Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 5 | * 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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 9 | * 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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 14 | * 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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "xfs.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 19 | #include "xfs_fs.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include "xfs_types.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include "xfs_log.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 22 | #include "xfs_inum.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include "xfs_trans.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 24 | #include "xfs_sb.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include "xfs_dir.h" |
| 26 | #include "xfs_dir2.h" |
| 27 | #include "xfs_dmapi.h" |
| 28 | #include "xfs_mount.h" |
| 29 | #include "xfs_bmap_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include "xfs_dir_sf.h" |
| 31 | #include "xfs_dir2_sf.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 32 | #include "xfs_attr_sf.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include "xfs_dinode.h" |
| 34 | #include "xfs_inode.h" |
| 35 | #include "xfs_utils.h" |
| 36 | #include "xfs_error.h" |
| 37 | |
| 38 | #ifdef DEBUG |
| 39 | |
| 40 | int xfs_etrap[XFS_ERROR_NTRAP] = { |
| 41 | 0, |
| 42 | }; |
| 43 | |
| 44 | int |
| 45 | xfs_error_trap(int e) |
| 46 | { |
| 47 | int i; |
| 48 | |
| 49 | if (!e) |
| 50 | return 0; |
| 51 | for (i = 0; i < XFS_ERROR_NTRAP; i++) { |
| 52 | if (xfs_etrap[i] == 0) |
| 53 | break; |
| 54 | if (e != xfs_etrap[i]) |
| 55 | continue; |
| 56 | cmn_err(CE_NOTE, "xfs_error_trap: error %d", e); |
| 57 | debug_stop_all_cpus((void *)-1LL); |
| 58 | BUG(); |
| 59 | break; |
| 60 | } |
| 61 | return e; |
| 62 | } |
| 63 | #endif |
| 64 | |
| 65 | #if (defined(DEBUG) || defined(INDUCE_IO_ERROR)) |
| 66 | |
| 67 | int xfs_etest[XFS_NUM_INJECT_ERROR]; |
| 68 | int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR]; |
| 69 | char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR]; |
| 70 | |
| 71 | void |
| 72 | xfs_error_test_init(void) |
| 73 | { |
| 74 | memset(xfs_etest, 0, sizeof(xfs_etest)); |
| 75 | memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid)); |
| 76 | memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname)); |
| 77 | } |
| 78 | |
| 79 | int |
| 80 | xfs_error_test(int error_tag, int *fsidp, char *expression, |
| 81 | int line, char *file, unsigned long randfactor) |
| 82 | { |
| 83 | int i; |
| 84 | int64_t fsid; |
| 85 | |
| 86 | if (random() % randfactor) |
| 87 | return 0; |
| 88 | |
| 89 | memcpy(&fsid, fsidp, sizeof(xfs_fsid_t)); |
| 90 | |
| 91 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
| 92 | if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) { |
| 93 | cmn_err(CE_WARN, |
| 94 | "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"", |
| 95 | expression, file, line, xfs_etest_fsname[i]); |
| 96 | return 1; |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | int |
| 104 | xfs_errortag_add(int error_tag, xfs_mount_t *mp) |
| 105 | { |
| 106 | int i; |
| 107 | int len; |
| 108 | int64_t fsid; |
| 109 | |
| 110 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); |
| 111 | |
| 112 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
| 113 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { |
| 114 | cmn_err(CE_WARN, "XFS error tag #%d on", error_tag); |
| 115 | return 0; |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
| 120 | if (xfs_etest[i] == 0) { |
| 121 | cmn_err(CE_WARN, "Turned on XFS error tag #%d", |
| 122 | error_tag); |
| 123 | xfs_etest[i] = error_tag; |
| 124 | xfs_etest_fsid[i] = fsid; |
| 125 | len = strlen(mp->m_fsname); |
| 126 | xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP); |
| 127 | strcpy(xfs_etest_fsname[i], mp->m_fsname); |
| 128 | return 0; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | cmn_err(CE_WARN, "error tag overflow, too many turned on"); |
| 133 | |
| 134 | return 1; |
| 135 | } |
| 136 | |
| 137 | int |
| 138 | xfs_errortag_clear(int error_tag, xfs_mount_t *mp) |
| 139 | { |
| 140 | int i; |
| 141 | int64_t fsid; |
| 142 | |
| 143 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); |
| 144 | |
| 145 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
| 146 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { |
| 147 | xfs_etest[i] = 0; |
| 148 | xfs_etest_fsid[i] = 0LL; |
| 149 | kmem_free(xfs_etest_fsname[i], |
