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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
commit 74018dc306
5 changed files with 7 additions and 7 deletions
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2
include/linux/blkdev.h
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@ -923,7 +923,7 @@ struct blk_plug {
#define BLK_MAX_REQUEST_COUNT 16
struct blk_plug_cb;
typedef void (*blk_plug_cb_fn)(struct blk_plug_cb *);
typedef void (*blk_plug_cb_fn)(struct blk_plug_cb *, bool);
struct blk_plug_cb {
struct list_head list;
blk_plug_cb_fn callback;