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 <linux/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_timeout;
40 extern char obd_lustre_upcall[128];
41 extern unsigned int obd_sync_filter;
43 #define OBD_FAIL_MDS 0x100
44 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
45 #define OBD_FAIL_MDS_GETATTR_NET 0x102
46 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
47 #define OBD_FAIL_MDS_READPAGE_NET 0x104
48 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
49 #define OBD_FAIL_MDS_SENDPAGE 0x106
50 #define OBD_FAIL_MDS_REINT_NET 0x107
51 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
52 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
53 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
54 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
55 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
56 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
57 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
58 #define OBD_FAIL_MDS_REINT_LINK 0x10f
59 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
60 #define OBD_FAIL_MDS_REINT_RENAME 0x111
61 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
62 #define OBD_FAIL_MDS_OPEN_NET 0x113
63 #define OBD_FAIL_MDS_OPEN_PACK 0x114
64 #define OBD_FAIL_MDS_CLOSE_NET 0x115
65 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
66 #define OBD_FAIL_MDS_CONNECT_NET 0x117
67 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
68 #define OBD_FAIL_MDS_REINT_NET_REP 0x119
69 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a
70 #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b
71 #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c
72 #define OBD_FAIL_MDS_STATFS_PACK 0x11d
73 #define OBD_FAIL_MDS_STATFS_NET 0x11e
74 #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f
75 #define OBD_FAIL_MDS_PIN_NET 0x120
76 #define OBD_FAIL_MDS_UNPIN_NET 0x121
77 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122
78 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123
79 #define OBD_FAIL_MDS_SYNC_NET 0x124
80 #define OBD_FAIL_MDS_SYNC_PACK 0x125
81 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126
82 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127
83 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128
85 #define OBD_FAIL_OST 0x200
86 #define OBD_FAIL_OST_CONNECT_NET 0x201
87 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
88 #define OBD_FAIL_OST_GET_INFO_NET 0x203
89 #define OBD_FAIL_OST_CREATE_NET 0x204
90 #define OBD_FAIL_OST_DESTROY_NET 0x205
91 #define OBD_FAIL_OST_GETATTR_NET 0x206
92 #define OBD_FAIL_OST_SETATTR_NET 0x207
93 #define OBD_FAIL_OST_OPEN_NET 0x208
94 #define OBD_FAIL_OST_CLOSE_NET 0x209
95 #define OBD_FAIL_OST_BRW_NET 0x20a
96 #define OBD_FAIL_OST_PUNCH_NET 0x20b
97 #define OBD_FAIL_OST_STATFS_NET 0x20c
98 #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d
99 #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e
100 #define OBD_FAIL_OST_BRW_READ_BULK 0x20f
101 #define OBD_FAIL_OST_SYNC_NET 0x210
102 #define OBD_FAIL_OST_ALL_REPLY_NET 0x211
103 #define OBD_FAIL_OST_ALL_REQUESTS_NET 0x212
104 #define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
105 #define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
107 #define OBD_FAIL_LDLM 0x300
108 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
109 #define OBD_FAIL_LDLM_ENQUEUE 0x302
110 #define OBD_FAIL_LDLM_CONVERT 0x303
111 #define OBD_FAIL_LDLM_CANCEL 0x304
112 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305
113 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306
114 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307
116 #define OBD_FAIL_OSC 0x400
117 #define OBD_FAIL_OSC_BRW_READ_BULK 0x401
118 #define OBD_FAIL_OSC_BRW_WRITE_BULK 0x402
119 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403
120 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404
121 #define OBD_FAIL_OSC_MATCH 0x405
123 #define OBD_FAIL_PTLRPC 0x500
124 #define OBD_FAIL_PTLRPC_ACK 0x501
125 #define OBD_FAIL_PTLRPC_RQBD 0x502
127 #define OBD_FAIL_OBD_PING_NET 0x600
128 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
129 #define OBD_FAIL_OBD_LOGD_NET 0x602
131 #define OBD_FAIL_TGT_REPLY_NET 0x700
133 /* preparation for a more advanced failure testbed (not functional yet) */
134 #define OBD_FAIL_MASK_SYS 0x0000FF00
135 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
136 #define OBD_FAIL_ONCE 0x80000000
137 #define OBD_FAILED 0x40000000
138 #define OBD_FAIL_MDS_ALL_NET 0x01000000
139 #define OBD_FAIL_OST_ALL_NET 0x02000000
141 #define OBD_FAIL_CHECK(id) (((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
142 ((id) & OBD_FAIL_MASK_LOC)) && \
143 ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!= \
144 (OBD_FAILED | OBD_FAIL_ONCE)))
146 #define OBD_FAIL_CHECK_ONCE(id) \
148 if (OBD_FAIL_CHECK(id)) { \
149 CERROR("obd_fail_loc=%x\n", id); \
150 obd_fail_loc |= OBD_FAILED; \
151 if ((id) & OBD_FAIL_ONCE) \
152 obd_fail_loc |= OBD_FAIL_ONCE; \
158 #define OBD_FAIL_RETURN(id, ret) \
160 if (OBD_FAIL_CHECK_ONCE(id)) { \
