diff options
| author | Tao Guo <glorioustao@gmail.com> | 2012-06-13 21:17:21 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-06-13 21:17:21 +0200 |
| commit | 32587371ad3db2f9d335de10dbd8cffd4fff5669 (patch) | |
| tree | 46d8de7a745a2b15ade6f9d5f187e743dcb5d1e9 /drivers/block/xen-blkback | |
| parent | splice: fix racy pipe->buffers uses (diff) | |
| download | linux-32587371ad3db2f9d335de10dbd8cffd4fff5669.tar.xz linux-32587371ad3db2f9d335de10dbd8cffd4fff5669.zip | |
umem: fix up unplugging
Fix a regression introduced by 7eaceaccab5f40 ("block: remove per-queue
plugging"). In that patch, Jens removed the whole mm_unplug_device()
function, which used to be the trigger to make umem start to work.
We need to implement unplugging to make umem start to work, or I/O will
never be triggered.
Signed-off-by: Tao Guo <Tao.Guo@emc.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Shaohua Li <shli@kernel.org>
Cc: <stable@vger.kernel.org>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/xen-blkback')
0 files changed, 0 insertions, 0 deletions