[PATCH v2] ext4/053: update the test_dummy_encryption tests

[Eric Biggers <ebiggers@kernel.org>]

From: Eric Biggers <ebiggers@google.com>

Kernel commit 5f41fdaea63d ("ext4: only allow test_dummy_encryption when
supported") tightened the requirements on when the test_dummy_encryption
mount option is accepted.  Update ext4/053 accordingly.

Move the test cases to later in the file to group them with the other
test cases that use do_mkfs to add custom mkfs options instead of using
the "default" filesystem that the test creates at the beginning.

Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
---

v2: mention the commit ID now that it is merged, and add a Reviewed-by

 tests/ext4/053 | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/tests/ext4/053 b/tests/ext4/053
index 187a2515..23e553c5 100755
--- a/tests/ext4/053
+++ b/tests/ext4/053
@@ -511,20 +511,6 @@ for fstype in ext2 ext3 ext4; do
 	mnt noinit_itable
 	mnt max_dir_size_kb=4096
 
-	if _has_kernel_config CONFIG_FS_ENCRYPTION; then
-		mnt test_dummy_encryption
-		mnt test_dummy_encryption=v1
-		mnt test_dummy_encryption=v2
-		not_mnt test_dummy_encryption=v3
-		not_mnt test_dummy_encryption=
-	else
-		mnt test_dummy_encryption ^test_dummy_encryption
-		mnt test_dummy_encryption=v1 ^test_dummy_encryption=v1
-		mnt test_dummy_encryption=v2 ^test_dummy_encryption=v2
-		mnt test_dummy_encryption=v3 ^test_dummy_encryption=v3
-		not_mnt test_dummy_encryption=
-	fi
-
 	if _has_kernel_config CONFIG_FS_ENCRYPTION_INLINE_CRYPT; then
 		mnt inlinecrypt
 	else
@@ -686,6 +672,27 @@ for fstype in ext2 ext3 ext4; do
 	mnt_then_not_remount defaults jqfmt=vfsv1
 	remount defaults grpjquota=,usrjquota= ignored
 
+	echo "== Testing the test_dummy_encryption option" >> $seqres.full
+	# Since kernel commit 5f41fdaea63d ("ext4: only allow
+	# test_dummy_encryption when supported"), the test_dummy_encryption
+	# option is only allowed when the filesystem has the encrypt feature and
+	# the kernel has CONFIG_FS_ENCRYPTION.  The encrypt feature requirement
+	# implies that this option is never allowed on ext2 or ext3 mounts.
+	if [[ $fstype == ext4 ]] && _has_kernel_config CONFIG_FS_ENCRYPTION; then
+		do_mkfs -O encrypt $SCRATCH_DEV ${SIZE}k
+		mnt test_dummy_encryption
+		mnt test_dummy_encryption=v1
+		mnt test_dummy_encryption=v2
+		not_mnt test_dummy_encryption=bad
+		not_mnt test_dummy_encryption=
+		do_mkfs -O ^encrypt $SCRATCH_DEV ${SIZE}k
+	fi
+	not_mnt test_dummy_encryption
+	not_mnt test_dummy_encryption=v1
+	not_mnt test_dummy_encryption=v2
+	not_mnt test_dummy_encryption=bad
+	not_mnt test_dummy_encryption=
+
 done #for fstype in ext2 ext3 ext4; do
 
 $UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1

base-commit: d3cc66012a287b6db81aad408b6970a4a96a67da
-- 
2.36.1