From: Brian Foster <bfoster@xxxxxxxxxx>
Source kernel commit: 7376d74547344598008d00419eae0caa5f50f4f0
Introduce an error tag to randomly fail async buffer writes. This is
primarily to facilitate testing of the XFS error configuration
mechanism.
Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>
Reviewed-by: Allison Collins <allison.henderson@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Allison Collins <allison.henderson@xxxxxxxxxx>
---
io/inject.c | 1 +
libxfs/xfs_errortag.h | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/io/inject.c b/io/inject.c
index 4191c84..352d27c 100644
--- a/io/inject.c
+++ b/io/inject.c
@@ -54,6 +54,7 @@ error_tag(char *name)
{ XFS_ERRTAG_FORCE_SCRUB_REPAIR, "force_repair" },
{ XFS_ERRTAG_FORCE_SUMMARY_RECALC, "bad_summary" },
{ XFS_ERRTAG_IUNLINK_FALLBACK, "iunlink_fallback" },
+ { XFS_ERRTAG_BUF_IOERROR, "buf_ioerror" },
{ XFS_ERRTAG_MAX, NULL }
};
int count;
diff --git a/libxfs/xfs_errortag.h b/libxfs/xfs_errortag.h
index 79e6c4f..2486dab 100644
--- a/libxfs/xfs_errortag.h
+++ b/libxfs/xfs_errortag.h
@@ -55,7 +55,8 @@
#define XFS_ERRTAG_FORCE_SCRUB_REPAIR 32
#define XFS_ERRTAG_FORCE_SUMMARY_RECALC 33
#define XFS_ERRTAG_IUNLINK_FALLBACK 34
-#define XFS_ERRTAG_MAX 35
+#define XFS_ERRTAG_BUF_IOERROR 35
+#define XFS_ERRTAG_MAX 36
/*
* Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
@@ -95,5 +96,6 @@
#define XFS_RANDOM_FORCE_SCRUB_REPAIR 1
#define XFS_RANDOM_FORCE_SUMMARY_RECALC 1
#define XFS_RANDOM_IUNLINK_FALLBACK (XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_BUF_IOERROR XFS_RANDOM_DEFAULT
#endif /* __XFS_ERRORTAG_H_ */
--
2.7.4
