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.
26 #include <linux/autoconf.h>
27 #include <linux/slab.h>
28 #include <linux/kp30.h>
30 /* global variables */
31 extern unsigned long obd_memory;
32 extern unsigned long obd_fail_loc;
34 #define OBD_FAIL_MDS 0x100
35 #define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
36 #define OBD_FAIL_MDS_GETATTR_NET 0x102
37 #define OBD_FAIL_MDS_GETATTR_PACK 0x103
38 #define OBD_FAIL_MDS_READPAGE_NET 0x104
39 #define OBD_FAIL_MDS_READPAGE_PACK 0x105
40 #define OBD_FAIL_MDS_SENDPAGE 0x106
41 #define OBD_FAIL_MDS_REINT_NET 0x107
42 #define OBD_FAIL_MDS_REINT_UNPACK 0x108
43 #define OBD_FAIL_MDS_REINT_SETATTR 0x109
44 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
45 #define OBD_FAIL_MDS_REINT_CREATE 0x10b
46 #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c
47 #define OBD_FAIL_MDS_REINT_UNLINK 0x10d
48 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e
49 #define OBD_FAIL_MDS_REINT_LINK 0x10f
50 #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110
51 #define OBD_FAIL_MDS_REINT_RENAME 0x111
52 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112
53 #define OBD_FAIL_MDS_OPEN_NET 0x113
54 #define OBD_FAIL_MDS_OPEN_PACK 0x114
55 #define OBD_FAIL_MDS_CLOSE_NET 0x115
56 #define OBD_FAIL_MDS_CLOSE_PACK 0x116
57 #define OBD_FAIL_MDS_CONNECT_NET 0x117
58 #define OBD_FAIL_MDS_CONNECT_PACK 0x118
60 #define OBD_FAIL_OST 0x200
61 #define OBD_FAIL_OST_CONNECT_NET 0x201
62 #define OBD_FAIL_OST_DISCONNECT_NET 0x202
63 #define OBD_FAIL_OST_GET_INFO_NET 0x203
64 #define OBD_FAIL_OST_CREATE_NET 0x204
65 #define OBD_FAIL_OST_DESTROY_NET 0x205
66 #define OBD_FAIL_OST_GETATTR_NET 0x206
67 #define OBD_FAIL_OST_SETATTR_NET 0x207
68 #define OBD_FAIL_OST_OPEN_NET 0x208
69 #define OBD_FAIL_OST_CLOSE_NET 0x209
70 #define OBD_FAIL_OST_BRW_NET 0x20a
71 #define OBD_FAIL_OST_PUNCH_NET 0x20b
73 #define OBB_FAIL_LDLM 0x300
74 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
75 #define OBD_FAIL_LDLM_ENQUEUE 0x302
76 #define OBD_FAIL_LDLM_CONVERT 0x303
77 #define OBD_FAIL_LDLM_CANCEL 0x304
78 #define OBD_FAIL_LDLM_CALLBACK 0x305
80 /* preparation for a more advanced failure testbed (not functional yet) */
81 #define OBD_FAIL_MASK_SYS 0x0000FF00
82 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
83 #define OBD_FAIL_ONCE 0x80000000
84 #define OBD_FAILED 0x40000000
85 #define OBD_FAIL_MDS_ALL_NET 0x01000000
86 #define OBD_FAIL_OST_ALL_NET 0x02000000
88 #define OBD_FAIL_CHECK(id) ((obd_fail_loc & OBD_FAIL_MASK_LOC) == (id) && \
89 ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!=\
90 (OBD_FAILED | OBD_FAIL_ONCE)))
92 #define OBD_FAIL_RETURN(id, ret) \
94 if (OBD_FAIL_CHECK(id)) { \
95 CERROR("obd_fail_loc=%x, fail operation rc=%d\n", id, ret); \
96 obd_fail_loc |= OBD_FAILED; \
97 if ((id) & OBD_FAIL_ONCE) \
98 obd_fail_loc |= OBD_FAIL_ONCE; \
103 #include <linux/types.h>
104 #include <linux/blkdev.h>
106 static inline void OBD_FAIL_WRITE(int id, kdev_t dev)
108 if (OBD_FAIL_CHECK(id)) {
109 #ifdef CONFIG_DEV_RDONLY
110 CERROR("obd_fail_loc=%x, fail write operation on %s\n",
112 dev_set_rdonly(dev, 2);
114 CERROR("obd_fail_loc=%x, can't fail write operation on %s\n",
117 /* We set FAIL_ONCE because we never "un-fail" a device */
118 obd_fail_loc |= OBD_FAILED | OBD_FAIL_ONCE;
122 #define OBD_ALLOC(ptr, size) \
125 (ptr) = kmalloc(s, GFP_KERNEL); \
126 if ((ptr) == NULL) { \
127 CERROR("kmalloc of '" #ptr "' (%ld bytes) failed " \
128 "at %s:%d\n", s, __FILE__, __LINE__); \
130 memset((ptr), 0, s); \
132 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %ld at "\
133 "%p (tot %ld).\n", s, (ptr), obd_memory);\
137 #define OBD_FREE(ptr, size) \
141 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %ld).\n", \
142 s, (ptr), obd_memory); \