]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
ext4: fix mount/remount error messages for incompatible mount options
authorPiotr Sarna <p.sarna@partner.samsung.com>
Fri, 9 Aug 2013 03:02:24 +0000 (23:02 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Fri, 9 Aug 2013 03:02:24 +0000 (23:02 -0400)
commit6ae6514b33f941d3386da0dfbe2942766eab1577
tree5ec35d334a0c91fd656d99c8b560eaea5dfca41c
parent59d9fa5c2e9086db11aa287bb4030151d0095a17
ext4: fix mount/remount error messages for incompatible mount options

Commit 5688978 ("ext4: improve handling of conflicting mount options")
introduced incorrect messages shown while choosing wrong mount options.

First of all, both cases of incorrect mount options,
"data=journal,delalloc" and "data=journal,dioread_nolock" result in
the same error message.

Secondly, the problem above isn't solved for remount option: the
mismatched parameter is simply ignored.  Moreover, ext4_msg states
that remount with options "data=journal,delalloc" succeeded, which is
not true.

To fix it up, I added a simple check after parse_options() call to
ensure that data=journal and delalloc/dioread_nolock parameters are
not present at the same time.

Signed-off-by: Piotr Sarna <p.sarna@partner.samsung.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
fs/ext4/super.c