diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-11-28 17:24:36 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-11-28 17:54:49 -0800 |
| commit | 254e3459285cbf2174350bbc0051e475e1bc5196 (patch) | |
| tree | b67e276af1fbba40cfc3c62803e60aa7a42bdb06 /fs/xfs/libxfs | |
| parent | c2beff99eb03866df6fdbd3a93b08fd27eb8bf5c (diff) | |
| download | linux-254e3459285cbf2174350bbc0051e475e1bc5196.tar.bz2 | |
xfs: add debug knob to slow down write for fun
Add a new error injection knob so that we can arbitrarily slow down
pagecache writes to test for race conditions and aberrant reclaim
behavior if the writeback mechanisms are slow to issue writeback. This
will enable functional testing for the ifork sequence counters
introduced in commit 304a68b9c63b ("xfs: use iomap_valid method to
detect stale cached iomaps") that fixes write racing with reclaim
writeback.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_errortag.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_errortag.h b/fs/xfs/libxfs/xfs_errortag.h index f5f629174eca..01a9e86b3037 100644 --- a/fs/xfs/libxfs/xfs_errortag.h +++ b/fs/xfs/libxfs/xfs_errortag.h @@ -62,7 +62,8 @@ #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_MAX 43 +#define XFS_ERRTAG_WRITE_DELAY_MS 43 +#define XFS_ERRTAG_MAX 44 /* * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. @@ -109,5 +110,6 @@ #define XFS_RANDOM_DA_LEAF_SPLIT 1 #define XFS_RANDOM_ATTR_LEAF_TO_NODE 1 #define XFS_RANDOM_WB_DELAY_MS 3000 +#define XFS_RANDOM_WRITE_DELAY_MS 3000 #endif /* __XFS_ERRORTAG_H_ */ |