[PATCH 2/2] common: teach _require_odirect that ext4 encryption doesn't support DIO

Theodore Ts'o
2016-04-02T16:56:21Z

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
common/rc | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/common/rc b/common/rc
index 2ccca3b..961601b 100644
--- a/common/rc
+++ b/common/rc
@@ -1916,6 +1916,10 @@ _require_xfs_db_command()
# check that kernel and filesystem support direct I/O
_require_odirect()
{
+ if [ $FSTYP = "ext4" ] &&
+ echo "$MOUNT_OPTIONS" | grep -q "test_dummy_encryption" ; then
+ _notrun "ext4 encryption doesn't support O_DIRECT"
+ fi
testfile=$TEST_DIR/$$.direct
$XFS_IO_PROG -F -f -d -c "pwrite 0 20k" $testfile > /dev/null 2>&1
if [ $? -ne 0 ]; then
--
2.5.0