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blk: pass from_schedule to non-request unplug functions.

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This will allow md/raid to know why the unplug was called,
and will be able to act according - if !from_schedule it
is safe to perform tasks which could themselves schedule.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
NeilBrown
2012-07-31 09:08:15 +02:00
committed by Jens Axboe
parent 2a7d5559b3
commit 74018dc306
5 changed files with 7 additions and 7 deletions
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2
drivers/md/md.h
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@ -629,7 +629,7 @@ extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
struct mddev *mddev);
extern void md_trim_bio(struct bio *bio, int offset, int size);
extern void md_unplug(struct blk_plug_cb *cb);
extern void md_unplug(struct blk_plug_cb *cb, bool from_schedule);
static inline int mddev_check_plugged(struct mddev *mddev)
{
return !!blk_check_plugged(md_unplug, mddev,