lustre/include/linux/obd_support.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  Copyright (C) 2001, 2002 Cluster File Systems, Inc.
   5  *
   6  *   This file is part of Lustre, http://www.lustre.org.
   7  *
   8  *   Lustre is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Lustre is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Lustre; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  */
  22
  23 #ifndef _OBD_SUPPORT
  24 #define _OBD_SUPPORT
  25
  26 #ifdef __KERNEL__
  27 #include <linux/config.h>
  28 #include <linux/autoconf.h>
  29 #include <linux/slab.h>
  30 #include <linux/highmem.h>
  31 #include <linux/buffer_head.h>
  32 #endif
  33 #include <libcfs/kp30.h>
  34 #include <linux/lustre_compat25.h>
  35
  36 /* global variables */
  37 extern int obd_memmax;
  38 extern atomic_t obd_memory;
  39
  40 extern unsigned int obd_fail_loc;
  41 extern unsigned int obd_timeout;
  42 extern unsigned int ldlm_timeout;
  43 extern char obd_lustre_upcall[128];
  44 extern unsigned int obd_sync_filter;
  45 extern unsigned int obd_dump_on_timeout;
  46 extern wait_queue_head_t obd_race_waitq;
  47
  48 #define OBD_FAIL_MDS                     0x100
  49 #define OBD_FAIL_MDS_HANDLE_UNPACK       0x101
  50 #define OBD_FAIL_MDS_GETATTR_NET         0x102
  51 #define OBD_FAIL_MDS_GETATTR_PACK        0x103
  52 #define OBD_FAIL_MDS_READPAGE_NET        0x104
  53 #define OBD_FAIL_MDS_READPAGE_PACK       0x105
  54 #define OBD_FAIL_MDS_SENDPAGE            0x106
  55 #define OBD_FAIL_MDS_REINT_NET           0x107
  56 #define OBD_FAIL_MDS_REINT_UNPACK        0x108
  57 #define OBD_FAIL_MDS_REINT_SETATTR       0x109
  58 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
  59 #define OBD_FAIL_MDS_REINT_CREATE        0x10b
  60 #define OBD_FAIL_MDS_REINT_CREATE_WRITE  0x10c
  61 #define OBD_FAIL_MDS_REINT_UNLINK        0x10d
  62 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE  0x10e
  63 #define OBD_FAIL_MDS_REINT_LINK          0x10f
  64 #define OBD_FAIL_MDS_REINT_LINK_WRITE    0x110
  65 #define OBD_FAIL_MDS_REINT_RENAME        0x111
  66 #define OBD_FAIL_MDS_REINT_RENAME_WRITE  0x112
  67 #define OBD_FAIL_MDS_OPEN_NET            0x113
  68 #define OBD_FAIL_MDS_OPEN_PACK           0x114
  69 #define OBD_FAIL_MDS_CLOSE_NET           0x115
  70 #define OBD_FAIL_MDS_CLOSE_PACK          0x116
  71 #define OBD_FAIL_MDS_CONNECT_NET         0x117
  72 #define OBD_FAIL_MDS_CONNECT_PACK        0x118
  73 #define OBD_FAIL_MDS_REINT_NET_REP       0x119
  74 #define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
  75 #define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
  76 #define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
  77 #define OBD_FAIL_MDS_STATFS_PACK         0x11d
  78 #define OBD_FAIL_MDS_STATFS_NET          0x11e
  79 #define OBD_FAIL_MDS_GETATTR_LOCK_NET    0x11f
  80 #define OBD_FAIL_MDS_PIN_NET             0x120
  81 #define OBD_FAIL_MDS_UNPIN_NET           0x121
  82 #define OBD_FAIL_MDS_ALL_REPLY_NET       0x122
  83 #define OBD_FAIL_MDS_ALL_REQUEST_NET     0x123
  84 #define OBD_FAIL_MDS_SYNC_NET            0x124
  85 #define OBD_FAIL_MDS_SYNC_PACK           0x125
  86 #define OBD_FAIL_MDS_DONE_WRITING_NET    0x126
  87 #define OBD_FAIL_MDS_DONE_WRITING_PACK   0x127
  88 #define OBD_FAIL_MDS_ALLOC_OBDO          0x128
  89 #define OBD_FAIL_MDS_PAUSE_OPEN          0x129
  90 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP    0x12a
  91 #define OBD_FAIL_MDS_OPEN_CREATE         0x12b
  92
  93 #define OBD_FAIL_OST                     0x200
  94 #define OBD_FAIL_OST_CONNECT_NET         0x201
  95 #define OBD_FAIL_OST_DISCONNECT_NET      0x202
  96 #define OBD_FAIL_OST_GET_INFO_NET        0x203
  97 #define OBD_FAIL_OST_CREATE_NET          0x204
  98 #define OBD_FAIL_OST_DESTROY_NET         0x205
  99 #define OBD_FAIL_OST_GETATTR_NET         0x206
 100 #define OBD_FAIL_OST_SETATTR_NET         0x207
 101 #define OBD_FAIL_OST_OPEN_NET            0x208
 102 #define OBD_FAIL_OST_CLOSE_NET           0x209
 103 #define OBD_FAIL_OST_BRW_NET             0x20a
 104 #define OBD_FAIL_OST_PUNCH_NET           0x20b
 105 #define OBD_FAIL_OST_STATFS_NET          0x20c
 106 #define OBD_FAIL_OST_HANDLE_UNPACK       0x20d
 107 #define OBD_FAIL_OST_BRW_WRITE_BULK      0x20e
