set;
69 extern unsigned int bulk_timeout;
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 long obd_max_dirty_pages;
76 extern atomic_long_t obd_dirty_pages;
77 extern atomic_long_t obd_dirty_transit_pages;
78 extern char obd_jobid_var[];
79
80 /* Some hash init argument constants */
81 #define HASH_POOLS_BKT_BITS 3
82 #define HASH_POOLS_CUR_BITS 3
83 #define HASH_POOLS_MAX_BITS 7
84 #define HASH_UUID_BKT_BITS 5
85 #define HASH_UUID_CUR_BITS 7
86 #define HASH_UUID_MAX_BITS 12
87 #define HASH_NID_BKT_BITS 5
88 #define HASH_NID_CUR_BITS 7
89 #define HASH_NID_MAX_BITS 12
90 #define HASH_NID_STATS_BKT_BITS 5
91 #define HASH_NID_STATS_CUR_BITS 7
92 #define HASH_NID_STATS_MAX_BITS 12
93 #define HASH_GEN_BKT_BITS 5
94 #define HASH_GEN_CUR_BITS 7
95 #define HASH_GEN_MAX_BITS 12
96 #define HASH_LQE_BKT_BITS 5
97 #define HASH_LQE_CUR_BITS 7
98 #define HASH_LQE_MAX_BITS 12
99 #define HASH_CONN_BKT_BITS 5
100 #define HASH_CONN_CUR_BITS 5
101 #define HASH_CONN_MAX_BITS 15
102 #define HASH_EXP_LOCK_BKT_BITS  5
103 #define HASH_EXP_LOCK_CUR_BITS  7
104 #define HASH_EXP_LOCK_MAX_BITS  16
105 #define HASH_CL_ENV_BKT_BITS    5
106 #define HASH_CL_ENV_BITS        10
107 #define HASH_JOB_STATS_BKT_BITS 5
108 #define HASH_JOB_STATS_CUR_BITS 7
109 #define HASH_JOB_STATS_MAX_BITS 12
110
111 /* Timeout definitions */
112 #define OBD_TIMEOUT_DEFAULT             100
113 #define LDLM_TIMEOUT_DEFAULT            20
114 #define MDS_LDLM_TIMEOUT_DEFAULT        6
115 /* Time to wait for all clients to reconnect during recovery (hard limit) */
116 #define OBD_RECOVERY_TIME_HARD          (obd_timeout * 9)
117 /* Time to wait for all clients to reconnect during recovery (soft limit) */
118 /* Should be very conservative; must catch the first reconnect after reboot */
119 #define OBD_RECOVERY_TIME_SOFT          (obd_timeout * 3)
120 /* Change recovery-small 26b time if you change this */
121 #define PING_INTERVAL max(obd_timeout / 4, 1U)
122 /* a bit more than maximal journal commit time in seconds */
123 #define PING_INTERVAL_SHORT min(PING_INTERVAL, 7U)
124 /* Client may skip 1 ping; we must wait at least 2.5. But for multiple
125  * failover targets the client only pings one server at a time, and pings
126  * can be lost on a loaded network. Since eviction has serious consequences,
127  * and there's no urgent need to evict a client just because it's idle, we
128  * should be very conservative here. */
129 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
130 #define DISK_TIMEOUT 50          /* Beyond this we warn about disk speed */
131 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
132  /* Max connect interval for nonresponsive servers; ~50s to avoid building up
133     connect requests in the LND queues, but within obd_timeout so we don't
134     miss the recovery window */
135 #define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN,obd_timeout))
136 #define CONNECTION_SWITCH_INC 5  /* Connection timeout backoff */
137 /* In general this should be low to have quick detection of a system
138    running on a backup server. (If it's too low, import_select_connection
139    will increase the timeout anyhow.)  */
140 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
141 /* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
142 #define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
143                              INITIAL_CONNECT_TIMEOUT)
144 /* The min time a target should wait for clients to reconnect in recovery */
145 #define OBD_RECOVERY_TIME_MIN    (2*RECONNECT_DELAY_MAX)
146 #define OBD_IR_FACTOR_MIN         1
147 #define OBD_IR_FACTOR_MAX         10
148 #define OBD_IR_FACTOR_DEFAULT    (OBD_IR_FACTOR_MAX/2)
