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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
* Copyright (C) 2017 Oracle.
* All Rights Reserved.
*/
#if !defined(__XFS_ERRORTAG_H_) || defined(XFS_ERRTAG)
#define __XFS_ERRORTAG_H_
/*
* There are two ways to use this header file. The first way is to #include it
* bare, which will define all the XFS_ERRTAG_* error injection knobs for use
* with the XFS_TEST_ERROR macro. The second way is to enclose the #include
* with a #define for an XFS_ERRTAG macro, in which case the header will define
" an XFS_ERRTAGS macro that expands to invoke that XFS_ERRTAG macro for each
* defined error injection knob.
*/
/*
* These are the actual error injection tags. The numbers should be consecutive
* because arrays are sized based on the maximum.
*/
#define XFS_ERRTAG_NOERROR 0
#define XFS_ERRTAG_IFLUSH_1 1
#define XFS_ERRTAG_IFLUSH_2 2
#define XFS_ERRTAG_IFLUSH_3 3
#define XFS_ERRTAG_IFLUSH_4 4
#define XFS_ERRTAG_IFLUSH_5 5
#define XFS_ERRTAG_IFLUSH_6 6
#define XFS_ERRTAG_DA_READ_BUF 7
#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
#define XFS_ERRTAG_ALLOC_READ_AGF 10
#define XFS_ERRTAG_IALLOC_READ_AGI 11
#define XFS_ERRTAG_ITOBP_INOTOBP 12
#define XFS_ERRTAG_IUNLINK 13
#define XFS_ERRTAG_IUNLINK_REMOVE 14
#define XFS_ERRTAG_DIR_INO_VALIDATE 15
#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
#define XFS_ERRTAG_IODONE_IOERR 17
#define XFS_ERRTAG_STRATREAD_IOERR 18
#define XFS_ERRTAG_STRATCMPL_IOERR 19
#define XFS_ERRTAG_DIOWRITE_IOERR 20
#define XFS_ERRTAG_BMAPIFORMAT 21
#define XFS_ERRTAG_FREE_EXTENT 22
#define XFS_ERRTAG_RMAP_FINISH_ONE 23
#define XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE 24
#define XFS_ERRTAG_REFCOUNT_FINISH_ONE 25
#define XFS_ERRTAG_BMAP_FINISH_ONE 26
#define XFS_ERRTAG_AG_RESV_CRITICAL 27
/*
* Drop-writes support removed because write error handling cannot trash
* pre-existing delalloc extents in any useful way anymore. We retain the
* definition so that we can reject it as an invalid value in
* xfs_errortag_valid().
*/
#define XFS_ERRTAG_DROP_WRITES 28
#define XFS_ERRTAG_LOG_BAD_CRC 29
#define XFS_ERRTAG_LOG_ITEM_PIN 30
#define XFS_ERRTAG_BUF_LRU_REF 31
#define XFS_ERRTAG_FORCE_SCRUB_REPAIR 32
#define XFS_ERRTAG_FORCE_SUMMARY_RECALC 33
#define XFS_ERRTAG_IUNLINK_FALLBACK 34
#define XFS_ERRTAG_BUF_IOERROR 35
#define XFS_ERRTAG_REDUCE_MAX_IEXTENTS 36
#define XFS_ERRTAG_BMAP_ALLOC_MINLEN_EXTENT 37
#define XFS_ERRTAG_AG_RESV_FAIL 38
#define XFS_ERRTAG_LARP 39
#define XFS_ERRTAG_DA_LEAF_SPLIT 40
#define XFS_ERRTAG_ATTR_LEAF_TO_NODE 41
#define XFS_ERRTAG_WB_DELAY_MS 42
#define XFS_ERRTAG_WRITE_DELAY_MS 43
#define XFS_ERRTAG_EXCHMAPS_FINISH_ONE 44
#define XFS_ERRTAG_METAFILE_RESV_CRITICAL 45
#define XFS_ERRTAG_MAX 46
/*
* Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
*/
#define XFS_RANDOM_DEFAULT 100
/*
* Table of errror injection knobs. The parameters to the XFS_ERRTAG macro are:
* 1. The XFS_ERRTAG_ flag but without the prefix;
* 2. The name of the sysfs knob; and
* 3. The default value for the knob.
