fs/xfs/xfs_error.h

   1 /*
   2  * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of version 2 of the GNU General Public License as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it would be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11  *
  12  * Further, this software is distributed without any warranty that it is
  13  * free of the rightful claim of any third person regarding infringement
  14  * or the like.  Any license provided herein, whether implied or
  15  * otherwise, applies only to this software file.  Patent licenses, if
  16  * any, provided herein do not apply to combinations of this program with
  17  * other software, or any other product whatsoever.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write the Free Software Foundation, Inc., 59
  21  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  22  *
  23  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  24  * Mountain View, CA  94043, or:
  25  *
  26  * http://www.sgi.com
  27  *
  28  * For further information regarding this notice, see:
  29  *
  30  * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
  31  */
  32 #ifndef __XFS_ERROR_H__
  33 #define __XFS_ERROR_H__
  34
  35 #define prdev(fmt,targ,args...) \
  36         printk("XFS: device %s- " fmt "\n", XFS_BUFTARG_NAME(targ), ## args)
  37
  38 #define XFS_ERECOVER    1       /* Failure to recover log */
  39 #define XFS_ELOGSTAT    2       /* Failure to stat log in user space */
  40 #define XFS_ENOLOGSPACE 3       /* Reservation too large */
  41 #define XFS_ENOTSUP     4       /* Operation not supported */
  42 #define XFS_ENOLSN      5       /* Can't find the lsn you asked for */
  43 #define XFS_ENOTFOUND   6
  44 #define XFS_ENOTXFS     7       /* Not XFS filesystem */
  45
  46 #ifdef DEBUG
  47 #define XFS_ERROR_NTRAP 10
  48 extern int      xfs_etrap[XFS_ERROR_NTRAP];
  49 extern int      xfs_error_trap(int);
  50 #define XFS_ERROR(e)    xfs_error_trap(e)
  51 #else
  52 #define XFS_ERROR(e)    (e)
  53 #endif
  54
  55 struct xfs_mount;
  56
  57 extern void
  58 xfs_error_report(
  59         char            *tag,
  60         int             level,
  61         struct xfs_mount *mp,
  62         char            *fname,
  63         int             linenum,
  64         inst_t          *ra);
  65
  66 extern void
  67 xfs_corruption_error(
  68         char            *tag,
  69         int             level,
  70         struct xfs_mount *mp,
  71         void            *p,
  72         char            *fname,
  73         int             linenum,
  74         inst_t          *ra);
  75
  76 extern void
  77 xfs_hex_dump(void *p, int length);
  78
  79 #define XFS_ERROR_REPORT(e, lvl, mp)    \
  80         xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
  81 #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem)   \
  82         xfs_corruption_error(e, lvl, mp, mem, \
  83                              __FILE__, __LINE__, __return_address)
  84
  85 #define XFS_ERRLEVEL_OFF        0
  86 #define XFS_ERRLEVEL_LOW        1
  87 #define XFS_ERRLEVEL_HIGH       5
  88
  89 /*
  90  * error injection tags - the labels can be anything you want
  91  * but each tag should have its own unique number
  92  */
  93
  94 #define XFS_ERRTAG_NOERROR                              0
  95 #define XFS_ERRTAG_IFLUSH_1                             1
  96 #define XFS_ERRTAG_IFLUSH_2                             2
  97 #define XFS_ERRTAG_IFLUSH_3                             3
  98 #define XFS_ERRTAG_IFLUSH_4                             4
  99 #define XFS_ERRTAG_IFLUSH_5                             5
 100 #define XFS_ERRTAG_IFLUSH_6                             6
 101 #define XFS_ERRTAG_DA_READ_BUF                          7
 102 #define XFS_ERRTAG_BTREE_CHECK_LBLOCK                   8
 103 #define XFS_ERRTAG_BTREE_CHECK_SBLOCK                   9
 104 #define XFS_ERRTAG_ALLOC_READ_AGF                       10
 105 #define XFS_ERRTAG_IALLOC_READ_AGI                      11
 106 #define XFS_ERRTAG_ITOBP_INOTOBP                        12
 107 #define XFS_ERRTAG_IUNLINK                              13
 108 #define XFS_ERRTAG_IUNLINK_REMOVE                       14
 109 #define XFS_ERRTAG_DIR_INO_VALIDATE                     15
 110 #define XFS_ERRTAG_BULKSTAT_READ_CHUNK                  16
 111 #define XFS_ERRTAG_IODONE_IOERR                         17
 112 #define XFS_ERRTAG_STRATREAD_IOERR                      18