 108 #define OBD_FAIL_OST_BRW_READ_BULK       0x20f
 109 #define OBD_FAIL_OST_SYNC_NET            0x210
 110 #define OBD_FAIL_OST_ALL_REPLY_NET       0x211
 111 #define OBD_FAIL_OST_ALL_REQUESTS_NET    0x212
 112 #define OBD_FAIL_OST_LDLM_REPLY_NET      0x213
 113 #define OBD_FAIL_OST_BRW_PAUSE_BULK      0x214
 114 #define OBD_FAIL_OST_ENOSPC              0x215
 115 #define OBD_FAIL_OST_EROFS               0x216
 116
 117
 118 #define OBD_FAIL_LDLM                    0x300
 119 #define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
 120 #define OBD_FAIL_LDLM_ENQUEUE            0x302
 121 #define OBD_FAIL_LDLM_CONVERT            0x303
 122 #define OBD_FAIL_LDLM_CANCEL             0x304
 123 #define OBD_FAIL_LDLM_BL_CALLBACK        0x305
 124 #define OBD_FAIL_LDLM_CP_CALLBACK        0x306
 125 #define OBD_FAIL_LDLM_GL_CALLBACK        0x307
 126 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
 127 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
 128 #define OBD_FAIL_LDLM_CREATE_RESOURCE    0x30a
 129 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED    0x30b
 130 #define OBD_FAIL_LDLM_REPLY              0x30c
 131
 132
 133 #define OBD_FAIL_OSC                     0x400
 134 #define OBD_FAIL_OSC_BRW_READ_BULK       0x401
 135 #define OBD_FAIL_OSC_BRW_WRITE_BULK      0x402
 136 #define OBD_FAIL_OSC_LOCK_BL_AST         0x403
 137 #define OBD_FAIL_OSC_LOCK_CP_AST         0x404
 138 #define OBD_FAIL_OSC_MATCH               0x405
 139
 140 #define OBD_FAIL_PTLRPC                  0x500
 141 #define OBD_FAIL_PTLRPC_ACK              0x501
 142 #define OBD_FAIL_PTLRPC_RQBD             0x502
 143 #define OBD_FAIL_PTLRPC_BULK_GET_NET     0x503
 144 #define OBD_FAIL_PTLRPC_BULK_PUT_NET     0x504
 145
 146 #define OBD_FAIL_OBD_PING_NET            0x600
 147 #define OBD_FAIL_OBD_LOG_CANCEL_NET      0x601
 148 #define OBD_FAIL_OBD_LOGD_NET            0x602
 149
 150 #define OBD_FAIL_TGT_REPLY_NET           0x700
 151 #define OBD_FAIL_TGT_CONN_RACE           0x701
 152
 153 #define OBD_FAIL_SVCSEC_ACCEPT_BEG       0x750
 154 #define OBD_FAIL_SVCSEC_ACCEPT_END       0x751
 155 #define OBD_FAIL_SVCSEC_WRAP_BEG         0x752
 156 #define OBD_FAIL_SVCSEC_WRAP_END         0x753
 157 #define OBD_FAIL_SVCGSS_ERR_NOTIFY       0x760
 158 #define OBD_FAIL_SVCGSS_INIT_REQ         0x780
 159 #define OBD_FAIL_SVCGSS_INIT_REP         0x781
 160
 161 #define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
 162
 163 /* preparation for a more advanced failure testbed (not functional yet) */
 164 #define OBD_FAIL_MASK_SYS    0x0000FF00
 165 #define OBD_FAIL_MASK_LOC    (0x000000FF | OBD_FAIL_MASK_SYS)
 166 #define OBD_FAIL_ONCE        0x80000000
 167 #define OBD_FAILED           0x40000000
 168 #define OBD_FAIL_MDS_ALL_NET 0x01000000
 169 #define OBD_FAIL_OST_ALL_NET 0x02000000
 170
 171 #define OBD_FAIL_CHECK(id)   (((obd_fail_loc & OBD_FAIL_MASK_LOC) ==           \
 172                               ((id) & OBD_FAIL_MASK_LOC)) &&                   \
 173                               ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!= \
 174                                 (OBD_FAILED | OBD_FAIL_ONCE)))
 175
 176 #define OBD_FAIL_CHECK_ONCE(id)                                              \
 177 ({      int _ret_ = 0;                                                       \
 178         if (OBD_FAIL_CHECK(id)) {                                            \
 179                 CERROR("obd_fail_loc=%x\n", id);                             \
 180                 obd_fail_loc |= OBD_FAILED;                                  \
 181                 if ((id) & OBD_FAIL_ONCE)                                    \
 182                         obd_fail_loc |= OBD_FAIL_ONCE;                       \
 183                 _ret_ = 1;                                                   \
 184         }                                                                    \
 185         _ret_;                                                               \
 186 })
 187
 188 #define OBD_FAIL_RETURN(id, ret)                                             \
 189 do {                                                                         \
 190         if (OBD_FAIL_CHECK_ONCE(id)) {                                       \
