[PATCH 4.14 50/63] ext4: fix ext4_show_options for file systems w/o journal

[Greg Kroah-Hartman]

From: Debabrata Banerjee <dbane...@akamai.com>

commit 50b29d8f033a7c88c5bc011abc2068b1691ab755 upstream.

Instead of removing EXT4_MOUNT_JOURNAL_CHECKSUM from s_def_mount_opt as
I assume was intended, all other options were blown away leading to
_ext4_show_options() output being incorrect.

Fixes: 1e381f60dad9 ("ext4: do not allow journal_opts for fs w/o journal")
Signed-off-by: Debabrata Banerjee <dbane...@akamai.com>
Signed-off-by: Theodore Ts'o <ty...@mit.edu>
Reviewed-by: Jan Kara <j...@suse.cz>
Cc: sta...@kernel.org
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/ext4/super.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4209,7 +4209,7 @@ static int ext4_fill_super(struct super_
                                 "data=, fs mounted w/o journal");
                        goto failed_mount_wq;
                }
-               sbi->s_def_mount_opt &= EXT4_MOUNT_JOURNAL_CHECKSUM;
+               sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM;
                clear_opt(sb, JOURNAL_CHECKSUM);
                clear_opt(sb, DATA_FLAGS);
                sbi->s_journal = NULL;