 113 #define XFS_ERRTAG_STRATCMPL_IOERR                      19
 114 #define XFS_ERRTAG_DIOWRITE_IOERR                       20
 115 #define XFS_ERRTAG_BMAPIFORMAT                          21
 116 #define XFS_ERRTAG_MAX                                  22
 117
 118 /*
 119  * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
 120  */
 121 #define XFS_RANDOM_DEFAULT                              100
 122 #define XFS_RANDOM_IFLUSH_1                             XFS_RANDOM_DEFAULT
 123 #define XFS_RANDOM_IFLUSH_2                             XFS_RANDOM_DEFAULT
 124 #define XFS_RANDOM_IFLUSH_3                             XFS_RANDOM_DEFAULT
 125 #define XFS_RANDOM_IFLUSH_4                             XFS_RANDOM_DEFAULT
 126 #define XFS_RANDOM_IFLUSH_5                             XFS_RANDOM_DEFAULT
 127 #define XFS_RANDOM_IFLUSH_6                             XFS_RANDOM_DEFAULT
 128 #define XFS_RANDOM_DA_READ_BUF                          XFS_RANDOM_DEFAULT
 129 #define XFS_RANDOM_BTREE_CHECK_LBLOCK                   (XFS_RANDOM_DEFAULT/4)
 130 #define XFS_RANDOM_BTREE_CHECK_SBLOCK                   XFS_RANDOM_DEFAULT
 131 #define XFS_RANDOM_ALLOC_READ_AGF                       XFS_RANDOM_DEFAULT
 132 #define XFS_RANDOM_IALLOC_READ_AGI                      XFS_RANDOM_DEFAULT
 133 #define XFS_RANDOM_ITOBP_INOTOBP                        XFS_RANDOM_DEFAULT
 134 #define XFS_RANDOM_IUNLINK                              XFS_RANDOM_DEFAULT
 135 #define XFS_RANDOM_IUNLINK_REMOVE                       XFS_RANDOM_DEFAULT
 136 #define XFS_RANDOM_DIR_INO_VALIDATE                     XFS_RANDOM_DEFAULT
 137 #define XFS_RANDOM_BULKSTAT_READ_CHUNK                  XFS_RANDOM_DEFAULT
 138 #define XFS_RANDOM_IODONE_IOERR                         (XFS_RANDOM_DEFAULT/10)
 139 #define XFS_RANDOM_STRATREAD_IOERR                      (XFS_RANDOM_DEFAULT/10)
 140 #define XFS_RANDOM_STRATCMPL_IOERR                      (XFS_RANDOM_DEFAULT/10)
 141 #define XFS_RANDOM_DIOWRITE_IOERR                       (XFS_RANDOM_DEFAULT/10)
 142 #define XFS_RANDOM_BMAPIFORMAT                          XFS_RANDOM_DEFAULT
 143
 144 #if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
 145 extern int      xfs_error_test(int, int *, char *, int, char *, unsigned long);
 146 void xfs_error_test_init(void);
 147
 148 #define XFS_NUM_INJECT_ERROR                            10
 149
 150 #ifdef __ANSI_CPP__
 151 #define XFS_TEST_ERROR(expr, mp, tag, rf)               \
 152         ((expr) || \
 153          xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
 154                          (rf)))
 155 #else
 156 #define XFS_TEST_ERROR(expr, mp, tag, rf)               \
 157         ((expr) || \
 158          xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
 159                         (rf)))
 160 #endif /* __ANSI_CPP__ */
 161
 162 int             xfs_errortag_add(int error_tag, xfs_mount_t *mp);
 163 int             xfs_errortag_clear(int error_tag, xfs_mount_t *mp);
 164
 165 int             xfs_errortag_clearall(xfs_mount_t *mp);
 166 int             xfs_errortag_clearall_umount(int64_t fsid, char *fsname,
 167                                                 int loud);
 168 #else
 169 #define XFS_TEST_ERROR(expr, mp, tag, rf)       (expr)
 170 #define xfs_errortag_add(tag, mp)               (ENOSYS)
 171 #define xfs_errortag_clearall(mp)               (ENOSYS)
 172 #endif /* (DEBUG || INDUCE_IO_ERROR) */
 173
 174 /*
 175  * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
 176  *                      a panic by setting xfs_panic_mask in a
 177  *                      sysctl.  update xfs_max[XFS_PARAM] if
 178  *                      more are added.
 179  */
 180 #define         XFS_NO_PTAG                     0
 181 #define         XFS_PTAG_IFLUSH                 0x00000001
 182 #define         XFS_PTAG_LOGRES                 0x00000002
 183 #define         XFS_PTAG_AILDELETE              0x00000004
 184 #define         XFS_PTAG_ERROR_REPORT           0x00000008
 185 #define         XFS_PTAG_SHUTDOWN_CORRUPT       0x00000010
 186 #define         XFS_PTAG_SHUTDOWN_IOERROR       0x00000020
 187 #define         XFS_PTAG_SHUTDOWN_LOGERROR      0x00000040
 188
 189 struct xfs_mount;
 190 /* PRINTFLIKE4 */
 191 void            xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
 192                             char *fmt, ...);
 193 /* PRINTFLIKE3 */
 194 void            xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
 195
 196 #endif  /* __XFS_ERROR_H__ */