[PATCH 1/2] xfsprogs: Add error injection to reduce maximum inode fork extent count

[Chandan Babu R <chandanrlinux@gmail.com>]

This commit adds XFS_ERRTAG_REDUCE_MAX_IEXTENTS error tag which enables
xfs_io's inject command to reduce maximum possible inode fork extent
count to 10.

Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 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 352d27ce..9e3d5ad4 100644
--- a/io/inject.c
+++ b/io/inject.c
@@ -55,6 +55,7 @@ error_tag(char *name)
 		{ XFS_ERRTAG_FORCE_SUMMARY_RECALC,	"bad_summary" },
 		{ XFS_ERRTAG_IUNLINK_FALLBACK,		"iunlink_fallback" },
 		{ XFS_ERRTAG_BUF_IOERROR,		"buf_ioerror" },
+		{ XFS_ERRTAG_REDUCE_MAX_IEXTENTS,	"reduce_max_iextents" },
 		{ XFS_ERRTAG_MAX,			NULL }
 	};
 	int	count;
diff --git a/libxfs/xfs_errortag.h b/libxfs/xfs_errortag.h
index 53b305de..1c56fcce 100644
--- a/libxfs/xfs_errortag.h
+++ b/libxfs/xfs_errortag.h
@@ -56,7 +56,8 @@
 #define XFS_ERRTAG_FORCE_SUMMARY_RECALC			33
 #define XFS_ERRTAG_IUNLINK_FALLBACK			34
 #define XFS_ERRTAG_BUF_IOERROR				35
-#define XFS_ERRTAG_MAX					36
+#define XFS_ERRTAG_REDUCE_MAX_IEXTENTS			36
+#define XFS_ERRTAG_MAX					37
 
 /*
  * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
@@ -97,5 +98,6 @@
 #define XFS_RANDOM_FORCE_SUMMARY_RECALC			1
 #define XFS_RANDOM_IUNLINK_FALLBACK			(XFS_RANDOM_DEFAULT/10)
 #define XFS_RANDOM_BUF_IOERROR				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_REDUCE_MAX_IEXTENTS			1
 
 #endif /* __XFS_ERRORTAG_H_ */
-- 
2.28.0