fs/xfs/xfs_error.h

0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003  * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
0004  * All Rights Reserved.
0005  */
0006 #ifndef __XFS_ERROR_H__
0007 #define __XFS_ERROR_H__
0008
0009 struct xfs_mount;
0010
0011 extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
0012             const char *filename, int linenum,
0013             xfs_failaddr_t failaddr);
0014 extern void xfs_corruption_error(const char *tag, int level,
0015             struct xfs_mount *mp, const void *buf, size_t bufsize,
0016             const char *filename, int linenum,
0017             xfs_failaddr_t failaddr);
0018 void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
0019 extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error,
0020             const char *name, const void *buf, size_t bufsz,
0021             xfs_failaddr_t failaddr);
0022 extern void xfs_verifier_error(struct xfs_buf *bp, int error,
0023             xfs_failaddr_t failaddr);
0024 extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
0025             const char *name, const void *buf, size_t bufsz,
0026             xfs_failaddr_t failaddr);
0027
0028 #define XFS_ERROR_REPORT(e, lvl, mp)    \
0029     xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
0030 #define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize)  \
0031     xfs_corruption_error(e, lvl, mp, buf, bufsize, \
0032                  __FILE__, __LINE__, __return_address)
0033
0034 #define XFS_ERRLEVEL_OFF    0
0035 #define XFS_ERRLEVEL_LOW    1
0036 #define XFS_ERRLEVEL_HIGH   5
0037
0038 /* Dump 128 bytes of any corrupt buffer */
0039 #define XFS_CORRUPTION_DUMP_LEN     (128)
0040
0041 #ifdef DEBUG
0042 extern int xfs_errortag_init(struct xfs_mount *mp);
0043 extern void xfs_errortag_del(struct xfs_mount *mp);
0044 extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression,
0045         const char *file, int line, unsigned int error_tag);
0046 #define XFS_TEST_ERROR(expr, mp, tag)       \
0047     ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag)))
0048
0049 extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
0050 extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
0051         unsigned int tag_value);
0052 extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
0053 extern int xfs_errortag_clearall(struct xfs_mount *mp);
0054 #else
0055 #define xfs_errortag_init(mp)           (0)
0056 #define xfs_errortag_del(mp)
0057 #define XFS_TEST_ERROR(expr, mp, tag)       (expr)
0058 #define xfs_errortag_set(mp, tag, val)      (ENOSYS)
0059 #define xfs_errortag_add(mp, tag)       (ENOSYS)
0060 #define xfs_errortag_clearall(mp)       (ENOSYS)
0061 #endif /* DEBUG */
0062
0063 /*
0064  * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
0065  *          a panic by setting xfs_panic_mask in a sysctl.
0066  */
0067 #define     XFS_NO_PTAG         0u
0068 #define     XFS_PTAG_IFLUSH         (1u << 0)
0069 #define     XFS_PTAG_LOGRES         (1u << 1)
0070 #define     XFS_PTAG_AILDELETE      (1u << 2)
0071 #define     XFS_PTAG_ERROR_REPORT       (1u << 3)
0072 #define     XFS_PTAG_SHUTDOWN_CORRUPT   (1u << 4)
0073 #define     XFS_PTAG_SHUTDOWN_IOERROR   (1u << 5)
0074 #define     XFS_PTAG_SHUTDOWN_LOGERROR  (1u << 6)
0075 #define     XFS_PTAG_FSBLOCK_ZERO       (1u << 7)
0076 #define     XFS_PTAG_VERIFIER_ERROR     (1u << 8)
0077
0078 #define XFS_PTAG_STRINGS \
0079     { XFS_NO_PTAG,          "none" }, \
0080     { XFS_PTAG_IFLUSH,      "iflush" }, \
0081     { XFS_PTAG_LOGRES,      "logres" }, \
0082     { XFS_PTAG_AILDELETE,       "aildelete" }, \
0083     { XFS_PTAG_ERROR_REPORT ,   "error_report" }, \
0084     { XFS_PTAG_SHUTDOWN_CORRUPT,    "corrupt" }, \
0085     { XFS_PTAG_SHUTDOWN_IOERROR,    "ioerror" }, \
0086     { XFS_PTAG_SHUTDOWN_LOGERROR,   "logerror" }, \
0087     { XFS_PTAG_FSBLOCK_ZERO,    "fsb_zero" }, \
0088     { XFS_PTAG_VERIFIER_ERROR,  "verifier" }
0089
0090 #endif  /* __XFS_ERROR_H__ */