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>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
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.