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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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2d263debd7
Add an errortag mount option that enables an errortag with the default injection frequency. This allows injecting errors into the mount process instead of just on live file systems, and thus test mount error handling. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Carlos Maiolino <cem@kernel.org>
100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_ERROR_H__
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#define __XFS_ERROR_H__
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struct xfs_mount;
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void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
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const char *filename, int linenum, xfs_failaddr_t failaddr);
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void xfs_corruption_error(const char *tag, int level, struct xfs_mount *mp,
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const void *buf, size_t bufsize, const char *filename,
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int linenum, xfs_failaddr_t failaddr);
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void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
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void xfs_buf_verifier_error(struct xfs_buf *bp, int error, const char *name,
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const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
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void xfs_verifier_error(struct xfs_buf *bp, int error, xfs_failaddr_t failaddr);
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void xfs_inode_verifier_error(struct xfs_inode *ip, int error, const char *name,
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const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
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#define XFS_ERROR_REPORT(e, lvl, mp) \
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xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
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#define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize) \
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xfs_corruption_error(e, lvl, mp, buf, bufsize, \
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__FILE__, __LINE__, __return_address)
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#define XFS_ERRLEVEL_OFF 0
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#define XFS_ERRLEVEL_LOW 1
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#define XFS_ERRLEVEL_HIGH 5
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/* Dump 128 bytes of any corrupt buffer */
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#define XFS_CORRUPTION_DUMP_LEN (128)
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#ifdef DEBUG
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int xfs_errortag_init(struct xfs_mount *mp);
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void xfs_errortag_del(struct xfs_mount *mp);
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bool xfs_errortag_test(struct xfs_mount *mp, const char *file, int line,
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unsigned int error_tag);
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#define XFS_TEST_ERROR(mp, tag) \
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xfs_errortag_test((mp), __FILE__, __LINE__, (tag))
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void xfs_errortag_delay(struct xfs_mount *mp, const char *file, int line,
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unsigned int error_tag);
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#define XFS_ERRORTAG_DELAY(mp, tag) \
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xfs_errortag_delay((mp), __FILE__, __LINE__, (tag))
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int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
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int xfs_errortag_add_name(struct xfs_mount *mp, const char *tag_name);
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void xfs_errortag_copy(struct xfs_mount *dst_mp, struct xfs_mount *src_mp);
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int xfs_errortag_clearall(struct xfs_mount *mp);
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#else
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#define xfs_errortag_init(mp) (0)
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#define xfs_errortag_del(mp)
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#define XFS_TEST_ERROR(mp, tag) (false)
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#define XFS_ERRORTAG_DELAY(mp, tag) ((void)0)
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#define xfs_errortag_add(mp, tag) (-ENOSYS)
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#define xfs_errortag_copy(dst_mp, src_mp) ((void)0)
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#define xfs_errortag_add_name(mp, tag_name) (-ENOSYS)
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#define xfs_errortag_clearall(mp) (-ENOSYS)
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#endif /* DEBUG */
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/*
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* XFS panic tags -- allow a call to xfs_alert_tag() be turned into
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* a panic by setting fs.xfs.panic_mask in a sysctl.
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*/
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#define XFS_NO_PTAG 0u
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#define XFS_PTAG_IFLUSH (1u << 0)
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#define XFS_PTAG_LOGRES (1u << 1)
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#define XFS_PTAG_AILDELETE (1u << 2)
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#define XFS_PTAG_ERROR_REPORT (1u << 3)
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#define XFS_PTAG_SHUTDOWN_CORRUPT (1u << 4)
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#define XFS_PTAG_SHUTDOWN_IOERROR (1u << 5)
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#define XFS_PTAG_SHUTDOWN_LOGERROR (1u << 6)
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#define XFS_PTAG_FSBLOCK_ZERO (1u << 7)
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#define XFS_PTAG_VERIFIER_ERROR (1u << 8)
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#define XFS_PTAG_MASK (XFS_PTAG_IFLUSH | \
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XFS_PTAG_LOGRES | \
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XFS_PTAG_AILDELETE | \
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XFS_PTAG_ERROR_REPORT | \
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XFS_PTAG_SHUTDOWN_CORRUPT | \
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XFS_PTAG_SHUTDOWN_IOERROR | \
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XFS_PTAG_SHUTDOWN_LOGERROR | \
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XFS_PTAG_FSBLOCK_ZERO | \
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XFS_PTAG_VERIFIER_ERROR)
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#define XFS_PTAG_STRINGS \
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{ XFS_NO_PTAG, "none" }, \
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{ XFS_PTAG_IFLUSH, "iflush" }, \
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{ XFS_PTAG_LOGRES, "logres" }, \
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{ XFS_PTAG_AILDELETE, "aildelete" }, \
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{ XFS_PTAG_ERROR_REPORT , "error_report" }, \
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{ XFS_PTAG_SHUTDOWN_CORRUPT, "corrupt" }, \
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{ XFS_PTAG_SHUTDOWN_IOERROR, "ioerror" }, \
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{ XFS_PTAG_SHUTDOWN_LOGERROR, "logerror" }, \
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{ XFS_PTAG_FSBLOCK_ZERO, "fsb_zero" }, \
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{ XFS_PTAG_VERIFIER_ERROR, "verifier" }
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#endif /* __XFS_ERROR_H__ */
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