 191                 RETURN(ret);                                                 \
 192         }                                                                    \
 193 } while(0)
 194
 195 #define OBD_FAIL_GOTO(id, label, ret)                                        \
 196 do {                                                                         \
 197         if (OBD_FAIL_CHECK_ONCE(id)) {                                       \
 198                 GOTO(label, (ret));                                          \
 199         }                                                                    \
 200 } while(0)
 201
 202 #define OBD_FAIL_TIMEOUT(id, secs)                                           \
 203 do {                                                                         \
 204         if  (OBD_FAIL_CHECK_ONCE(id)) {                                      \
 205                CERROR("obd_fail_timeout id %x sleeping for %d secs\n",       \
 206                         (id), (secs));                                       \
 207                 set_current_state(TASK_UNINTERRUPTIBLE);                     \
 208                 schedule_timeout((secs) * HZ);                               \
 209                 set_current_state(TASK_RUNNING);                             \
 210                 CERROR("obd_fail_timeout id %x awake\n", (id));              \
 211        }                                                                     \
 212 } while(0)
 213
 214 #ifdef __KERNEL__
 215 /* The idea here is to synchronise two threads to force a race. The
 216  * first thread that calls this with a matching fail_loc is put to
 217  * sleep. The next thread that calls with the same fail_loc wakes up
 218  * the first and continues. */
 219 #define OBD_RACE(id)                                            \
 220 do {                                                            \
 221         if  (OBD_FAIL_CHECK_ONCE(id)) {                         \
 222                 CERROR("obd_race id %x sleeping\n", (id));      \
 223                 sleep_on(&obd_race_waitq);                      \
 224                 CERROR("obd_fail_race id %x awake\n", (id));    \
 225         } else if ((obd_fail_loc & OBD_FAIL_MASK_LOC) ==        \
 226                     ((id) & OBD_FAIL_MASK_LOC)) {               \
 227                 wake_up(&obd_race_waitq);                       \
 228         }                                                       \
 229 } while(0)
 230 #else
 231 /* sigh.  an expedient fix until OBD_RACE is fixed up */
 232 #define OBD_RACE(foo) LBUG()
 233 #endif
 234
 235 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
 236
 237 #ifdef __KERNEL__
 238 # include <linux/types.h>
 239 # include <linux/blkdev.h>
 240
 241
 242 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 243 #  define BDEVNAME_DECLARE_STORAGE(foo) char foo[BDEVNAME_SIZE]
 244 #  define ll_bdevname(SB, STORAGE) __bdevname(kdev_t_to_nr(SB->s_dev), STORAGE)
 245 #  define ll_lock_kernel lock_kernel()
 246 #  define ll_sbdev(SB)    ((SB)->s_bdev)
 247 #  define ll_sbdev_type      struct block_device *
 248 #  define ll_sbdev_sync      fsync_bdev
 249 # else
 250 #  define BDEVNAME_DECLARE_STORAGE(foo) char __unused_##foo
 251 #  define ll_sbdev(SB)    (kdev_t_to_nr((SB)->s_dev))
 252 #  define ll_sbdev_type      kdev_t
 253 #  define ll_sbdev_sync      fsync_dev
 254 #  define ll_bdevname(SB,STORAGE) ((void)__unused_##STORAGE,bdevname(ll_sbdev(SB)))
 255 #  define ll_lock_kernel
 256 # endif
 257
 258 #ifdef HAVE_OLD_DEV_SET_RDONLY
 259   void dev_set_rdonly(ll_sbdev_type dev, int no_write);
 260   void dev_clear_rdonly(int no_write);
 261 #else
 262   void dev_set_rdonly(ll_sbdev_type dev);
 263   void dev_clear_rdonly(ll_sbdev_type dev);
 264 #endif
 265 int dev_check_rdonly(ll_sbdev_type dev);
 266 #define ll_check_rdonly(dev) dev_check_rdonly(dev)
 267
 268 static inline void ll_set_rdonly(ll_sbdev_type dev)
 269 {
 270         CDEBUG(D_IOCTL | D_HA, "set dev %ld rdonly\n", (long)dev);
 271         ll_sbdev_sync(dev);
 272 #ifdef HAVE_OLD_DEV_SET_RDONLY
 273         dev_set_rdonly(dev, 2);
 274 #else
 275         dev_set_rdonly(dev);
 276 #endif
 277 }
 278
 279 static inline void ll_clear_rdonly(ll_sbdev_type dev)
 280 {
