[PATCH] xfs/073: avoid large recurise diff

[Christoph Hellwig <hch@lst.de>]

xfs/073 has been failing for me for a while on most of my test setups
with:

diff: memory exhausted

from the large recursive diff it does.  Replace that with a pipe using
md5sum to reduce the memory usage.

Based on a snipplet from Darrick Wong.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 tests/xfs/073 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/xfs/073 b/tests/xfs/073
index c7616b9e9..0f96fdb09 100755
--- a/tests/xfs/073
+++ b/tests/xfs/073
@@ -76,7 +76,8 @@ _verify_copy()
 	fi
 
 	echo comparing new image files to old
-	diff -Naur $source_dir $target_dir
+	(cd $source_dir; find . -type f -print0 | xargs -0 md5sum) | \
+	(cd $target_dir ; md5sum -c --quiet)
 
 	echo comparing new image directories to old
 	find $source_dir | _filter_path $source_dir > $tmp.manifest1
-- 
2.43.0