149 /* default timeout for the MGS to become IR_FULL */
150 #define OBD_IR_MGS_TIMEOUT       (4*obd_timeout)
151 #define LONG_UNLINK 300          /* Unlink should happen before now */
152
153 /**
154  * Time interval of shrink, if the client is "idle" more than this interval,
155  * then the ll_grant thread will return the requested grant space to filter
156  */
157 #define GRANT_SHRINK_INTERVAL            1200/*20 minutes*/
158
159 #define OBD_FAIL_MDS                     0x100
160 #define OBD_FAIL_MDS_HANDLE_UNPACK       0x101
161 #define OBD_FAIL_MDS_GETATTR_NET         0x102
162 #define OBD_FAIL_MDS_GETATTR_PACK        0x103
163 #define OBD_FAIL_MDS_READPAGE_NET        0x104
164 #define OBD_FAIL_MDS_READPAGE_PACK       0x105
165 #define OBD_FAIL_MDS_SENDPAGE            0x106
166 #define OBD_FAIL_MDS_REINT_NET           0x107
167 #define OBD_FAIL_MDS_REINT_UNPACK        0x108
168 #define OBD_FAIL_MDS_REINT_SETATTR       0x109
169 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
170 #define OBD_FAIL_MDS_REINT_CREATE        0x10b
171 #define OBD_FAIL_MDS_REINT_CREATE_WRITE  0x10c
172 #define OBD_FAIL_MDS_REINT_UNLINK        0x10d
173 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE  0x10e
174 #define OBD_FAIL_MDS_REINT_LINK          0x10f
175 #define OBD_FAIL_MDS_REINT_LINK_WRITE    0x110
176 #define OBD_FAIL_MDS_REINT_RENAME        0x111
177 #define OBD_FAIL_MDS_REINT_RENAME_WRITE  0x112
178 #define OBD_FAIL_MDS_OPEN_NET            0x113
179 #define OBD_FAIL_MDS_OPEN_PACK           0x114
180 #define OBD_FAIL_MDS_CLOSE_NET           0x115
181 #define OBD_FAIL_MDS_CLOSE_PACK          0x116
182 #define OBD_FAIL_MDS_CONNECT_NET         0x117
183 #define OBD_FAIL_MDS_CONNECT_PACK        0x118
184 #define OBD_FAIL_MDS_REINT_NET_REP       0x119
185 #define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
186 #define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
187 #define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
188 #define OBD_FAIL_MDS_STATFS_PACK         0x11d
189 #define OBD_FAIL_MDS_STATFS_NET          0x11e
190 #define OBD_FAIL_MDS_GETATTR_NAME_NET    0x11f
191 #define OBD_FAIL_MDS_PIN_NET             0x120
192 #define OBD_FAIL_MDS_UNPIN_NET           0x121
193 #define OBD_FAIL_MDS_ALL_REPLY_NET       0x122
194 #define OBD_FAIL_MDS_ALL_REQUEST_NET     0x123
195 #define OBD_FAIL_MDS_SYNC_NET            0x124
196 #define OBD_FAIL_MDS_SYNC_PACK           0x125
197 /*      OBD_FAIL_MDS_DONE_WRITING_NET    0x126 obsolete since 2.8.0 */
198 /*      OBD_FAIL_MDS_DONE_WRITING_PACK   0x127 obsolete since 2.8.0 */
199 #define OBD_FAIL_MDS_ALLOC_OBDO          0x128
200 #define OBD_FAIL_MDS_PAUSE_OPEN          0x129
201 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP    0x12a
202 #define OBD_FAIL_MDS_OPEN_CREATE         0x12b
203 #define OBD_FAIL_MDS_OST_SETATTR         0x12c
204 /*      OBD_FAIL_MDS_QUOTACHECK_NET      0x12d obsolete since 2.4 */
205 #define OBD_FAIL_MDS_QUOTACTL_NET        0x12e
206 #define OBD_FAIL_MDS_CLIENT_ADD          0x12f
207 #define OBD_FAIL_MDS_GETXATTR_NET        0x130
208 #define OBD_FAIL_MDS_GETXATTR_PACK       0x131
209 #define OBD_FAIL_MDS_SETXATTR_NET        0x132
210 #define OBD_FAIL_MDS_SETXATTR            0x133
211 #define OBD_FAIL_MDS_SETXATTR_WRITE      0x134
212 #define OBD_FAIL_MDS_FS_SETUP            0x135
213 #define OBD_FAIL_MDS_RESEND              0x136
214 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED  0x137
215 #define OBD_FAIL_MDS_LOV_SYNC_RACE       0x138
216 #define OBD_FAIL_MDS_OSC_PRECREATE       0x139
217 #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT   0x13a
218 #define OBD_FAIL_MDS_CLOSE_NET_REP       0x13b
219 #define OBD_FAIL_MDS_BLOCK_QUOTA_REQ     0x13c
