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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 -070021#define XFS_ERECOVER 1 /* Failure to recover log */
22#define XFS_ELOGSTAT 2 /* Failure to stat log in user space */
23#define XFS_ENOLOGSPACE 3 /* Reservation too large */
24#define XFS_ENOTSUP 4 /* Operation not supported */
25#define XFS_ENOLSN 5 /* Can't find the lsn you asked for */
26#define XFS_ENOTFOUND 6
27#define XFS_ENOTXFS 7 /* Not XFS filesystem */
28
29#ifdef DEBUG
30#define XFS_ERROR_NTRAP 10
31extern int xfs_etrap[XFS_ERROR_NTRAP];
32extern int xfs_error_trap(int);
33#define XFS_ERROR(e) xfs_error_trap(e)
34#else
35#define XFS_ERROR(e) (e)
36#endif
37
38struct xfs_mount;
39
Nathan Scotta844f452005-11-02 14:38:42 +110040extern void xfs_error_report(char *tag, int level, struct xfs_mount *mp,
41 char *fname, int linenum, inst_t *ra);
42extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
43 void *p, char *fname, int linenum, inst_t *ra);
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#define XFS_ERROR_REPORT(e, lvl, mp) \
46 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
47#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
48 xfs_corruption_error(e, lvl, mp, mem, \
49 __FILE__, __LINE__, __return_address)
50
51#define XFS_ERRLEVEL_OFF 0
52#define XFS_ERRLEVEL_LOW 1
53#define XFS_ERRLEVEL_HIGH 5
54
55/*
Nathan Scotta844f452005-11-02 14:38:42 +110056 * Macros to set EFSCORRUPTED & return/branch.
57 */
58#define XFS_WANT_CORRUPTED_GOTO(x,l) \
59 { \
60 int fs_is_ok = (x); \
61 ASSERT(fs_is_ok); \
62 if (unlikely(!fs_is_ok)) { \
63 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
64 XFS_ERRLEVEL_LOW, NULL); \
65 error = XFS_ERROR(EFSCORRUPTED); \
66 goto l; \
67 } \
68 }
69
70#define XFS_WANT_CORRUPTED_RETURN(x) \
71 { \
72 int fs_is_ok = (x); \
73 ASSERT(fs_is_ok); \
74 if (unlikely(!fs_is_ok)) { \
75 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
76 XFS_ERRLEVEL_LOW, NULL); \
77 return XFS_ERROR(EFSCORRUPTED); \
78 } \
79 }
80
81/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 * error injection tags - the labels can be anything you want
83 * but each tag should have its own unique number
84 */
85
86#define XFS_ERRTAG_NOERROR 0
87#define XFS_ERRTAG_IFLUSH_1 1
88#define XFS_ERRTAG_IFLUSH_2 2
89#define XFS_ERRTAG_IFLUSH_3 3
90#define XFS_ERRTAG_IFLUSH_4 4
91#define XFS_ERRTAG_IFLUSH_5 5
92#define XFS_ERRTAG_IFLUSH_6 6
93#define XFS_ERRTAG_DA_READ_BUF 7
94#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
95#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
96#define XFS_ERRTAG_ALLOC_READ_AGF 10
97#define XFS_ERRTAG_IALLOC_READ_AGI 11
98#define XFS_ERRTAG_ITOBP_INOTOBP 12
99#define XFS_ERRTAG_IUNLINK 13
100#define XFS_ERRTAG_IUNLINK_REMOVE 14
101#define XFS_ERRTAG_DIR_INO_VALIDATE 15
102#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
103#define XFS_ERRTAG_IODONE_IOERR 17
104#define XFS_ERRTAG_STRATREAD_IOERR 18
105#define XFS_ERRTAG_STRATCMPL_IOERR 19
106#define XFS_ERRTAG_DIOWRITE_IOERR 20
107#define XFS_ERRTAG_BMAPIFORMAT 21
108#define XFS_ERRTAG_MAX 22
109
110/*
111 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
112 */
113#define XFS_RANDOM_DEFAULT 100
114#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
115#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
116#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
117#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
118#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
119#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
120#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
121#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
122#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
123#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
124#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
125#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
126#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
127#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
128#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
129#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
130#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
131#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
132#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
133#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
134#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
135
136#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
Nathan Scotta844f452005-11-02 14:38:42 +1100137extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
138extern void xfs_error_test_init(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
140#define XFS_NUM_INJECT_ERROR 10
141
142#ifdef __ANSI_CPP__
143#define XFS_TEST_ERROR(expr, mp, tag, rf) \
144 ((expr) || \
145 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
146 (rf)))
147#else
148#define XFS_TEST_ERROR(expr, mp, tag, rf) \
149 ((expr) || \
150 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
151 (rf)))
152#endif /* __ANSI_CPP__ */
153
Nathan Scotta844f452005-11-02 14:38:42 +1100154extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
155extern int xfs_errortag_clear(int error_tag, xfs_mount_t *mp);
156extern int xfs_errortag_clearall(xfs_mount_t *mp);
157extern int xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158#else
159#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
160#define xfs_errortag_add(tag, mp) (ENOSYS)
161#define xfs_errortag_clearall(mp) (ENOSYS)
162#endif /* (DEBUG || INDUCE_IO_ERROR) */
163
164/*
165 * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
166 * a panic by setting xfs_panic_mask in a
167 * sysctl. update xfs_max[XFS_PARAM] if
168 * more are added.
169 */
170#define XFS_NO_PTAG 0
171#define XFS_PTAG_IFLUSH 0x00000001
172#define XFS_PTAG_LOGRES 0x00000002
173#define XFS_PTAG_AILDELETE 0x00000004
174#define XFS_PTAG_ERROR_REPORT 0x00000008
175#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
176#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
177#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
178
179struct xfs_mount;
180/* PRINTFLIKE4 */
Nathan Scotta844f452005-11-02 14:38:42 +1100181extern void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
Nathan Scott3762ec62006-01-12 10:29:53 +1100182 char *fmt, ...);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183/* PRINTFLIKE3 */
Nathan Scotta844f452005-11-02 14:38:42 +1100184extern void xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185
Nathan Scott3762ec62006-01-12 10:29:53 +1100186#define xfs_fs_repair_cmn_err(level, mp, fmt, args...) \
187 xfs_fs_cmn_err(level, mp, fmt " Unmount and run xfs_repair.", ## args)
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189#endif /* __XFS_ERROR_H__ */