blob: f227ecd1a2942714e1d062c142c27f14781613a1 [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"
Nathan Scotta844f452005-11-02 14:38:42 +110022#include "xfs_inum.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include "xfs_trans.h"
Nathan Scotta844f452005-11-02 14:38:42 +110024#include "xfs_sb.h"
David Chinnerda353b02007-08-28 14:00:13 +100025#include "xfs_ag.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include "xfs_dir2.h"
27#include "xfs_dmapi.h"
28#include "xfs_mount.h"
29#include "xfs_bmap_btree.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "xfs_dir2_sf.h"
Nathan Scotta844f452005-11-02 14:38:42 +110031#include "xfs_attr_sf.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include "xfs_dinode.h"
33#include "xfs_inode.h"
34#include "xfs_utils.h"
35#include "xfs_error.h"
36
37#ifdef DEBUG
38
39int xfs_etrap[XFS_ERROR_NTRAP] = {
40 0,
41};
42
43int
44xfs_error_trap(int e)
45{
46 int i;
47
48 if (!e)
49 return 0;
50 for (i = 0; i < XFS_ERROR_NTRAP; i++) {
51 if (xfs_etrap[i] == 0)
52 break;
53 if (e != xfs_etrap[i])
54 continue;
55 cmn_err(CE_NOTE, "xfs_error_trap: error %d", e);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 BUG();
57 break;
58 }
59 return e;
60}
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
62int xfs_etest[XFS_NUM_INJECT_ERROR];
63int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
64char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
65
Linus Torvalds1da177e2005-04-16 15:20:36 -070066int
67xfs_error_test(int error_tag, int *fsidp, char *expression,
68 int line, char *file, unsigned long randfactor)
69{
70 int i;
71 int64_t fsid;
72
Joe Perchese7a23a92007-05-08 13:49:03 +100073 if (random32() % randfactor)
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 return 0;
75
76 memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
77
78 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
79 if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) {
80 cmn_err(CE_WARN,
81 "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
82 expression, file, line, xfs_etest_fsname[i]);
83 return 1;
84 }
85 }
86
87 return 0;
88}
89
90int
91xfs_errortag_add(int error_tag, xfs_mount_t *mp)
92{
93 int i;
94 int len;
95 int64_t fsid;
96
97 memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
98
99 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
100 if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
101 cmn_err(CE_WARN, "XFS error tag #%d on", error_tag);
102 return 0;
103 }
104 }
105
106 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
107 if (xfs_etest[i] == 0) {
108 cmn_err(CE_WARN, "Turned on XFS error tag #%d",
109 error_tag);
110 xfs_etest[i] = error_tag;
111 xfs_etest_fsid[i] = fsid;
112 len = strlen(mp->m_fsname);
113 xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP);
114 strcpy(xfs_etest_fsname[i], mp->m_fsname);
115 return 0;
116 }
117 }
118
119 cmn_err(CE_WARN, "error tag overflow, too many turned on");
120
121 return 1;
122}
123
124int
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000125xfs_errortag_clearall(xfs_mount_t *mp, int loud)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126{
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000127 int64_t fsid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 int cleared = 0;
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000129 int i;
130
131 memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
132
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133
134 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
135 if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) &&
136 xfs_etest[i] != 0) {
137 cleared = 1;
138 cmn_err(CE_WARN, "Clearing XFS error tag #%d",
139 xfs_etest[i]);
140 xfs_etest[i] = 0;
141 xfs_etest_fsid[i] = 0LL;
Denys Vlasenkof0e2d932008-05-19 16:31:57 +1000142 kmem_free(xfs_etest_fsname[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 xfs_etest_fsname[i] = NULL;
144 }
145 }
146
147 if (loud || cleared)
148 cmn_err(CE_WARN,
149 "Cleared all XFS error tags for filesystem \"%s\"",
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000150 mp->m_fsname);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151
152 return 0;
153}
Christoph Hellwig1550d0b2008-08-13 16:17:37 +1000154#endif /* DEBUG */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
156static void
157xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)
158{
159 if (mp != NULL) {
160 char *newfmt;
161 int len = 16 + mp->m_fsname_len + strlen(fmt);
162
163 newfmt = kmem_alloc(len, KM_SLEEP);
164 sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt);
165 icmn_err(level, newfmt, ap);
Denys Vlasenkof0e2d932008-05-19 16:31:57 +1000166 kmem_free(newfmt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 } else {
168 icmn_err(level, fmt, ap);
169 }
170}
171
172void
173xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...)
174{
175 va_list ap;
176
177 va_start(ap, fmt);
178 xfs_fs_vcmn_err(level, mp, fmt, ap);
179 va_end(ap);
180}
181
182void
183xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...)
184{
185 va_list ap;
186
187#ifdef DEBUG
188 xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT;
189#endif
190
191 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)
192 && (level & CE_ALERT)) {
193 level &= ~CE_ALERT;
194 level |= CE_PANIC;
195 cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG.");
196 }
197 va_start(ap, fmt);
198 xfs_fs_vcmn_err(level, mp, fmt, ap);
199 va_end(ap);
200}
201
202void
203xfs_error_report(
204 char *tag,
205 int level,
206 xfs_mount_t *mp,
207 char *fname,
208 int linenum,
209 inst_t *ra)
210{
211 if (level <= xfs_error_level) {
212 xfs_cmn_err(XFS_PTAG_ERROR_REPORT,
213 CE_ALERT, mp,
214 "XFS internal error %s at line %d of file %s. Caller 0x%p\n",
215 tag, linenum, fname, ra);
216
217 xfs_stack_trace();
218 }
219}
220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221void
222xfs_corruption_error(
223 char *tag,
224 int level,
225 xfs_mount_t *mp,
226 void *p,
227 char *fname,
228 int linenum,
229 inst_t *ra)
230{
231 if (level <= xfs_error_level)
232 xfs_hex_dump(p, 16);
233 xfs_error_report(tag, level, mp, fname, linenum, ra);
234}