220 #define OBD_FAIL_MDS_DROP_QUOTA_REQ      0x13d
221 #define OBD_FAIL_MDS_REMOVE_COMMON_EA    0x13e
222 #define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING   0x13f
223 #define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD    0x140
224 #define OBD_FAIL_MDS_LOV_PREP_CREATE     0x141
225 #define OBD_FAIL_MDS_REINT_DELAY         0x142
226 #define OBD_FAIL_MDS_READLINK_EPROTO     0x143
227 #define OBD_FAIL_MDS_OPEN_WAIT_CREATE    0x144
228 #define OBD_FAIL_MDS_PDO_LOCK            0x145
229 #define OBD_FAIL_MDS_PDO_LOCK2           0x146
230 #define OBD_FAIL_MDS_OSC_CREATE_FAIL     0x147
231 #define OBD_FAIL_MDS_NEGATIVE_POSITIVE   0x148
232 #define OBD_FAIL_MDS_HSM_STATE_GET_NET          0x149
233 #define OBD_FAIL_MDS_HSM_STATE_SET_NET          0x14a
234 #define OBD_FAIL_MDS_HSM_PROGRESS_NET           0x14b
235 #define OBD_FAIL_MDS_HSM_REQUEST_NET            0x14c
236 #define OBD_FAIL_MDS_HSM_CT_REGISTER_NET        0x14d
237 #define OBD_FAIL_MDS_HSM_CT_UNREGISTER_NET      0x14e
238 #define OBD_FAIL_MDS_SWAP_LAYOUTS_NET           0x14f
239 #define OBD_FAIL_MDS_HSM_ACTION_NET             0x150
240 #define OBD_FAIL_MDS_CHANGELOG_INIT             0x151
241 #define OBD_FAIL_MDS_HSM_SWAP_LAYOUTS           0x152
242 #define OBD_FAIL_MDS_RENAME              0x153
243 #define OBD_FAIL_MDS_RENAME2             0x154
244 #define OBD_FAIL_MDS_RENAME3             0x155
245 #define OBD_FAIL_MDS_RENAME4             0x156
246 #define OBD_FAIL_MDS_LDLM_REPLY_NET      0x157
247 #define OBD_FAIL_MDS_STALE_DIR_LAYOUT    0x158
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 #define OBD_FAIL_OSD_OST_EA_FID_SET                     0x197
273
274 #define OBD_FAIL_OST                     0x200
275 #define OBD_FAIL_OST_CONNECT_NET         0x201
276 #define OBD_FAIL_OST_DISCONNECT_NET      0x202
277 #define OBD_FAIL_OST_GET_INFO_NET        0x203
278 #define OBD_FAIL_OST_CREATE_NET          0x204
279 #define OBD_FAIL_OST_DESTROY_NET         0x205
280 #define OBD_FAIL_OST_GETATTR_NET         0x206
281 #define OBD_FAIL_OST_SETATTR_NET         0x207
282 #define OBD_FAIL_OST_OPEN_NET            0x208
283 #define OBD_FAIL_OST_CLOSE_NET           0x209
284 #define OBD_FAIL_OST_BRW_NET             0x20a
285 #define OBD_FAIL_OST_PUNCH_NET           0x20b
286 #define OBD_FAIL_OST_STATFS_NET          0x20c
287 #define OBD_FAIL_OST_HANDLE_UNPACK       0x20d
288 #define OBD_FAIL_OST_BRW_WRITE_BULK      0x20e
289 #define OBD_FAIL_OST_BRW_READ_BULK       0x20f
290 #define OBD_FAIL_OST_SYNC_NET            0x210
291 #define OBD_FAIL_OST_ALL_REPLY_NET       0x211
292 #define OBD_FAIL_OST_ALL_REQUEST_NET     0x212
293 #define OBD_FAIL_OST_LDLM_REPLY_NET      0x213
294 #define OBD_FAIL_OST_BRW_PAUSE_BULK      0x214
295 #define OBD_FAIL_OST_ENOSPC              0x215
296 #define OBD_FAIL_OST_EROFS               0x216
297 #define OBD_FAIL_OST_ENOENT              0x217
298 /*      OBD_FAIL_OST_QUOTACHECK_NET      0x218 obsolete since 2.4 */
299 #define OBD_FAIL_OST_QUOTACTL_NET        0x219
300 #define OBD_FAIL_OST_CHECKSUM_RECEIVE    0x21a
301 #define OBD_FAIL_OST_CHECKSUM_SEND       0x21b
302 #define OBD_FAIL_OST_BRW_SIZE            0x21c
303 #define OBD_FAIL_OST_DROP_REQ            0x21d
304 #define OBD_FAIL_OST_SETATTR_CREDITS     0x21e
305 #define OBD_FAIL_OST_HOLD_WRITE_RPC      0x21f
306 #define OBD_FAIL_OST_BRW_WRITE_BULK2     0x220
307 #define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
308 #define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
309 #define OBD_FAIL_OST_PAUSE_CREATE        0x223
310 #define OBD_FAIL_OST_BRW_PAUSE_PACK      0x224
311 #define OBD_FAIL_OST_CONNECT_NET2        0x225
312 #define OBD_FAIL_OST_NOMEM               0x226
