brd: support barriers
authorNick Piggin <npiggin@suse.de>
Wed, 15 Apr 2009 08:27:07 +0000 (10:27 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Wed, 15 Apr 2009 10:10:13 +0000 (12:10 +0200)
commitdfbc4752eab33e66f113f9daa2effbe241cd661d
tree3c27a1989452261b681ec42c8a16cce70f91deb3
parent297dbf50d7ab0539cf9cf7f2a66918665a18e45e
brd: support barriers

brd is always ordered (not that it matters, as it is defined not to
survive when the system goes down). So tell the block layer it is
ordered, which might be of help with testing filesystems.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
drivers/block/brd.c