 281         CDEBUG(D_IOCTL | D_HA, "unset dev %ld rdonly\n", (long)dev);
 282         if (ll_check_rdonly(dev)) {
 283                 ll_sbdev_sync(dev);
 284 #ifdef HAVE_OLD_DEV_SET_RDONLY
 285                 dev_clear_rdonly(2);
 286 #else
 287                 dev_clear_rdonly(dev);
 288 #endif
 289         }
 290 }
 291
 292 static inline void OBD_FAIL_WRITE(int id, struct super_block *sb)
 293 {
 294         if (OBD_FAIL_CHECK(id)) {
 295                 BDEVNAME_DECLARE_STORAGE(tmp);
 296                 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
 297                        id, ll_bdevname(sb, tmp));
 298                 ll_set_rdonly(ll_sbdev(sb));
 299                 /* We set FAIL_ONCE because we never "un-fail" a device */
 300                 obd_fail_loc |= OBD_FAILED | OBD_FAIL_ONCE;
 301         }
 302 }
 303 #else /* !__KERNEL__ */
 304 # define LTIME_S(time) (time)
 305 /* for obd_class.h */
 306 # ifndef ERR_PTR
 307 #  define ERR_PTR(a) ((void *)(a))
 308 # endif
 309 #endif  /* __KERNEL__ */
 310
 311 extern atomic_t portal_kmemory;
 312
 313 #if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
 314 #define MEM_LOC_LEN 128
 315
 316 struct mtrack {
 317         struct hlist_node m_hash;
 318         char m_loc[MEM_LOC_LEN];
 319         void *m_ptr;
 320         int m_size;
 321 };
 322
 323 void lvfs_memdbg_insert(struct mtrack *mt);
 324 void lvfs_memdbg_remove(struct mtrack *mt);
 325 struct mtrack *lvfs_memdbg_find(void *ptr);
 326
 327 int lvfs_memdbg_check_insert(struct mtrack *mt);
 328 struct mtrack *lvfs_memdbg_check_remove(void *ptr);
 329
 330 static inline struct mtrack *
 331 __new_mtrack(void *ptr, int size,
 332              char *file, int line)
 333 {
 334         struct mtrack *mt;
 335
 336         mt = kmalloc(sizeof(*mt), GFP_KERNEL);
 337         if (!mt)
 338                 return NULL;
 339
 340         snprintf(mt->m_loc, sizeof(mt->m_loc) - 1,
 341                  "%s:%d", file, line);
 342
 343         mt->m_size = size;
 344         mt->m_ptr = ptr;
 345         return mt;
 346 }
 347
 348 static inline void
 349 __free_mtrack(struct mtrack *mt)
 350 {
 351         kfree(mt);
 352 }
 353
 354 static inline int
 355 __get_mtrack(void *ptr, int size,
 356              char *file, int line)
 357 {
 358         struct mtrack *mt;
 359
 360         mt = __new_mtrack(ptr, size, file, line);
 361         if (!mt) {
 362                 CWARN("can't allocate new memory track\n");
 363                 return 0;
 364         }
 365
 366         if (!lvfs_memdbg_check_insert(mt))
 367                 __free_mtrack(mt);
 368
 369         return 1;
 370 }
 371
 372 static inline int
 373 __put_mtrack(void *ptr, int size,
 374              char *file, int line)
 375 {
 376         struct mtrack *mt;
 377
 378         if (!(mt = lvfs_memdbg_check_remove(ptr))) {
 379                 CWARN("ptr 0x%p is not allocated. Attempt to free "
 380                       "not allocated memory at %s:%d\n", ptr,
 381                       file, line);
 382                 return 0;
 383         } else {
 384                 if (mt->m_size != size) {
 385                         CWARN("freeing memory chunk of different size "
 386                               "than allocated (%d != %d) at %s:%d\n",
 387                               mt->m_size, size, file, line);
 388                 }
 389                 __free_mtrack(mt);
 390                 return 1;
 391         }
 392 }
 393
 394 #define get_mtrack(ptr, size, file, line)                                            \
 395         __get_mtrack((ptr), (size), (file), (line))
 396
 397 #define put_mtrack(ptr, size, file, line)                                            \
 398         __put_mtrack((ptr), (size), (file), (line))
 399
 400 #else /* !CONFIG_DEBUG_MEMORY */
 401
 402 #define get_mtrack(ptr, size, file, line)                                            \
 403         do {} while (0)
 404
 405 #define put_mtrack(ptr, size, file, line)                                            \
 406         do {} while (0)
 407 #endif /* !CONFIG_DEBUG_MEMORY */
 408
 409 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                           \
 410 do {                                                                                 \
