diff options
Diffstat (limited to 'fs/xfs/xfs_error.h')
| -rw-r--r-- | fs/xfs/xfs_error.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h new file mode 100644 index 0000000000..0b9c5ba8a5 --- /dev/null +++ b/fs/xfs/xfs_error.h @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * All Rights Reserved. + */ +#ifndef __XFS_ERROR_H__ +#define __XFS_ERROR_H__ + +struct xfs_mount; + +extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp, + const char *filename, int linenum, + xfs_failaddr_t failaddr); +extern void xfs_corruption_error(const char *tag, int level, + struct xfs_mount *mp, const void *buf, size_t bufsize, + const char *filename, int linenum, + xfs_failaddr_t failaddr); +void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa); +extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error, + const char *name, const void *buf, size_t bufsz, + xfs_failaddr_t failaddr); +extern void xfs_verifier_error(struct xfs_buf *bp, int error, + xfs_failaddr_t failaddr); +extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error, + const char *name, const void *buf, size_t bufsz, + xfs_failaddr_t failaddr); + +#define XFS_ERROR_REPORT(e, lvl, mp) \ + xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) +#define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize) \ + xfs_corruption_error(e, lvl, mp, buf, bufsize, \ + __FILE__, __LINE__, __return_address) + +#define XFS_ERRLEVEL_OFF 0 +#define XFS_ERRLEVEL_LOW 1 +#define XFS_ERRLEVEL_HIGH 5 + +/* Dump 128 bytes of any corrupt buffer */ +#define XFS_CORRUPTION_DUMP_LEN (128) + +#ifdef DEBUG +extern int xfs_errortag_init(struct xfs_mount *mp); +extern void xfs_errortag_del(struct xfs_mount *mp); +extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression, + const char *file, int line, unsigned int error_tag); +#define XFS_TEST_ERROR(expr, mp, tag) \ + ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) +bool xfs_errortag_enabled(struct xfs_mount *mp, unsigned int tag); +#define XFS_ERRORTAG_DELAY(mp, tag) \ + do { \ + might_sleep(); \ + if (!xfs_errortag_enabled((mp), (tag))) \ + break; \ + xfs_warn_ratelimited((mp), \ +"Injecting %ums delay at file %s, line %d, on filesystem \"%s\"", \ + (mp)->m_errortag[(tag)], __FILE__, __LINE__, \ + (mp)->m_super->s_id); \ + mdelay((mp)->m_errortag[(tag)]); \ + } while (0) + +extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); +extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag, + unsigned int tag_value); +extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag); +extern int xfs_errortag_clearall(struct xfs_mount *mp); +#else +#define xfs_errortag_init(mp) (0) +#define xfs_errortag_del(mp) +#define XFS_TEST_ERROR(expr, mp, tag) (expr) +#define XFS_ERRORTAG_DELAY(mp, tag) ((void)0) +#define xfs_errortag_set(mp, tag, val) (ENOSYS) +#define xfs_errortag_add(mp, tag) (ENOSYS) +#define xfs_errortag_clearall(mp) (ENOSYS) +#endif /* DEBUG */ + +/* + * XFS panic tags -- allow a call to xfs_alert_tag() be turned into + * a panic by setting fs.xfs.panic_mask in a sysctl. + */ +#define XFS_NO_PTAG 0u +#define XFS_PTAG_IFLUSH (1u << 0) +#define XFS_PTAG_LOGRES (1u << 1) +#define XFS_PTAG_AILDELETE (1u << 2) +#define XFS_PTAG_ERROR_REPORT (1u << 3) +#define XFS_PTAG_SHUTDOWN_CORRUPT (1u << 4) +#define XFS_PTAG_SHUTDOWN_IOERROR (1u << 5) +#define XFS_PTAG_SHUTDOWN_LOGERROR (1u << 6) +#define XFS_PTAG_FSBLOCK_ZERO (1u << 7) +#define XFS_PTAG_VERIFIER_ERROR (1u << 8) + +#define XFS_PTAG_MASK (XFS_PTAG_IFLUSH | \ + XFS_PTAG_LOGRES | \ + XFS_PTAG_AILDELETE | \ + XFS_PTAG_ERROR_REPORT | \ + XFS_PTAG_SHUTDOWN_CORRUPT | \ + XFS_PTAG_SHUTDOWN_IOERROR | \ + XFS_PTAG_SHUTDOWN_LOGERROR | \ + XFS_PTAG_FSBLOCK_ZERO | \ + XFS_PTAG_VERIFIER_ERROR) + +#define XFS_PTAG_STRINGS \ + { XFS_NO_PTAG, "none" }, \ + { XFS_PTAG_IFLUSH, "iflush" }, \ + { XFS_PTAG_LOGRES, "logres" }, \ + { XFS_PTAG_AILDELETE, "aildelete" }, \ + { XFS_PTAG_ERROR_REPORT , "error_report" }, \ + { XFS_PTAG_SHUTDOWN_CORRUPT, "corrupt" }, \ + { XFS_PTAG_SHUTDOWN_IOERROR, "ioerror" }, \ + { XFS_PTAG_SHUTDOWN_LOGERROR, "logerror" }, \ + { XFS_PTAG_FSBLOCK_ZERO, "fsb_zero" }, \ + { XFS_PTAG_VERIFIER_ERROR, "verifier" } + +#endif /* __XFS_ERROR_H__ */ |