165 #define OBD_FAIL_TIMEOUT(id, secs) \
167 if (OBD_FAIL_CHECK_ONCE(id)) { \
168 CERROR("obd_fail_timeout id %x sleeping for %d secs\n", \
170 set_current_state(TASK_UNINTERRUPTIBLE); \
171 schedule_timeout((secs) * HZ); \
172 set_current_state(TASK_RUNNING); \
173 CERROR("obd_fail_timeout id %x awake\n", (id)); \
177 #define fixme() CDEBUG(D_OTHER, "FIXME\n");
180 # include <linux/types.h>
181 # include <linux/blkdev.h>
184 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
185 # define BDEVNAME_DECLARE_STORAGE(foo) char foo[BDEVNAME_SIZE]
186 # define ll_bdevname(SB, STORAGE) __bdevname(kdev_t_to_nr(SB->s_dev), STORAGE)
187 # define ll_lock_kernel lock_kernel()
188 # define ll_sbdev(SB) ((SB)->s_bdev)
189 void dev_set_rdonly(struct block_device *, int);
191 # define BDEVNAME_DECLARE_STORAGE(foo) char __unused_##foo
192 # define ll_sbdev(SB) (kdev_t_to_nr((SB)->s_dev))
193 # define ll_bdevname(SB,STORAGE) ((void)__unused_##STORAGE,bdevname(ll_sbdev(SB)))
194 # define ll_lock_kernel
195 void dev_set_rdonly(kdev_t, int);
198 void dev_clear_rdonly(int);
200 static inline void OBD_FAIL_WRITE(int id, struct super_block *sb)
202 if (OBD_FAIL_CHECK(id)) {
203 BDEVNAME_DECLARE_STORAGE(tmp);
204 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
205 id, ll_bdevname(sb, tmp));
206 dev_set_rdonly(ll_sbdev(sb), 2);
207 /* We set FAIL_ONCE because we never "un-fail" a device */
208 obd_fail_loc |= OBD_FAILED | OBD_FAIL_ONCE;
211 #else /* !__KERNEL__ */
212 # define LTIME_S(time) (time)
213 /* for obd_class.h */
215 # define ERR_PTR(a) ((void *)(a))
217 #endif /* __KERNEL__ */
219 extern atomic_t portal_kmemory;
221 #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
223 (ptr) = kmalloc(size, (gfp_mask)); \
224 if ((ptr) == NULL) { \
225 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
226 (int)(size), __FILE__, __LINE__); \
227 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
228 atomic_read(&obd_memory), atomic_read(&portal_kmemory));\
230 memset(ptr, 0, size); \
231 atomic_add(size, &obd_memory); \
232 if (atomic_read(&obd_memory) > obd_memmax) \
233 obd_memmax = atomic_read(&obd_memory); \
234 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d)\n", \
235 (int)(size), ptr, atomic_read(&obd_memory)); \
240 # define OBD_GFP_MASK GFP_NOFS
243 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_GFP_MASK)
244 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
247 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
249 # define OBD_VMALLOC(ptr, size) \
251 (ptr) = vmalloc(size); \
252 if ((ptr) == NULL) { \
253 CERROR("vmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
254 (int)(size), __FILE__, __LINE__); \
255 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
256 atomic_read(&obd_memory), atomic_read(&portal_kmemory));\
258 memset(ptr, 0, size); \
259 atomic_add(size, &obd_memory); \
260 if (atomic_read(&obd_memory) > obd_memmax) \
261 obd_memmax = atomic_read(&obd_memory); \
262 CDEBUG(D_MALLOC, "vmalloced '" #ptr "': %d at %p (tot %d)\n", \
263 (int)(size), ptr, atomic_read(&obd_memory)); \
268 #ifdef CONFIG_DEBUG_SLAB
269 #define POISON(ptr, c, s) do {} while (0)
271 #define POISON(ptr, c, s) memset(ptr, c, s)
275 #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_SIZE); \
276 kunmap(page); } while (0)
278 #define POISON_PAGE(page, val) do { } while (0)
281 #define OBD_FREE(ptr, size) \
284 atomic_sub(size, &obd_memory); \
285 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \
286 (int)(size), ptr, atomic_read(&obd_memory)); \
287 POISON(ptr, 0x5a, size); \
289 (ptr) = (void *)0xdeadbeef; \
293 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
295 # define OBD_VFREE(ptr, size) \
298 atomic_sub(size, &obd_memory); \
299 CDEBUG(D_MALLOC, "vfreed '" #ptr "': %d at %p (tot %d).\n", \
300 (int)(size), ptr, atomic_read(&obd_memory)); \
301 POISON(ptr, 0x5a, size); \
303 (ptr) = (void *)0xdeadbeef; \
307 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
308 * HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
309 * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
310 #define OBD_SLAB_ALLOC(ptr, slab, type, size) \
312 LASSERT(!in_interrupt()); \
313 (ptr) = kmem_cache_alloc(slab, (type)); \
314 if ((ptr) == NULL) { \
315 CERROR("slab-alloc of '"#ptr"' (%d bytes) failed at %s:%d\n", \
316 (int)(size), __FILE__, __LINE__); \
317 CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
318 atomic_read(&obd_memory), atomic_read(&portal_kmemory));\
320 memset(ptr, 0, size); \
321 atomic_add(size, &obd_memory); \
322 if (atomic_read(&obd_memory) > obd_memmax) \
323 obd_memmax = atomic_read(&obd_memory); \
324 CDEBUG(D_MALLOC, "slab-alloced '"#ptr"': %d at %p (tot %d)\n",\
325 (int)(size), ptr, atomic_read(&obd_memory)); \
329 #define OBD_SLAB_FREE(ptr, slab, size) \
332 CDEBUG(D_MALLOC, "slab-freed '" #ptr "': %d at %p (tot %d).\n", \
333 (int)(size), ptr, atomic_read(&obd_memory)); \
334 atomic_sub(size, &obd_memory); \
335 POISON(ptr, 0x5a, size); \
336 kmem_cache_free(slab, ptr); \
337 (ptr) = (void *)0xdeadbeef; \