[PATCH 4/5] xfs: xfs_fsr requires working preallocation support

[Christoph Hellwig <hch@xxxxxx>]

Check that the file system actually supports preallocation for defrag
tests that end up calling xfs_fsr, as they can't be supported in
always_cow mode.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 common/defrag | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common/defrag b/common/defrag
index df249dfd..79485f0d 100644
--- a/common/defrag
+++ b/common/defrag
@@ -8,6 +8,7 @@ _require_defrag()
 {
     case "$FSTYP" in
     xfs)
+        _require_xfs_io_command "falloc"
         DEFRAG_PROG="$XFS_FSR_PROG"
 	;;
     ext4|ext4dev)
-- 
2.19.1