| 150 | strlen(xfs_etest_fsname[i]) + 1); |
| 151 | xfs_etest_fsname[i] = NULL; |
| 152 | cmn_err(CE_WARN, "Cleared XFS error tag #%d", |
| 153 | error_tag); |
| 154 | return 0; |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | cmn_err(CE_WARN, "XFS error tag %d not on", error_tag); |
| 159 | |
| 160 | return 1; |
| 161 | } |
| 162 | |
| 163 | int |
| 164 | xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud) |
| 165 | { |
| 166 | int i; |
| 167 | int cleared = 0; |
| 168 | |
| 169 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
| 170 | if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) && |
| 171 | xfs_etest[i] != 0) { |
| 172 | cleared = 1; |
| 173 | cmn_err(CE_WARN, "Clearing XFS error tag #%d", |
| 174 | xfs_etest[i]); |
| 175 | xfs_etest[i] = 0; |
| 176 | xfs_etest_fsid[i] = 0LL; |
| 177 | kmem_free(xfs_etest_fsname[i], |
| 178 | strlen(xfs_etest_fsname[i]) + 1); |
| 179 | xfs_etest_fsname[i] = NULL; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | if (loud || cleared) |
| 184 | cmn_err(CE_WARN, |
| 185 | "Cleared all XFS error tags for filesystem \"%s\"", |
| 186 | fsname); |
| 187 | |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | int |
| 192 | xfs_errortag_clearall(xfs_mount_t *mp) |
| 193 | { |
| 194 | int64_t fsid; |
| 195 | |
| 196 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); |
| 197 | |
| 198 | return xfs_errortag_clearall_umount(fsid, mp->m_fsname, 1); |
| 199 | } |
| 200 | #endif /* DEBUG || INDUCE_IO_ERROR */ |
| 201 | |
| 202 | static void |
| 203 | xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap) |
| 204 | { |
| 205 | if (mp != NULL) { |
| 206 | char *newfmt; |
| 207 | int len = 16 + mp->m_fsname_len + strlen(fmt); |
| 208 | |
| 209 | newfmt = kmem_alloc(len, KM_SLEEP); |
| 210 | sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt); |
| 211 | icmn_err(level, newfmt, ap); |
| 212 | kmem_free(newfmt, len); |
| 213 | } else { |
| 214 | icmn_err(level, fmt, ap); |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | void |
| 219 | xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...) |
| 220 | { |
| 221 | va_list ap; |
| 222 | |
| 223 | va_start(ap, fmt); |
| 224 | xfs_fs_vcmn_err(level, mp, fmt, ap); |
| 225 | va_end(ap); |
| 226 | } |
| 227 | |
| 228 | void |
| 229 | xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...) |
| 230 | { |
| 231 | va_list ap; |
| 232 | |
| 233 | #ifdef DEBUG |
| 234 | xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT; |
| 235 | #endif |
| 236 | |
| 237 | if (xfs_panic_mask && (xfs_panic_mask & panic_tag) |
| 238 | && (level & CE_ALERT)) { |
| 239 | level &= ~CE_ALERT; |
| 240 | level |= CE_PANIC; |
| 241 | cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG."); |
| 242 | } |
| 243 | va_start(ap, fmt); |
| 244 | xfs_fs_vcmn_err(level, mp, fmt, ap); |
| 245 | va_end(ap); |
| 246 | } |
| 247 | |
| 248 | void |
| 249 | xfs_error_report( |
| 250 | char *tag, |
| 251 | int level, |
| 252 | xfs_mount_t *mp, |
| 253 | char *fname, |
| 254 | int linenum, |
| 255 | inst_t *ra) |
| 256 | { |
| 257 | if (level <= xfs_error_level) { |
| 258 | xfs_cmn_err(XFS_PTAG_ERROR_REPORT, |
| 259 | CE_ALERT, mp, |
| 260 | "XFS internal error %s at line %d of file %s. Caller 0x%p\n", |
| 261 | tag, linenum, fname, ra); |
| 262 | |
| 263 | xfs_stack_trace(); |
| 264 | } |
| 265 | } |
| 266 | |
Christoph Hellwig | ba0f32d | 2005-06-21 15:36:52 +1000 | [diff] [blame] | 267 | STATIC void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | xfs_hex_dump(void *p, int length) |
| 269 | { |
| 270 | __uint8_t *uip = (__uint8_t*)p; |
| 271 | int i; |
| 272 | char sbuf[128], *s; |
| 273 | |
| 274 | s = sbuf; |
| 275 | *s = '\0'; |
| 276 | for (i=0; i<length; i++, uip++) { |
| 277 | if ((i % 16) == 0) { |
| 278 | if (*s != '\0') |
| 279 | cmn_err(CE_ALERT, "%s\n", sbuf); |
| 280 | s = sbuf; |
| 281 | sprintf(s, "0x%x: ", i); |
| 282 | while( *s != '\0') |
| 283 | s++; |
| 284 | } |
| 285 | sprintf(s, "%02x ", *uip); |
| 286 | |
| 287 | /* |
| 288 | * the kernel sprintf is a void; user sprintf returns |
| 289 | * the sprintf'ed string's length. Find the new end- |
| 290 | * of-string |
| 291 | */ |
| 292 | while( *s != '\0') |
| 293 | s++; |
| 294 | } |
| 295 | cmn_err(CE_ALERT, "%s\n", sbuf); |
| 296 | } |
| 297 | |
| 298 | void |
| 299 | xfs_corruption_error( |
| 300 | char *tag, |
| 301 | int level, |
| 302 | xfs_mount_t *mp, |
| 303 | void *p, |
| 304 | char *fname, |
| 305 | int linenum, |
| 306 | inst_t *ra) |
| 307 | { |
| 308 | if (level <= xfs_error_level) |
| 309 | xfs_hex_dump(p, 16); |
| 310 | xfs_error_report(tag, level, mp, fname, linenum, ra); |
| 311 | } |