[PATCH 70/75] ext4: allow the mount options nodelalloc and data=journal

[Luis Henriques]

3.5.7.19 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Theodore Ts'o <tytso at mit.edu>

commit 59d9fa5c2e9086db11aa287bb4030151d0095a17 upstream.

Commit 26092bf ("ext4: use a table-driven handler for mount options")
wrongly disallows the specifying the mount options nodelalloc and
data=journal simultaneously.  This is incorrect; it should have only
disallowed the combination of delalloc and data=journal
simultaneously.

Reported-by: Piotr Sarna <p.sarna at partner.samsung.com>
Signed-off-by: "Theodore Ts'o" <tytso at mit.edu>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 fs/ext4/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0689c5d..92b883a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1435,7 +1435,7 @@ static const struct mount_opts {
 	{Opt_discard, EXT4_MOUNT_DISCARD, MOPT_SET},
 	{Opt_nodiscard, EXT4_MOUNT_DISCARD, MOPT_CLEAR},
 	{Opt_delalloc, EXT4_MOUNT_DELALLOC, MOPT_SET | MOPT_EXPLICIT},
-	{Opt_nodelalloc, EXT4_MOUNT_DELALLOC, MOPT_CLEAR | MOPT_EXPLICIT},
+	{Opt_nodelalloc, EXT4_MOUNT_DELALLOC, MOPT_CLEAR},
 	{Opt_journal_checksum, EXT4_MOUNT_JOURNAL_CHECKSUM, MOPT_SET},
 	{Opt_journal_async_commit, (EXT4_MOUNT_JOURNAL_ASYNC_COMMIT |
 				    EXT4_MOUNT_JOURNAL_CHECKSUM), MOPT_SET},
-- 
1.8.3.2