 411         (ptr) = kmalloc(size, (gfp_mask));                                           \
 412         if ((ptr) == NULL) {                                                         \
 413                 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n",         \
 414                        (int)(size), __FILE__, __LINE__);                             \
 415                 CERROR("%d total bytes allocated by Lustre, %d by Portals\n",        \
 416                        atomic_read(&obd_memory), atomic_read(&portal_kmemory));      \
 417         } else {                                                                     \
 418                 memset(ptr, 0, size);                                                \
 419                 atomic_add(size, &obd_memory);                                       \
 420                 if (atomic_read(&obd_memory) > obd_memmax)                           \
 421                         obd_memmax = atomic_read(&obd_memory);                       \
 422                 get_mtrack((ptr), (size), __FILE__, __LINE__);                       \
 423                 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d)\n",        \
 424                        (int)(size), (ptr), atomic_read(&obd_memory));                \
 425         }                                                                            \
 426 } while (0)
 427
 428 #ifndef OBD_GFP_MASK
 429 # define OBD_GFP_MASK GFP_NOFS
 430 #endif
 431
 432 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_GFP_MASK)
 433 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
 434
 435 #ifdef __arch_um__
 436 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
 437 #else
 438 # define OBD_VMALLOC(ptr, size)                                                      \
 439 do {                                                                                 \
 440         (ptr) = vmalloc(size);                                                       \
 441         if ((ptr) == NULL) {                                                         \
 442                 CERROR("vmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n",         \
 443                        (int)(size), __FILE__, __LINE__);                             \
 444                 CERROR("%d total bytes allocated by Lustre, %d by Portals\n",        \
 445                        atomic_read(&obd_memory), atomic_read(&portal_kmemory));      \
 446         } else {                                                                     \
 447                 memset(ptr, 0, size);                                                \
 448                 atomic_add(size, &obd_memory);                                       \
 449                 if (atomic_read(&obd_memory) > obd_memmax)                           \
 450                         obd_memmax = atomic_read(&obd_memory);                       \
 451                 get_mtrack((ptr), (size), __FILE__, __LINE__);                       \
 452                 CDEBUG(D_MALLOC, "vmalloced '" #ptr "': %d at %p (tot %d)\n",        \
 453                        (int)(size), ptr, atomic_read(&obd_memory));                  \
 454         }                                                                            \
 455 } while (0)
 456 #endif
 457
 458 #ifdef CONFIG_DEBUG_SLAB
 459 #define POISON(ptr, c, s) do {} while (0)
 460 #else
 461 #define POISON(ptr, c, s) memset(ptr, c, s)
 462 #endif
 463
 464 #if POISON_BULK
 465 #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_SIZE);              \
 466                                     kunmap(page); } while (0)
 467 #else
 468 #define POISON_PAGE(page, val) do { } while (0)
 469 #endif
 470
 471 #define OBD_FREE(ptr, size)                                                          \
 472 do {                                                                                 \
 473         LASSERT(ptr);                                                                \
 474         put_mtrack((ptr), (size), __FILE__, __LINE__);                               \
 475         atomic_sub(size, &obd_memory);                                               \
 476         CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n",                  \
 477                (int)(size), ptr, atomic_read(&obd_memory));                          \