313 #define OBD_FAIL_OST_BRW_PAUSE_BULK2     0x227
314 #define OBD_FAIL_OST_MAPBLK_ENOSPC       0x228
315 #define OBD_FAIL_OST_ENOINO              0x229
316 #define OBD_FAIL_OST_DQACQ_NET           0x230
317 #define OBD_FAIL_OST_STATFS_EINPROGRESS  0x231
318 #define OBD_FAIL_OST_SET_INFO_NET        0x232
319 #define OBD_FAIL_OST_NODESTROY           0x233
320
321 #define OBD_FAIL_LDLM                    0x300
322 #define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
323 #define OBD_FAIL_LDLM_ENQUEUE_NET                       0x302
324 #define OBD_FAIL_LDLM_CONVERT_NET                       0x303
325 #define OBD_FAIL_LDLM_CANCEL_NET                        0x304
326 #define OBD_FAIL_LDLM_BL_CALLBACK_NET                   0x305
327 #define OBD_FAIL_LDLM_CP_CALLBACK_NET                   0x306
328 #define OBD_FAIL_LDLM_GL_CALLBACK_NET                   0x307
329 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
330 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
331 #define OBD_FAIL_LDLM_CREATE_RESOURCE    0x30a
332 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED    0x30b
333 #define OBD_FAIL_LDLM_REPLY              0x30c
334 #define OBD_FAIL_LDLM_RECOV_CLIENTS      0x30d
335 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
336 #define OBD_FAIL_LDLM_GLIMPSE            0x30f
337 #define OBD_FAIL_LDLM_CANCEL_RACE        0x310
338 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE  0x311
339 #define OBD_FAIL_LDLM_PAUSE_CANCEL       0x312
340 #define OBD_FAIL_LDLM_CLOSE_THREAD       0x313
341 #define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE  0x314
342 #define OBD_FAIL_LDLM_CP_CB_WAIT         0x315
343 #define OBD_FAIL_LDLM_OST_FAIL_RACE      0x316
344 #define OBD_FAIL_LDLM_INTR_CP_AST        0x317
345 #define OBD_FAIL_LDLM_CP_BL_RACE         0x318
346 #define OBD_FAIL_LDLM_NEW_LOCK           0x319
347 #define OBD_FAIL_LDLM_AGL_DELAY          0x31a
348 #define OBD_FAIL_LDLM_AGL_NOLOCK         0x31b
349 #define OBD_FAIL_LDLM_OST_LVB            0x31c
350 #define OBD_FAIL_LDLM_ENQUEUE_HANG       0x31d
351 #define OBD_FAIL_LDLM_PAUSE_CANCEL2      0x31f
352 #define OBD_FAIL_LDLM_CP_CB_WAIT2        0x320
353 #define OBD_FAIL_LDLM_CP_CB_WAIT3        0x321
354 #define OBD_FAIL_LDLM_CP_CB_WAIT4        0x322
355 #define OBD_FAIL_LDLM_CP_CB_WAIT5        0x323
356 #define OBD_FAIL_LDLM_SRV_BL_AST         0x324
357 #define OBD_FAIL_LDLM_SRV_CP_AST         0x325
358 #define OBD_FAIL_LDLM_SRV_GL_AST         0x326
359 #define OBD_FAIL_LDLM_WATERMARK_LOW      0x327
360 #define OBD_FAIL_LDLM_WATERMARK_HIGH     0x328
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_SEQ                     0x1000
467 #define OBD_FAIL_SEQ_QUERY_NET           0x1001
468 #define OBD_FAIL_SEQ_EXHAUST             0x1002
469
470 #define OBD_FAIL_FLD                     0x1100
471 #define OBD_FAIL_FLD_QUERY_NET           0x1101
472 #define OBD_FAIL_FLD_READ_NET            0x1102
473
474 #define OBD_FAIL_SEC_CTX                 0x1200
475 #define OBD_FAIL_SEC_CTX_INIT_NET        0x1201
476 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET   0x1202
477 #define OBD_FAIL_SEC_CTX_FINI_NET        0x1203
478 #define OBD_FAIL_SEC_CTX_HDL_PAUSE       0x1204
479
480 #define OBD_FAIL_LLOG                               0x1300
481 #define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET            0x1301
482 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET      0x1302
483 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303
484 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
485 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET  0x1305
486 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET  0x1306
