1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
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.
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.
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.
27 #include <linux/config.h>
28 #include <linux/autoconf.h>
29 #include <linux/slab.h>
30 #include <linux/highmem.h>
32 #include <libcfs/kp30.h>
33 #include <linux/lustre_compat25.h>
35 /* global variables */
36 extern atomic_t obd_memory;
37 extern int obd_memmax;
38 extern unsigned int obd_fail_loc;
39 extern unsigned int obd_dump_on_timeout;
40 extern unsigned int obd_timeout;
41 extern unsigned int ldlm_timeout;
42 extern char obd_lustre_upcall[128];
43 extern unsigned int obd_sync_filter;
44 extern wait_queue_head_t obd_race_waitq;
46 #define OBD_FAIL_MDS 0x100
47 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
48 #define OBD_FAIL_MDS_GETATTR_NET 0x102
49 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
50 #define OBD_FAIL_MDS_READPAGE_NET 0x104
51 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
52 #define OBD_FAIL_MDS_SENDPAGE 0x106
53 #define OBD_FAIL_MDS_REINT_NET 0x107
54 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
55 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
56 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
57 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
58 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
59 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
60 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
61 #define OBD_FAIL_MDS_REINT_LINK 0x10f
62 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
63 #define OBD_FAIL_MDS_REINT_RENAME 0x111
64 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
65 #define OBD_FAIL_MDS_OPEN_NET 0x113
66 #define OBD_FAIL_MDS_OPEN_PACK 0x114
67 #define OBD_FAIL_MDS_CLOSE_NET 0x115
68 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
69 #define OBD_FAIL_MDS_CONNECT_NET 0x117
70 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
71 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
72 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
73 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
74 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
75 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
76 #define OBD_FAIL_MDS_STATFS_NET 0x11e
77 #define OBD_FAIL_MDS_GETATTR_LOCK_NET 0x11f
78 #define OBD_FAIL_MDS_PIN_NET 0x120
79 #define OBD_FAIL_MDS_UNPIN_NET 0x121
80 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122
81 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123
82 #define OBD_FAIL_MDS_SYNC_NET 0x124
83 #define OBD_FAIL_MDS_SYNC_PACK 0x125
84 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126
85 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127
86 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128
88 #define OBD_FAIL_OST 0x200
89 #define OBD_FAIL_OST_CONNECT_NET 0x201
90 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
91 #define OBD_FAIL_OST_GET_INFO_NET 0x203
92 #define OBD_FAIL_OST_CREATE_NET 0x204
93 #define OBD_FAIL_OST_DESTROY_NET 0x205
94 #define OBD_FAIL_OST_GETATTR_NET 0x206
95 #define OBD_FAIL_OST_SETATTR_NET 0x207
96 #define OBD_FAIL_OST_OPEN_NET 0x208
97 #define OBD_FAIL_OST_CLOSE_NET 0x209
98 #define OBD_FAIL_OST_BRW_NET 0x20a
99 #define OBD_FAIL_OST_PUNCH_NET 0x20b
100 #define OBD_FAIL_OST_STATFS_NET 0x20c
101 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
102 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
103 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
104 #define OBD_FAIL_OST_SYNC_NET 0x210
105 #define OBD_FAIL_OST_ALL_REPLY_NET 0x211
106 #define OBD_FAIL_OST_ALL_REQUESTS_NET 0x212
107 #define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
108 #define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
109 #define OBD_FAIL_OST_ENOSPC 0x215
110 #define OBD_FAIL_OST_EROFS 0x216
113 #define OBD_FAIL_LDLM 0x300
114 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
115 #define OBD_FAIL_LDLM_ENQUEUE 0x302
116 #define OBD_FAIL_LDLM_CONVERT 0x303