*/
#ifdef XFS_ERRTAG
# undef XFS_ERRTAGS
# define XFS_ERRTAGS \
XFS_ERRTAG(NOERROR, noerror, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IFLUSH_1, iflush1, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IFLUSH_2, iflush2, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IFLUSH_3, iflush3, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IFLUSH_4, iflush4, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IFLUSH_5, iflush5, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IFLUSH_6, iflush6, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(DA_READ_BUF, dareadbuf, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(BTREE_CHECK_LBLOCK, btree_chk_lblk, XFS_RANDOM_DEFAULT/4) \
XFS_ERRTAG(BTREE_CHECK_SBLOCK, btree_chk_sblk, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(ALLOC_READ_AGF, readagf, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IALLOC_READ_AGI, readagi, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(ITOBP_INOTOBP, itobp, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IUNLINK, iunlink, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IUNLINK_REMOVE, iunlinkrm, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(DIR_INO_VALIDATE, dirinovalid, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(BULKSTAT_READ_CHUNK, bulkstat, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(IODONE_IOERR, logiodone, XFS_RANDOM_DEFAULT/10) \
XFS_ERRTAG(STRATREAD_IOERR, stratread, XFS_RANDOM_DEFAULT/10) \
XFS_ERRTAG(STRATCMPL_IOERR, stratcmpl, XFS_RANDOM_DEFAULT/10) \
XFS_ERRTAG(DIOWRITE_IOERR, diowrite, XFS_RANDOM_DEFAULT/10) \
XFS_ERRTAG(BMAPIFORMAT, bmapifmt, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(FREE_EXTENT, free_extent, 1) \
XFS_ERRTAG(RMAP_FINISH_ONE, rmap_finish_one, 1) \
XFS_ERRTAG(REFCOUNT_CONTINUE_UPDATE, refcount_continue_update, 1) \
XFS_ERRTAG(REFCOUNT_FINISH_ONE, refcount_finish_one, 1) \
XFS_ERRTAG(BMAP_FINISH_ONE, bmap_finish_one, 1) \
XFS_ERRTAG(AG_RESV_CRITICAL, ag_resv_critical, 4) \
XFS_ERRTAG(LOG_BAD_CRC, log_bad_crc, 1) \
XFS_ERRTAG(LOG_ITEM_PIN, log_item_pin, 1) \
XFS_ERRTAG(BUF_LRU_REF, buf_lru_ref, 2) \
XFS_ERRTAG(FORCE_SCRUB_REPAIR, force_repair, 1) \
XFS_ERRTAG(FORCE_SUMMARY_RECALC, bad_summary, 1) \
XFS_ERRTAG(IUNLINK_FALLBACK, iunlink_fallback, XFS_RANDOM_DEFAULT/10) \
XFS_ERRTAG(BUF_IOERROR, buf_ioerror, XFS_RANDOM_DEFAULT) \
XFS_ERRTAG(REDUCE_MAX_IEXTENTS, reduce_max_iextents, 1) \
XFS_ERRTAG(BMAP_ALLOC_MINLEN_EXTENT, bmap_alloc_minlen_extent, 1) \
XFS_ERRTAG(AG_RESV_FAIL, ag_resv_fail, 1) \
XFS_ERRTAG(LARP, larp, 1) \
XFS_ERRTAG(DA_LEAF_SPLIT, da_leaf_split, 1) \
XFS_ERRTAG(ATTR_LEAF_TO_NODE, attr_leaf_to_node, 1) \
XFS_ERRTAG(WB_DELAY_MS, wb_delay_ms, 3000) \
XFS_ERRTAG(WRITE_DELAY_MS, write_delay_ms, 3000) \
XFS_ERRTAG(EXCHMAPS_FINISH_ONE, exchmaps_finish_one, 1) \
XFS_ERRTAG(METAFILE_RESV_CRITICAL, metafile_resv_crit, 4)
#endif /* XFS_ERRTAG */
#endif /* __XFS_ERRORTAG_H_ */
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