xfs_error.h 6.2 KB

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  1. /*
  2. * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
  3. * All Rights Reserved.
  4. *
  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
  7. * published by the Free Software Foundation.
  8. *
  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.
  13. *
  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
  17. */
  18. #ifndef __XFS_ERROR_H__
  19. #define __XFS_ERROR_H__
  20. #ifdef DEBUG
  21. #define XFS_ERROR_NTRAP 10
  22. extern int xfs_etrap[XFS_ERROR_NTRAP];
  23. extern int xfs_error_trap(int);
  24. #define XFS_ERROR(e) xfs_error_trap(e)
  25. #else
  26. #define XFS_ERROR(e) (e)
  27. #endif
  28. struct xfs_mount;
  29. extern void xfs_error_report(char *tag, int level, struct xfs_mount *mp,
  30. char *fname, int linenum, inst_t *ra);
  31. extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
  32. void *p, char *fname, int linenum, inst_t *ra);
  33. #define XFS_ERROR_REPORT(e, lvl, mp) \
  34. xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
  35. #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
  36. xfs_corruption_error(e, lvl, mp, mem, \
  37. __FILE__, __LINE__, __return_address)
  38. #define XFS_ERRLEVEL_OFF 0
  39. #define XFS_ERRLEVEL_LOW 1
  40. #define XFS_ERRLEVEL_HIGH 5
  41. /*
  42. * Macros to set EFSCORRUPTED & return/branch.
  43. */
  44. #define XFS_WANT_CORRUPTED_GOTO(x,l) \
  45. { \
  46. int fs_is_ok = (x); \
  47. ASSERT(fs_is_ok); \
  48. if (unlikely(!fs_is_ok)) { \
  49. XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
  50. XFS_ERRLEVEL_LOW, NULL); \
  51. error = XFS_ERROR(EFSCORRUPTED); \
  52. goto l; \
  53. } \
  54. }
  55. #define XFS_WANT_CORRUPTED_RETURN(x) \
  56. { \
  57. int fs_is_ok = (x); \
  58. ASSERT(fs_is_ok); \
  59. if (unlikely(!fs_is_ok)) { \
  60. XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
  61. XFS_ERRLEVEL_LOW, NULL); \
  62. return XFS_ERROR(EFSCORRUPTED); \
  63. } \
  64. }
  65. /*
  66. * error injection tags - the labels can be anything you want
  67. * but each tag should have its own unique number
  68. */
  69. #define XFS_ERRTAG_NOERROR 0
  70. #define XFS_ERRTAG_IFLUSH_1 1
  71. #define XFS_ERRTAG_IFLUSH_2 2
  72. #define XFS_ERRTAG_IFLUSH_3 3
  73. #define XFS_ERRTAG_IFLUSH_4 4
  74. #define XFS_ERRTAG_IFLUSH_5 5
  75. #define XFS_ERRTAG_IFLUSH_6 6
  76. #define XFS_ERRTAG_DA_READ_BUF 7
  77. #define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
  78. #define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
  79. #define XFS_ERRTAG_ALLOC_READ_AGF 10
  80. #define XFS_ERRTAG_IALLOC_READ_AGI 11
  81. #define XFS_ERRTAG_ITOBP_INOTOBP 12
  82. #define XFS_ERRTAG_IUNLINK 13
  83. #define XFS_ERRTAG_IUNLINK_REMOVE 14
  84. #define XFS_ERRTAG_DIR_INO_VALIDATE 15
  85. #define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
  86. #define XFS_ERRTAG_IODONE_IOERR 17
  87. #define XFS_ERRTAG_STRATREAD_IOERR 18
  88. #define XFS_ERRTAG_STRATCMPL_IOERR 19
  89. #define XFS_ERRTAG_DIOWRITE_IOERR 20
  90. #define XFS_ERRTAG_BMAPIFORMAT 21
  91. #define XFS_ERRTAG_MAX 22
  92. /*
  93. * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
  94. */
  95. #define XFS_RANDOM_DEFAULT 100
  96. #define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
  97. #define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
  98. #define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
  99. #define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
  100. #define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
  101. #define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
  102. #define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
  103. #define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
  104. #define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
  105. #define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
  106. #define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
  107. #define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
  108. #define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
  109. #define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
  110. #define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
  111. #define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
  112. #define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
  113. #define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
  114. #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
  115. #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
  116. #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
  117. #if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
  118. extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
  119. extern void xfs_error_test_init(void);
  120. #define XFS_NUM_INJECT_ERROR 10
  121. #ifdef __ANSI_CPP__
  122. #define XFS_TEST_ERROR(expr, mp, tag, rf) \
  123. ((expr) || \
  124. xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
  125. (rf)))
  126. #else
  127. #define XFS_TEST_ERROR(expr, mp, tag, rf) \
  128. ((expr) || \
  129. xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
  130. (rf)))
  131. #endif /* __ANSI_CPP__ */
  132. extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
  133. extern int xfs_errortag_clearall(xfs_mount_t *mp);
  134. extern int xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud);
  135. #else
  136. #define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
  137. #define xfs_errortag_add(tag, mp) (ENOSYS)
  138. #define xfs_errortag_clearall(mp) (ENOSYS)
  139. #endif /* (DEBUG || INDUCE_IO_ERROR) */
  140. /*
  141. * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
  142. * a panic by setting xfs_panic_mask in a
  143. * sysctl. update xfs_max[XFS_PARAM] if
  144. * more are added.
  145. */
  146. #define XFS_NO_PTAG 0
  147. #define XFS_PTAG_IFLUSH 0x00000001
  148. #define XFS_PTAG_LOGRES 0x00000002
  149. #define XFS_PTAG_AILDELETE 0x00000004
  150. #define XFS_PTAG_ERROR_REPORT 0x00000008
  151. #define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
  152. #define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
  153. #define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
  154. #define XFS_PTAG_FSBLOCK_ZERO 0x00000080
  155. struct xfs_mount;
  156. /* PRINTFLIKE4 */
  157. extern void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
  158. char *fmt, ...);
  159. /* PRINTFLIKE3 */
  160. extern void xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
  161. #define xfs_fs_repair_cmn_err(level, mp, fmt, args...) \
  162. xfs_fs_cmn_err(level, mp, fmt " Unmount and run xfs_repair.", ## args)
  163. #define xfs_fs_mount_cmn_err(f, fmt, args...) \
  164. ((f & XFS_MFSI_QUIET)? (void)0 : cmn_err(CE_WARN, "XFS: " fmt, ## args))
  165. #endif /* __XFS_ERROR_H__ */