117 #define OBD_FAIL_LDLM_CANCEL 0x304
118 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
119 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
120 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307
121 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
122 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
123 #define OBD_FAIL_LDLM_CREATE_RESOURCE 0x30a
124 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED 0x30b
125 #define OBD_FAIL_LDLM_REPLY 0x30c
128 #define OBD_FAIL_OSC 0x400
129 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
130 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
131 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
132 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
133 #define OBD_FAIL_OSC_MATCH 0x405
135 #define OBD_FAIL_PTLRPC 0x500
136 #define OBD_FAIL_PTLRPC_ACK 0x501
137 #define OBD_FAIL_PTLRPC_RQBD 0x502
138 #define OBD_FAIL_PTLRPC_BULK_GET_NET 0x503
139 #define OBD_FAIL_PTLRPC_BULK_PUT_NET 0x504
141 #define OBD_FAIL_OBD_PING_NET 0x600
142 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
143 #define OBD_FAIL_OBD_LOGD_NET 0x602
145 #define OBD_FAIL_TGT_REPLY_NET 0x700
146 #define OBD_FAIL_TGT_CONN_RACE 0x701
148 #define OBD_FAIL_SVCSEC_ACCEPT_BEG 0x750
149 #define OBD_FAIL_SVCSEC_ACCEPT_END 0x751
150 #define OBD_FAIL_SVCSEC_WRAP_BEG 0x752
151 #define OBD_FAIL_SVCSEC_WRAP_END 0x753
152 #define OBD_FAIL_SVCGSS_ERR_NOTIFY 0x760
153 #define OBD_FAIL_SVCGSS_INIT_REQ 0x780
154 #define OBD_FAIL_SVCGSS_INIT_REP 0x781
156 /* preparation for a more advanced failure testbed (not functional yet) */
157 #define OBD_FAIL_MASK_SYS 0x0000FF00
158 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
159 #define OBD_FAIL_ONCE 0x80000000
160 #define OBD_FAILED 0x40000000
161 #define OBD_FAIL_MDS_ALL_NET 0x01000000
162 #define OBD_FAIL_OST_ALL_NET 0x02000000
164 #define OBD_FAIL_CHECK(id) (((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
165 ((id) & OBD_FAIL_MASK_LOC)) && \
166 ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!= \
167 (OBD_FAILED | OBD_FAIL_ONCE)))
169 #define OBD_FAIL_CHECK_ONCE(id) \
171 if (OBD_FAIL_CHECK(id)) { \
172 CERROR("obd_fail_loc=%x\n", id); \
173 obd_fail_loc |= OBD_FAILED; \
174 if ((id) & OBD_FAIL_ONCE) \
175 obd_fail_loc |= OBD_FAIL_ONCE; \
181 #define OBD_FAIL_RETURN(id, ret) \
183 if (OBD_FAIL_CHECK_ONCE(id)) { \
188 #define OBD_FAIL_TIMEOUT(id, secs) \
190 if (OBD_FAIL_CHECK_ONCE(id)) { \
191 CERROR("obd_fail_timeout id %x sleeping for %d secs\n", \
193 set_current_state(TASK_UNINTERRUPTIBLE); \
194 schedule_timeout((secs) * HZ); \
195 set_current_state(TASK_RUNNING); \
196 CERROR("obd_fail_timeout id %x awake\n", (id)); \
201 /* The idea here is to synchronise two threads to force a race. The
202 * first thread that calls this with a matching fail_loc is put to
203 * sleep. The next thread that calls with the same fail_loc wakes up
204 * the first and continues. */
205 #define OBD_RACE(id) \
207 if (OBD_FAIL_CHECK_ONCE(id)) { \
208 CERROR("obd_race id %x sleeping\n", (id)); \
209 sleep_on(&obd_race_waitq); \
210 CERROR("obd_fail_race id %x awake\n", (id)); \
211 } else if ((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
212 ((id) & OBD_FAIL_MASK_LOC)) { \
213 wake_up(&obd_race_waitq); \
217 /* sigh. an expedient fix until OBD_RACE is fixed up */
218 #define OBD_RACE(foo) LBUG()
221 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
224 # include <linux/types.h>
225 # include <linux/blkdev.h>
228 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
229 # define BDEVNAME_DECLARE_STORAGE(foo) char foo[BDEVNAME_SIZE]
230 # define ll_bdevname(SB, STORAGE) __bdevname(kdev_t_to_nr(SB->s_dev), STORAGE)
231 # define ll_lock_kernel lock_kernel()
232 # define ll_sbdev(SB) ((SB)->s_bdev)
233 void dev_set_rdonly(struct block_device *, int);
235 # define BDEVNAME_DECLARE_STORAGE(foo) char __unused_##foo
236 # define ll_sbdev(SB) (kdev_t_to_nr((SB)->s_dev))
237 # define ll_bdevname(SB,STORAGE) ((void)__unused_##STORAGE,bdevname(ll_sbdev(SB)))
238 # define ll_lock_kernel