487 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307
488 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308
489 #define OBD_FAIL_LLOG_CATINFO_NET                   0x1309
490 #define OBD_FAIL_MDS_SYNC_CAPA_SL                   0x1310
491 #define OBD_FAIL_SEQ_ALLOC                          0x1311
492
493 #define OBD_FAIL_LLITE                              0x1400
494 #define OBD_FAIL_LLITE_FAULT_TRUNC_RACE             0x1401
495 #define OBD_FAIL_LOCK_STATE_WAIT_INTR               0x1402
496 #define OBD_FAIL_LOV_INIT                           0x1403
497 #define OBD_FAIL_GLIMPSE_DELAY                      0x1404
498 #define OBD_FAIL_LLITE_XATTR_ENOMEM                 0x1405
499 #define OBD_FAIL_MAKE_LOVEA_HOLE                    0x1406
500 #define OBD_FAIL_LLITE_LOST_LAYOUT                  0x1407
501
502 #define OBD_FAIL_FID_INDIR      0x1501
503 #define OBD_FAIL_FID_INLMA      0x1502
504 #define OBD_FAIL_FID_IGIF       0x1504
505 #define OBD_FAIL_FID_LOOKUP     0x1505
506 #define OBD_FAIL_FID_NOLMA      0x1506
507
508 /* LFSCK */
509 #define OBD_FAIL_LFSCK_DELAY1           0x1600
510 #define OBD_FAIL_LFSCK_DELAY2           0x1601
511 #define OBD_FAIL_LFSCK_DELAY3           0x1602
512 #define OBD_FAIL_LFSCK_LINKEA_CRASH     0x1603
513 #define OBD_FAIL_LFSCK_LINKEA_MORE      0x1604
514 #define OBD_FAIL_LFSCK_LINKEA_MORE2     0x1605
515 #define OBD_FAIL_LFSCK_FATAL1           0x1608
516 #define OBD_FAIL_LFSCK_FATAL2           0x1609
517 #define OBD_FAIL_LFSCK_CRASH            0x160a
518 #define OBD_FAIL_LFSCK_NO_AUTO          0x160b
519 #define OBD_FAIL_LFSCK_NO_DOUBLESCAN    0x160c
520 #define OBD_FAIL_LFSCK_SKIP_LASTID      0x160d
521 #define OBD_FAIL_LFSCK_DELAY4           0x160e
522 #define OBD_FAIL_LFSCK_BAD_LMMOI        0x160f
523 #define OBD_FAIL_LFSCK_DANGLING         0x1610
524 #define OBD_FAIL_LFSCK_UNMATCHED_PAIR1  0x1611
525 #define OBD_FAIL_LFSCK_UNMATCHED_PAIR2  0x1612
526 #define OBD_FAIL_LFSCK_BAD_OWNER        0x1613
527 #define OBD_FAIL_LFSCK_MULTIPLE_REF     0x1614
528 #define OBD_FAIL_LFSCK_LOST_STRIPE      0x1615
529 #define OBD_FAIL_LFSCK_LOST_MDTOBJ      0x1616
530 #define OBD_FAIL_LFSCK_NOPFID           0x1617
531 #define OBD_FAIL_LFSCK_CHANGE_STRIPE    0x1618
532 #define OBD_FAIL_LFSCK_INVALID_PFID     0x1619
533 #define OBD_FAIL_LFSCK_LOST_SPEOBJ      0x161a
534 #define OBD_FAIL_LFSCK_DELAY5           0x161b
535 #define OBD_FAIL_LFSCK_BAD_NETWORK      0x161c
536 #define OBD_FAIL_LFSCK_NO_LINKEA        0x161d
537 #define OBD_FAIL_LFSCK_BAD_PARENT       0x161e
538 #define OBD_FAIL_LFSCK_DANGLING2        0x1620
539 #define OBD_FAIL_LFSCK_DANGLING3        0x1621
540 #define OBD_FAIL_LFSCK_MUL_REF          0x1622
541 #define OBD_FAIL_LFSCK_BAD_TYPE         0x1623
542 #define OBD_FAIL_LFSCK_NO_NAMEENTRY     0x1624
543 #define OBD_FAIL_LFSCK_MORE_NLINK       0x1625
544 #define OBD_FAIL_LFSCK_LESS_NLINK       0x1626
545 #define OBD_FAIL_LFSCK_LINKEA_OVERFLOW  0x1627
546 #define OBD_FAIL_LFSCK_BAD_NAME_HASH    0x1628
547 #define OBD_FAIL_LFSCK_LOST_MASTER_LMV  0x1629
548 #define OBD_FAIL_LFSCK_LOST_SLAVE_LMV   0x162a
549 #define OBD_FAIL_LFSCK_BAD_SLAVE_LMV    0x162b
550 #define OBD_FAIL_LFSCK_BAD_SLAVE_NAME   0x162c
551
552 #define OBD_FAIL_LFSCK_NOTIFY_NET       0x16f0
553 #define OBD_FAIL_LFSCK_QUERY_NET        0x16f1
554
555 /* UPDATE */
556 #define OBD_FAIL_OUT_UPDATE_NET         0x1700
557 #define OBD_FAIL_OUT_UPDATE_NET_REP     0x1701
558 #define OBD_FAIL_SPLIT_UPDATE_REC       0x1702
559 #define OBD_FAIL_LARGE_STRIPE           0x1703
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
627 extern void obd_update_maxusage(void);
628 extern __u64 obd_memory_max(void);
629
630 #else /* CONFIG_PROC_FS */
631
632 extern __u64 obd_alloc;