 478         POISON(ptr, 0x5a, size);                                                     \
 479         kfree(ptr);                                                                  \
 480         (ptr) = (void *)0xdeadbeef;                                                  \
 481 } while (0)
 482
 483 #ifdef __arch_um__
 484 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
 485 #else
 486 # define OBD_VFREE(ptr, size)                                                        \
 487 do {                                                                                 \
 488         LASSERT(ptr);                                                                \
 489         put_mtrack((ptr), (size), __FILE__, __LINE__);                               \
 490         atomic_sub(size, &obd_memory);                                               \
 491         CDEBUG(D_MALLOC, "vfreed '" #ptr "': %d at %p (tot %d).\n",                  \
 492                (int)(size), ptr, atomic_read(&obd_memory));                          \
 493         POISON(ptr, 0x5a, size);                                                     \
 494         vfree(ptr);                                                                  \
 495         (ptr) = (void *)0xdeadbeef;                                                  \
 496 } while (0)
 497 #endif
 498
 499 /*
 500  * we memset() the slab object to 0 when allocation succeeds, so DO NOT HAVE A
 501  * CTOR THAT DOES ANYTHING. Its work will be cleared here. We'd love to assert
 502  * on that, but slab.c keeps kmem_cache_s all to itself.
 503  */
 504 #define OBD_SLAB_ALLOC(ptr, slab, type, size)                                         \
 505 do {                                                                                  \
 506         LASSERT(!in_interrupt());                                                     \
 507         (ptr) = kmem_cache_alloc(slab, (type));                                       \
 508         if ((ptr) == NULL) {                                                          \
 509                 CERROR("slab-alloc of '"#ptr"' (%d bytes) failed at %s:%d\n",         \
 510                        (int)(size), __FILE__, __LINE__);                              \
 511                 CERROR("%d total bytes allocated by Lustre, %d by Portals\n",         \
 512                        atomic_read(&obd_memory), atomic_read(&portal_kmemory));       \
 513         } else {                                                                      \
 514                 memset(ptr, 0, size);                                                 \
 515                 atomic_add(size, &obd_memory);                                        \
 516                 if (atomic_read(&obd_memory) > obd_memmax)                            \
 517                         obd_memmax = atomic_read(&obd_memory);                        \
 518                 get_mtrack((ptr), (size), __FILE__, __LINE__);                        \
 519                 CDEBUG(D_MALLOC, "slab-alloced '"#ptr"': %d at %p (tot %d)\n",        \
 520                        (int)(size), ptr, atomic_read(&obd_memory));                   \
 521         }                                                                             \
 522 } while (0)
 523
 524 #define OBD_SLAB_FREE(ptr, slab, size)                                                \
 525 do {                                                                                  \
 526         LASSERT(ptr);                                                                 \
 527         CDEBUG(D_MALLOC, "slab-freed '" #ptr "': %d at %p (tot %d).\n",               \
 528                (int)(size), ptr, atomic_read(&obd_memory));                           \
 529         put_mtrack((ptr), (size), __FILE__, __LINE__);                                \
 530         atomic_sub(size, &obd_memory);                                                \
 531         POISON(ptr, 0x5a, size);                                                      \
 532         kmem_cache_free(slab, ptr);                                                   \
 533         (ptr) = (void *)0xdeadbeef;                                                   \
 534 } while (0)
 535
 536 #endif