239 void dev_set_rdonly(kdev_t, int);
242 void dev_clear_rdonly(int);
244 static inline void OBD_FAIL_WRITE(int id, struct super_block *sb)
246 if (OBD_FAIL_CHECK(id)) {
247 BDEVNAME_DECLARE_STORAGE(tmp);
248 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
249 id, ll_bdevname(sb, tmp));
250 dev_set_rdonly(ll_sbdev(sb), 2);
251 /* We set FAIL_ONCE because we never "un-fail" a device */
252 obd_fail_loc |= OBD_FAILED | OBD_FAIL_ONCE;
255 #else /* !__KERNEL__ */
256 # define LTIME_S(time) (time)
257 /* for obd_class.h */
259 # define ERR_PTR(a) ((void *)(a))
261 #endif /* __KERNEL__ */
263 extern atomic_t portal_kmemory;
265 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
267 (ptr) = kmalloc(size, (gfp_mask)); \
268 if ((ptr) == NULL) { \
269 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
270 (int)(size), __FILE__, __LINE__); \
271 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
272 atomic_read(&obd_memory), atomic_read(&portal_kmemory));\
274 memset(ptr, 0, size); \
275 atomic_add(size, &obd_memory); \
276 if (atomic_read(&obd_memory) > obd_memmax) \
277 obd_memmax = atomic_read(&obd_memory); \
278 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d)\n", \
279 (int)(size), ptr, atomic_read(&obd_memory)); \
284 # define OBD_GFP_MASK GFP_NOFS
287 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_GFP_MASK)
288 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
291 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
293 # define OBD_VMALLOC(ptr, size) \
295 (ptr) = vmalloc(size); \
296 if ((ptr) == NULL) { \
297 CERROR("vmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
298 (int)(size), __FILE__, __LINE__); \
299 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
300 atomic_read(&obd_memory), atomic_read(&portal_kmemory));\
302 memset(ptr, 0, size); \
303 atomic_add(size, &obd_memory); \
304 if (atomic_read(&obd_memory) > obd_memmax) \
305 obd_memmax = atomic_read(&obd_memory); \
306 CDEBUG(D_MALLOC, "vmalloced '" #ptr "': %d at %p (tot %d)\n", \
307 (int)(size), ptr, atomic_read(&obd_memory)); \
312 #ifdef CONFIG_DEBUG_SLAB
313 #define POISON(ptr, c, s) do {} while (0)
315 #define POISON(ptr, c, s) memset(ptr, c, s)
319 #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_SIZE); \
320 kunmap(page); } while (0)
322 #define POISON_PAGE(page, val) do { } while (0)
325 #define OBD_FREE(ptr, size) \
328 atomic_sub(size, &obd_memory); \
329 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \
330 (int)(size), ptr, atomic_read(&obd_memory)); \
331 POISON(ptr, 0x5a, size); \
333 (ptr) = (void *)0xdeadbeef; \
337 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
339 # define OBD_VFREE(ptr, size) \
342 atomic_sub(size, &obd_memory); \
343 CDEBUG(D_MALLOC, "vfreed '" #ptr "': %d at %p (tot %d).\n", \
344 (int)(size), ptr, atomic_read(&obd_memory)); \
345 POISON(ptr, 0x5a, size); \
347 (ptr) = (void *)0xdeadbeef; \
351 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
352 * HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
353 * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
354 #define OBD_SLAB_ALLOC(ptr, slab, type, size) \
356 LASSERT(!in_interrupt()); \
357 (ptr) = kmem_cache_alloc(slab, (type)); \
358 if ((ptr) == NULL) { \
359 CERROR("slab-alloc of '"#ptr"' (%d bytes) failed at %s:%d\n", \
360 (int)(size), __FILE__, __LINE__); \
361 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
362 atomic_read(&obd_memory), atomic_read(&portal_kmemory));\
364 memset(ptr, 0, size); \
365 atomic_add(size, &obd_memory); \
366 if (atomic_read(&obd_memory) > obd_memmax) \
367 obd_memmax = atomic_read(&obd_memory); \
368 CDEBUG(D_MALLOC, "slab-alloced '"#ptr"': %d at %p (tot %d)\n",\
369 (int)(size), ptr, atomic_read(&obd_memory)); \
373 #define OBD_SLAB_FREE(ptr, slab, size) \
376 CDEBUG(D_MALLOC, "slab-freed '" #ptr "': %d at %p (tot %d).\n", \
377 (int)(size), ptr, atomic_read(&obd_memory)); \
378 atomic_sub(size, &obd_memory); \
379 POISON(ptr, 0x5a, size); \
380 kmem_cache_free(slab, ptr); \
381 (ptr) = (void *)0xdeadbeef; \