633
634 extern __u64 obd_max_alloc;
635
636 static inline void obd_memory_add(long size)
637 {
638         obd_alloc += size;
639         if (obd_alloc > obd_max_alloc)
640                 obd_max_alloc = obd_alloc;
641 }
642
643 static inline void obd_memory_sub(long size)
644 {
645         obd_alloc -= size;
646 }
647
648 #define obd_memory_sum() (obd_alloc)
649
650 #define obd_memory_max() (obd_max_alloc)
651
652 #endif /* !CONFIG_PROC_FS */
653
654 #define OBD_DEBUG_MEMUSAGE (1)
655
656 #if OBD_DEBUG_MEMUSAGE
657 #define OBD_ALLOC_POST(ptr, size, name)                                 \
658                 obd_memory_add(size);                                   \
659                 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",       \
660                        (int)(size), ptr)
661
662 #define OBD_FREE_PRE(ptr, size, name)                                   \
663         LASSERT(ptr);                                                   \
664         obd_memory_sub(size);                                           \
665         CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",               \
666                (int)(size), ptr);                                       \
667         POISON(ptr, 0x5a, size)
668
669 #else /* !OBD_DEBUG_MEMUSAGE */
670
671 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
672 #define OBD_FREE_PRE(ptr, size, name)   ((void)0)
673
674 #endif /* !OBD_DEBUG_MEMUSAGE */
675
676 #define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)                    \
677 do {                                                                          \
678         (ptr) = (cptab) == NULL ?                                             \
679                 kmalloc(size, flags | __GFP_ZERO) :                           \
680                 cfs_cpt_malloc(cptab, cpt, size, flags | __GFP_ZERO);         \
681         if (likely((ptr) != NULL))                                            \
682                 OBD_ALLOC_POST(ptr, size, "kmalloced");                       \
683 } while (0)
684
685 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                    \
686         __OBD_MALLOC_VERBOSE(ptr, NULL, 0, size, gfp_mask)
687
688 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_NOFS)
689 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
690 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
691 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
692
693 #define OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, gfp_mask)                    \
694         __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, gfp_mask)
695
696 #define OBD_CPT_ALLOC(ptr, cptab, cpt, size)                                  \
697         OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS)
698
699 #define OBD_CPT_ALLOC_PTR(ptr, cptab, cpt)                                    \
700         OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof *(ptr))
701
702 /* Direct use of __vmalloc() allows for protection flag specification
703  * (and particularly to not set __GFP_FS, which is likely to cause some
704  * deadlock situations in our code).
705  */
706 #define __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)                          \
707 do {                                                                          \
708         (ptr) = cptab == NULL ?                                               \
709                 __vmalloc(size, GFP_NOFS | __GFP_HIGHMEM | __GFP_ZERO,        \
710                           PAGE_KERNEL) :                                      \
711                 cfs_cpt_vzalloc(cptab, cpt, size);                            \
712         if (unlikely((ptr) == NULL)) {                                        \
