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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 -070021struct xfs_mount;
22
Alex Eldera0e856b2010-04-13 15:22:08 +100023extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
Christoph Hellwigfc51c2b2015-06-22 09:44:02 +100024 const char *filename, int linenum, void *ra);
Alex Eldera0e856b2010-04-13 15:22:08 +100025extern void xfs_corruption_error(const char *tag, int level,
26 struct xfs_mount *mp, void *p, const char *filename,
Christoph Hellwigfc51c2b2015-06-22 09:44:02 +100027 int linenum, void *ra);
Eric Sandeenca23f8f2014-02-27 15:21:07 +110028extern void xfs_verifier_error(struct xfs_buf *bp);
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#define XFS_ERROR_REPORT(e, lvl, mp) \
31 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
32#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
33 xfs_corruption_error(e, lvl, mp, mem, \
34 __FILE__, __LINE__, __return_address)
35
36#define XFS_ERRLEVEL_OFF 0
37#define XFS_ERRLEVEL_LOW 1
38#define XFS_ERRLEVEL_HIGH 5
39
40/*
Nathan Scotta844f452005-11-02 14:38:42 +110041 * Macros to set EFSCORRUPTED & return/branch.
42 */
Eric Sandeenc29aad42015-02-23 22:39:08 +110043#define XFS_WANT_CORRUPTED_GOTO(mp, x, l) \
Nathan Scotta844f452005-11-02 14:38:42 +110044 { \
45 int fs_is_ok = (x); \
46 ASSERT(fs_is_ok); \
47 if (unlikely(!fs_is_ok)) { \
48 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
Eric Sandeenc29aad42015-02-23 22:39:08 +110049 XFS_ERRLEVEL_LOW, mp); \
Dave Chinner24513372014-06-25 14:58:08 +100050 error = -EFSCORRUPTED; \
Nathan Scotta844f452005-11-02 14:38:42 +110051 goto l; \
52 } \
53 }
54
Eric Sandeen5fb5aee2015-02-23 22:39:13 +110055#define XFS_WANT_CORRUPTED_RETURN(mp, x) \
Nathan Scotta844f452005-11-02 14:38:42 +110056 { \
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", \
Eric Sandeen5fb5aee2015-02-23 22:39:13 +110061 XFS_ERRLEVEL_LOW, mp); \
Dave Chinner24513372014-06-25 14:58:08 +100062 return -EFSCORRUPTED; \
Nathan Scotta844f452005-11-02 14:38:42 +110063 } \
64 }
65
66/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 * error injection tags - the labels can be anything you want
68 * but each tag should have its own unique number
69 */
70
71#define XFS_ERRTAG_NOERROR 0
72#define XFS_ERRTAG_IFLUSH_1 1
73#define XFS_ERRTAG_IFLUSH_2 2
74#define XFS_ERRTAG_IFLUSH_3 3
75#define XFS_ERRTAG_IFLUSH_4 4
76#define XFS_ERRTAG_IFLUSH_5 5
77#define XFS_ERRTAG_IFLUSH_6 6
78#define XFS_ERRTAG_DA_READ_BUF 7
79#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
80#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
81#define XFS_ERRTAG_ALLOC_READ_AGF 10
82#define XFS_ERRTAG_IALLOC_READ_AGI 11
83#define XFS_ERRTAG_ITOBP_INOTOBP 12
84#define XFS_ERRTAG_IUNLINK 13
85#define XFS_ERRTAG_IUNLINK_REMOVE 14
86#define XFS_ERRTAG_DIR_INO_VALIDATE 15
87#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
88#define XFS_ERRTAG_IODONE_IOERR 17
89#define XFS_ERRTAG_STRATREAD_IOERR 18
90#define XFS_ERRTAG_STRATCMPL_IOERR 19
91#define XFS_ERRTAG_DIOWRITE_IOERR 20
92#define XFS_ERRTAG_BMAPIFORMAT 21
93#define XFS_ERRTAG_MAX 22
94
95/*
96 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
97 */
98#define XFS_RANDOM_DEFAULT 100
99#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
100#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
101#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
102#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
103#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
104#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
105#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
106#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
107#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
108#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
109#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
110#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
111#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
112#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
113#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
114#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
115#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
116#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
117#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
118#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
119#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
120
Christoph Hellwig1550d0b2008-08-13 16:17:37 +1000121#ifdef DEBUG
Dave Chinnerc76febe2010-11-30 15:15:31 +1100122extern int xfs_error_test_active;
Nathan Scotta844f452005-11-02 14:38:42 +1100123extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
125#define XFS_NUM_INJECT_ERROR 10
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126#define XFS_TEST_ERROR(expr, mp, tag, rf) \
Dave Chinnerc76febe2010-11-30 15:15:31 +1100127 ((expr) || (xfs_error_test_active && \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
Dave Chinnerc76febe2010-11-30 15:15:31 +1100129 (rf))))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
Dave Chinner73efe4a2011-01-12 00:35:42 +0000131extern int xfs_errortag_add(int error_tag, struct xfs_mount *mp);
132extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133#else
134#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
135#define xfs_errortag_add(tag, mp) (ENOSYS)
Christoph Hellwig0ce4cfd2007-08-30 17:20:53 +1000136#define xfs_errortag_clearall(mp, loud) (ENOSYS)
Christoph Hellwig1550d0b2008-08-13 16:17:37 +1000137#endif /* DEBUG */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138
139/*
Dave Chinner6a19d932011-03-07 10:02:35 +1100140 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
141 * a panic by setting xfs_panic_mask in a sysctl.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 */
143#define XFS_NO_PTAG 0
144#define XFS_PTAG_IFLUSH 0x00000001
145#define XFS_PTAG_LOGRES 0x00000002
146#define XFS_PTAG_AILDELETE 0x00000004
147#define XFS_PTAG_ERROR_REPORT 0x00000008
148#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
149#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
150#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
Nathan Scott572d95f2006-09-28 11:03:20 +1000151#define XFS_PTAG_FSBLOCK_ZERO 0x00000080
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153#endif /* __XFS_ERROR_H__ */