ext4: return EROFS if device is r/o and journal replay is needed

commit 4753d8a24d upstream.

If the file system requires journal recovery, and the device is
read-ony, return EROFS to the mount system call.  This allows xfstests
generic/050 to pass.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Theodore Ts'o 2017-02-05 01:26:48 -05:00 • committed by Greg Kroah-Hartman
commit d6dcec965b