713                 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",           \
714                        (int)(size));                                          \
715                 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
716                        obd_memory_sum(), atomic_read(&libcfs_kmemory));       \
717         } else {                                                              \
718                 OBD_ALLOC_POST(ptr, size, "vmalloced");                       \
719         }                                                                     \
720 } while(0)
721
722 #define OBD_VMALLOC(ptr, size)                                                \
723          __OBD_VMALLOC_VERBOSE(ptr, NULL, 0, size)
724 #define OBD_CPT_VMALLOC(ptr, cptab, cpt, size)                                \
725          __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)
726
727 #define OBD_ALLOC_LARGE(ptr, size)                                            \
728 do {                                                                          \
729         OBD_ALLOC_GFP(ptr, size, GFP_NOFS | __GFP_NOWARN);                    \
730         if (ptr == NULL)                                                      \
731                 OBD_VMALLOC(ptr, size);                                       \
732 } while (0)
733
734 #define OBD_CPT_ALLOC_LARGE(ptr, cptab, cpt, size)                            \
735 do {                                                                          \
736         OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS | __GFP_NOWARN);    \
737         if (ptr == NULL)                                                      \
738                 OBD_CPT_VMALLOC(ptr, cptab, cpt, size);                       \
739 } while (0)
740
741 #define OBD_FREE_LARGE(ptr, size) OBD_FREE(ptr, size)
742
743 #ifdef CONFIG_DEBUG_SLAB
744 #define POISON(ptr, c, s) do {} while (0)
745 #define POISON_PTR(ptr)  ((void)0)
746 #else
747 #define POISON(ptr, c, s) memset(ptr, c, s)
748 #define POISON_PTR(ptr)  (ptr) = (void *)0xdeadbeef
749 #endif
750
751 #ifdef POISON_BULK
752 #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_CACHE_SIZE);   \
753                                     kunmap(page); } while (0)
754 #else
755 #define POISON_PAGE(page, val) do { } while (0)
756 #endif
757
758 #define OBD_FREE(ptr, size)                                                   \
759 do {                                                                          \
760         if (is_vmalloc_addr(ptr)) {                                           \
761                 OBD_FREE_PRE(ptr, size, "vfreed");                            \
762                 vfree(ptr);                                                   \
763         } else {                                                              \
764                 OBD_FREE_PRE(ptr, size, "kfreed");                            \
765                 kfree(ptr);                                                   \
766         }                                                                     \
767         POISON_PTR(ptr);                                                      \
768 } while(0)
769
770 #define OBD_FREE_RCU(ptr, size, handle)                                       \
771 do {                                                                          \
772         struct portals_handle *__h = (handle);                                \
773                                                                               \
774         LASSERT(handle != NULL);                                              \
775         __h->h_cookie = (unsigned long)(ptr);                                 \
