blob: c1c57d4a4b5db6f37a626d7e78a48f32facf8dcd [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2002,2005 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 */
18#ifndef __XFS_ERROR_H__
19#define __XFS_ERROR_H__
20
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#ifdef DEBUG
22#define XFS_ERROR_NTRAP 10
23extern int xfs_etrap[XFS_ERROR_NTRAP];
24extern int xfs_error_trap(int);
25#define XFS_ERROR(e) xfs_error_trap(e)
26#else
27#define XFS_ERROR(e) (e)
28#endif
29
30struct xfs_mount;
31
Alex Eldera0e856b2010-04-13 15:22:08 +100032extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
33 const char *filename, int linenum, inst_t *ra);
34extern void xfs_corruption_error(const char *tag, int level,
35 struct xfs_mount *mp, void *p, const char *filename,
36 int linenum, inst_t *ra);
Eric Sandeenca23f8f2014-02-27 15:21:07 +110037extern void xfs_verifier_error(struct xfs_buf *bp);
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
Linus Torvalds1da177e2005-04-16 15:20:36 -070039#define XFS_ERROR_REPORT(e, lvl, mp) \
40 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
41#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
42 xfs_corruption_error(e, lvl, mp, mem, \
43 __FILE__, __LINE__, __return_address)
44
45#define XFS_ERRLEVEL_OFF 0
46#define XFS_ERRLEVEL_LOW 1
47#define XFS_ERRLEVEL_HIGH 5
48
49/*
Nathan Scotta844f452005-11-02 14:38:42 +110050 * Macros to set EFSCORRUPTED & return/branch.
51 */
52#define XFS_WANT_CORRUPTED_GOTO(x,l) \
53 { \
54 int fs_is_ok = (x); \
55 ASSERT(fs_is_ok); \
56 if (unlikely(!fs_is_ok)) { \
57 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
58 XFS_ERRLEVEL_LOW, NULL); \
59 error = XFS_ERROR(EFSCORRUPTED); \
60 goto l; \
61 } \
62 }
63
64#define XFS_WANT_CORRUPTED_RETURN(x) \
65 { \
66 int fs_is_ok = (x); \
67 ASSERT(fs_is_ok); \
68 if (unlikely(!fs_is_ok)) { \
69 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
70 XFS_ERRLEVEL_LOW, NULL); \
71 return XFS_ERROR(EFSCORRUPTED); \
72 } \
73 }
74
75/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 * error injection tags - the labels can be anything you want
77 * but each tag should have its own unique number
78 */
79
80#define XFS_ERRTAG_NOERROR 0
81#define XFS_ERRTAG_IFLUSH_1 1
82#define XFS_ERRTAG_IFLUSH_2 2
83#define XFS_ERRTAG_IFLUSH_3 3
84#define XFS_ERRTAG_IFLUSH_4 4
85#define XFS_ERRTAG_IFLUSH_5 5
86#define XFS_ERRTAG_IFLUSH_6 6
87#define XFS_ERRTAG_DA_READ_BUF 7
88#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
89#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
90#define XFS_ERRTAG_ALLOC_READ_AGF 10
91#define XFS_ERRTAG_IALLOC_READ_AGI 11
92#define XFS_ERRTAG_ITOBP_INOTOBP 12
93#define XFS_ERRTAG_IUNLINK 13
94#define XFS_ERRTAG_IUNLINK_REMOVE 14
95#define XFS_ERRTAG_DIR_INO_VALIDATE 15
96#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
97#define XFS_ERRTAG_IODONE_IOERR 17
98#define XFS_ERRTAG_STRATREAD_IOERR 18
99#define XFS_ERRTAG_STRATCMPL_IOERR 19
100#define XFS_ERRTAG_DIOWRITE_IOERR 20
101#define XFS_ERRTAG_BMAPIFORMAT 21
102#define XFS_ERRTAG_MAX 22
103
104/*
105 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
106 */
107#define XFS_RANDOM_DEFAULT 100
108#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
109#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
110#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
111#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
112#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
113#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
114#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
115#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
116#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
117#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
118#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
119#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
120#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
121#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
122#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
123#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
124#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
125#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
126#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
127#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
128#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
129
Christoph Hellwig1550d0b2008-08-13 16:17:37 +1000130#ifdef DEBUG
Dave Chinnerc76febe2010-11-30 15:15:31 +1100131extern int xfs_error_test_active;
Nathan Scotta844f452005-11-02 14:38:42 +1100132extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133
134#define XFS_NUM_INJECT_ERROR 10
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135#define XFS_TEST_ERROR(expr, mp, tag, rf) \
Dave Chinnerc76febe2010-11-30 15:15:31 +1100136 ((expr) || (xfs_error_test_active && \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
Dave Chinnerc76febe2010-11-30 15:15:31 +1100138 (rf))))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
Dave Chinner73efe4a2011-01-12 00:35:42 +0000140extern int xfs_errortag_add(int error_tag, struct xfs_mount *mp);
141extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142#else
143#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
144#define xfs_errortag_add(tag, mp) (ENOSYS)
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000145#define xfs_errortag_clearall(mp, loud) (ENOSYS)
Christoph Hellwig1550d0b2008-08-13 16:17:37 +1000146#endif /* DEBUG */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148/*
Dave Chinner6a19d932011-03-07 10:02:35 +1100149 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
150 * a panic by setting xfs_panic_mask in a sysctl.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 */
152#define XFS_NO_PTAG 0
153#define XFS_PTAG_IFLUSH 0x00000001
154#define XFS_PTAG_LOGRES 0x00000002
155#define XFS_PTAG_AILDELETE 0x00000004
156#define XFS_PTAG_ERROR_REPORT 0x00000008
157#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
158#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
159#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
Nathan Scott572d95f2006-09-28 11:03:20 +1000160#define XFS_PTAG_FSBLOCK_ZERO 0x00000080
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162#endif /* __XFS_ERROR_H__ */