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a35eb41519
Create an error injection point that enables us to simulate being critically low on per-AG block reservations. This should enable us to simulate this specific ENOSPC condition so that we can test falling back to a regular file copy. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
166 lines
5.8 KiB
C
166 lines
5.8 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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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extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
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const char *filename, int linenum, void *ra);
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extern void xfs_corruption_error(const char *tag, int level,
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struct xfs_mount *mp, void *p, const char *filename,
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int linenum, void *ra);
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extern void xfs_verifier_error(struct xfs_buf *bp);
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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, mem) \
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xfs_corruption_error(e, lvl, mp, mem, \
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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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/*
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* Macros to set EFSCORRUPTED & return/branch.
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*/
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#define XFS_WANT_CORRUPTED_GOTO(mp, x, l) \
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{ \
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int fs_is_ok = (x); \
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ASSERT(fs_is_ok); \
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if (unlikely(!fs_is_ok)) { \
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XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
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XFS_ERRLEVEL_LOW, mp); \
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error = -EFSCORRUPTED; \
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goto l; \
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} \
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}
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#define XFS_WANT_CORRUPTED_RETURN(mp, x) \
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{ \
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int fs_is_ok = (x); \
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ASSERT(fs_is_ok); \
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if (unlikely(!fs_is_ok)) { \
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XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
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XFS_ERRLEVEL_LOW, mp); \
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return -EFSCORRUPTED; \
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} \
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}
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/*
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* error injection tags - the labels can be anything you want
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* but each tag should have its own unique number
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*/
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#define XFS_ERRTAG_NOERROR 0
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#define XFS_ERRTAG_IFLUSH_1 1
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#define XFS_ERRTAG_IFLUSH_2 2
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#define XFS_ERRTAG_IFLUSH_3 3
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#define XFS_ERRTAG_IFLUSH_4 4
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#define XFS_ERRTAG_IFLUSH_5 5
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#define XFS_ERRTAG_IFLUSH_6 6
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#define XFS_ERRTAG_DA_READ_BUF 7
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#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
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#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
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#define XFS_ERRTAG_ALLOC_READ_AGF 10
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#define XFS_ERRTAG_IALLOC_READ_AGI 11
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#define XFS_ERRTAG_ITOBP_INOTOBP 12
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#define XFS_ERRTAG_IUNLINK 13
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#define XFS_ERRTAG_IUNLINK_REMOVE 14
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#define XFS_ERRTAG_DIR_INO_VALIDATE 15
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#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
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#define XFS_ERRTAG_IODONE_IOERR 17
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#define XFS_ERRTAG_STRATREAD_IOERR 18
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#define XFS_ERRTAG_STRATCMPL_IOERR 19
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#define XFS_ERRTAG_DIOWRITE_IOERR 20
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#define XFS_ERRTAG_BMAPIFORMAT 21
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#define XFS_ERRTAG_FREE_EXTENT 22
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#define XFS_ERRTAG_RMAP_FINISH_ONE 23
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#define XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE 24
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#define XFS_ERRTAG_REFCOUNT_FINISH_ONE 25
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#define XFS_ERRTAG_BMAP_FINISH_ONE 26
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#define XFS_ERRTAG_AG_RESV_CRITICAL 27
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#define XFS_ERRTAG_MAX 28
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/*
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* Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
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*/
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#define XFS_RANDOM_DEFAULT 100
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#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
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#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
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#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
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#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
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#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
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#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
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#define XFS_RANDOM_FREE_EXTENT 1
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#define XFS_RANDOM_RMAP_FINISH_ONE 1
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#define XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE 1
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#define XFS_RANDOM_REFCOUNT_FINISH_ONE 1
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#define XFS_RANDOM_BMAP_FINISH_ONE 1
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#define XFS_RANDOM_AG_RESV_CRITICAL 4
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#ifdef DEBUG
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extern int xfs_error_test_active;
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extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
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#define XFS_NUM_INJECT_ERROR 10
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#define XFS_TEST_ERROR(expr, mp, tag, rf) \
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((expr) || (xfs_error_test_active && \
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xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
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(rf))))
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extern int xfs_errortag_add(unsigned int error_tag, struct xfs_mount *mp);
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extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud);
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#else
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#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
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#define xfs_errortag_add(tag, mp) (ENOSYS)
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#define xfs_errortag_clearall(mp, loud) (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 xfs_panic_mask in a sysctl.
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*/
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#define XFS_NO_PTAG 0
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#define XFS_PTAG_IFLUSH 0x00000001
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#define XFS_PTAG_LOGRES 0x00000002
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#define XFS_PTAG_AILDELETE 0x00000004
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#define XFS_PTAG_ERROR_REPORT 0x00000008
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#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
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#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
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#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
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#define XFS_PTAG_FSBLOCK_ZERO 0x00000080
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#endif /* __XFS_ERROR_H__ */
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