776         __h->h_size = (size);                                                 \
777         call_rcu(&__h->h_rcu, class_handle_free_cb);                          \
778         POISON_PTR(ptr);                                                      \
779 } while(0)
780
781 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
782  * HAVE A CTOR THAT DOES ANYTHING.  its work will be cleared here.  we'd
783  * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
784 #define OBD_SLAB_FREE_RTN0(ptr, slab)                                         \
785 ({                                                                            \
786         kmem_cache_free((slab), (ptr));                                    \
787         (ptr) = NULL;                                                         \
788         0;                                                                    \
789 })
790
791 #define __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, type)           \
792 do {                                                                          \
793         LASSERT(ergo((type) != GFP_ATOMIC, !in_interrupt()));         \
794         (ptr) = (cptab) == NULL ?                                             \
795                 kmem_cache_alloc(slab, type | __GFP_ZERO) :                   \
796                 cfs_mem_cache_cpt_alloc(slab, cptab, cpt, type | __GFP_ZERO); \
797         if (likely((ptr)))                                                    \
798                 OBD_ALLOC_POST(ptr, size, "slab-alloced");                    \
799 } while(0)
800
801 #define OBD_SLAB_ALLOC_GFP(ptr, slab, size, flags)                            \
802         __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, NULL, 0, size, flags)
803 #define OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, flags)            \
804         __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, flags)
805
806 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
807
808 #define OBD_SLAB_FREE(ptr, slab, size)                                        \
809 do {                                                                          \
810         OBD_FREE_PRE(ptr, size, "slab-freed");                                \
811         kmem_cache_free(slab, ptr);                                        \
812         POISON_PTR(ptr);                                                      \
813 } while(0)
814
815 #define OBD_SLAB_ALLOC(ptr, slab, size)                                       \
816         OBD_SLAB_ALLOC_GFP(ptr, slab, size, GFP_NOFS)
817
818 #define OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, size)                       \
819         OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, GFP_NOFS)
820
821 #define OBD_SLAB_ALLOC_PTR(ptr, slab)                                         \
822         OBD_SLAB_ALLOC(ptr, slab, sizeof *(ptr))
823
824 #define OBD_SLAB_CPT_ALLOC_PTR(ptr, slab, cptab, cpt)                         \
825         OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, sizeof *(ptr))
826
827 #define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, flags)                              \
828         OBD_SLAB_ALLOC_GFP(ptr, slab, sizeof *(ptr), flags)
829
830 #define OBD_SLAB_CPT_ALLOC_PTR_GFP(ptr, slab, cptab, cpt, flags)                      \
831         OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, sizeof *(ptr), flags)
832
833 #define OBD_SLAB_FREE_PTR(ptr, slab)                                          \
834         OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
835
836 #define KEY_IS(str) \
837         (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
838
839 #endif