diff options
| author | NeilBrown <neilb@suse.de> | 2012-07-31 09:08:14 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-07-31 09:08:14 +0200 |
| commit | 9cbb17508808f8a6bdd83354b61e126ac4fa6fed (patch) | |
| tree | bc797d1b5cd829751a333115e6e6d52799fb6df2 /drivers/md/md.h | |
| parent | md: remove plug_cnt feature of plugging. (diff) | |
| download | linux-9cbb17508808f8a6bdd83354b61e126ac4fa6fed.tar.xz linux-9cbb17508808f8a6bdd83354b61e126ac4fa6fed.zip | |
blk: centralize non-request unplug handling.
Both md and umem has similar code for getting notified on an
blk_finish_plug event.
Centralize this code in block/ and allow each driver to
provide its distinctive difference.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 91786c46b85c..8f998e08fb87 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -627,6 +627,12 @@ extern struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask, struct mddev *mddev); extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, struct mddev *mddev); -extern int mddev_check_plugged(struct mddev *mddev); extern void md_trim_bio(struct bio *bio, int offset, int size); + +extern void md_unplug(struct blk_plug_cb *cb); +static inline int mddev_check_plugged(struct mddev *mddev) +{ + return !!blk_check_plugged(md_unplug, mddev, + sizeof(struct blk_plug_cb)); +} #endif /* _MD_MD_H */ |