[PATCH 2/2] generic/009: fix test failure with overlay over ext4

[Amir Goldstein <amir73il@gmail.com>]

When running test with overlayfs and ext4 as base fs, we need to
disable extent zeroout on the underlying base fs.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---

Eryu,

Suggestions for a cleaner approach are welcome.

Thanks,
Amir.

 tests/generic/009 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/generic/009 b/tests/generic/009
index fa6ef46..a4f56d0 100755
--- a/tests/generic/009
+++ b/tests/generic/009
@@ -39,6 +39,9 @@ testfile=$TEST_DIR/009.$$
 if [ "$FSTYP" = "ext4" ]; then
 	_ext4_disable_extent_zeroout
 fi
+if [ "$FSTYP" = "overlay" -a "$OVL_BASE_FSTYP" = "ext4" ]; then
+	_ext4_disable_extent_zeroout "$OVL_BASE_TEST_DEV"
+fi
 
 # When PAGE_SIZE > 4096 some filesystems extent layout is different so
 # it would not match the output.
-- 
2.7.4