blob: 610456054dc288e66510ed9e29ae2c2d5f26fb9e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include "xfs.h"
Nathan Scotta844f452005-11-02 14:38:42 +110019#include "xfs_fs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include "xfs_types.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include "xfs_log.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include "xfs_trans.h"
Nathan Scotta844f452005-11-02 14:38:42 +110023#include "xfs_sb.h"
David Chinnerda353b02007-08-28 14:00:13 +100024#include "xfs_ag.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include "xfs_mount.h"
26#include "xfs_bmap_btree.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include "xfs_dinode.h"
28#include "xfs_inode.h"
29#include "xfs_utils.h"
30#include "xfs_error.h"
31
32#ifdef DEBUG
33
34int xfs_etrap[XFS_ERROR_NTRAP] = {
35 0,
36};
37
38int
39xfs_error_trap(int e)
40{
41 int i;
42
43 if (!e)
44 return 0;
45 for (i = 0; i < XFS_ERROR_NTRAP; i++) {
46 if (xfs_etrap[i] == 0)
47 break;
48 if (e != xfs_etrap[i])
49 continue;
Dave Chinner0b932cc2011-03-07 10:08:35 +110050 xfs_notice(NULL, "%s: error %d", __func__, e);
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 BUG();
52 break;
53 }
54 return e;
55}
Linus Torvalds1da177e2005-04-16 15:20:36 -070056
57int xfs_etest[XFS_NUM_INJECT_ERROR];
58int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
59char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
Dave Chinnerc76febe2010-11-30 15:15:31 +110060int xfs_error_test_active;
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Linus Torvalds1da177e2005-04-16 15:20:36 -070062int
63xfs_error_test(int error_tag, int *fsidp, char *expression,
64 int line, char *file, unsigned long randfactor)
65{
66 int i;
67 int64_t fsid;
68
Joe Perchese7a23a92007-05-08 13:49:03 +100069 if (random32() % randfactor)
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 return 0;
71
72 memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
73
74 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
75 if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) {
Dave Chinner0b932cc2011-03-07 10:08:35 +110076 xfs_warn(NULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
78 expression, file, line, xfs_etest_fsname[i]);
79 return 1;
80 }
81 }
82
83 return 0;
84}
85
86int
87xfs_errortag_add(int error_tag, xfs_mount_t *mp)
88{
89 int i;
90 int len;
91 int64_t fsid;
92
93 memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
94
95 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
96 if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
Dave Chinner0b932cc2011-03-07 10:08:35 +110097 xfs_warn(mp, "error tag #%d on", error_tag);
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 return 0;
99 }
100 }
101
102 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
103 if (xfs_etest[i] == 0) {
Dave Chinner0b932cc2011-03-07 10:08:35 +1100104 xfs_warn(mp, "Turned on XFS error tag #%d",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 error_tag);
106 xfs_etest[i] = error_tag;
107 xfs_etest_fsid[i] = fsid;
108 len = strlen(mp->m_fsname);
109 xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP);
110 strcpy(xfs_etest_fsname[i], mp->m_fsname);
Dave Chinnerc76febe2010-11-30 15:15:31 +1100111 xfs_error_test_active++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 return 0;
113 }
114 }
115
Dave Chinner0b932cc2011-03-07 10:08:35 +1100116 xfs_warn(mp, "error tag overflow, too many turned on");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
118 return 1;
119}
120
121int
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000122xfs_errortag_clearall(xfs_mount_t *mp, int loud)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123{
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000124 int64_t fsid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 int cleared = 0;
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000126 int i;
127
128 memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
131 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
132 if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) &&
133 xfs_etest[i] != 0) {
134 cleared = 1;
Dave Chinner0b932cc2011-03-07 10:08:35 +1100135 xfs_warn(mp, "Clearing XFS error tag #%d",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136 xfs_etest[i]);
137 xfs_etest[i] = 0;
138 xfs_etest_fsid[i] = 0LL;
Denys Vlasenkof0e2d932008-05-19 16:31:57 +1000139 kmem_free(xfs_etest_fsname[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140 xfs_etest_fsname[i] = NULL;
Dave Chinnerc76febe2010-11-30 15:15:31 +1100141 xfs_error_test_active--;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 }
143 }
144
145 if (loud || cleared)
Dave Chinner0b932cc2011-03-07 10:08:35 +1100146 xfs_warn(mp, "Cleared all XFS error tags for filesystem");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148 return 0;
149}
Christoph Hellwig1550d0b2008-08-13 16:17:37 +1000150#endif /* DEBUG */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152void
153xfs_error_report(
Alex Eldera0e856b2010-04-13 15:22:08 +1000154 const char *tag,
155 int level,
156 struct xfs_mount *mp,
157 const char *filename,
158 int linenum,
159 inst_t *ra)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160{
161 if (level <= xfs_error_level) {
Dave Chinner6a19d932011-03-07 10:02:35 +1100162 xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
163 "Internal error %s at line %d of file %s. Caller 0x%p\n",
Alex Eldera0e856b2010-04-13 15:22:08 +1000164 tag, linenum, filename, ra);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
166 xfs_stack_trace();
167 }
168}
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170void
171xfs_corruption_error(
Alex Eldera0e856b2010-04-13 15:22:08 +1000172 const char *tag,
173 int level,
174 struct xfs_mount *mp,
175 void *p,
176 const char *filename,
177 int linenum,
178 inst_t *ra)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179{
180 if (level <= xfs_error_level)
181 xfs_hex_dump(p, 16);
Alex Eldera0e856b2010-04-13 15:22:08 +1000182 xfs_error_report(tag, level, mp, filename, linenum, ra);
Dave Chinner65333b42011-03-07 10:03:35 +1100183 xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184}