ext4: reject journal options for ext2 mounts

There is no reason to allow ext2 filesystems be mounted with journal
mount options. So, this patch adds them to the MOPT_NO_EXT2 mount
options list.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d2c9a79..14909cd 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1394,9 +1394,9 @@ static const struct mount_opts {
        {Opt_stripe, 0, MOPT_GTE0},
        {Opt_resuid, 0, MOPT_GTE0},
        {Opt_resgid, 0, MOPT_GTE0},
-       {Opt_journal_dev, 0, MOPT_GTE0},
-       {Opt_journal_path, 0, MOPT_STRING},
-       {Opt_journal_ioprio, 0, MOPT_GTE0},
+       {Opt_journal_dev, 0, MOPT_NO_EXT2 | MOPT_GTE0},
+       {Opt_journal_path, 0, MOPT_NO_EXT2 | MOPT_STRING},
+       {Opt_journal_ioprio, 0, MOPT_NO_EXT2 | MOPT_GTE0},
        {Opt_data_journal, EXT4_MOUNT_JOURNAL_DATA, MOPT_NO_EXT2 | MOPT_DATAJ},
        {Opt_data_ordered, EXT4_MOUNT_ORDERED_DATA, MOPT_NO_EXT2 | MOPT_DATAJ},
        {Opt_data_writeback, EXT4_MOUNT_WRITEBACK_DATA,