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block: remove the unused lock argument to rq_qos_throttle

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Unused now that the legacy request path is gone.

Reviewed-by: Hannes Reinecke <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-11-14 17:02:09 +01:00 • committed by Jens Axboe
commit d53375608e
5 changed files with 15 additions and 36 deletions
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24
block/blk-iolatency.c
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@ -276,10 +276,8 @@ static inline bool iolatency_may_queue(struct iolatency_grp *iolat,
static void __blkcg_iolatency_throttle(struct rq_qos *rqos,
struct iolatency_grp *iolat,
spinlock_t *lock, bool issue_as_root,
bool issue_as_root,
bool use_memdelay)
__releases(lock)
__acquires(lock)
{
struct rq_wait *rqw = &iolat->rq_wait;
unsigned use_delay = atomic_read(&lat_to_blkg(iolat)->use_delay);
@ -311,14 +309,7 @@ static void __blkcg_iolatency_throttle(struct rq_qos *rqos,
if (iolatency_may_queue(iolat, &wait, first_block))
break;
first_block = false;
if (lock) {
spin_unlock_irq(lock);
io_schedule();
spin_lock_irq(lock);
} else {
io_schedule();
}
io_schedule();
} while (1);
finish_wait(&rqw->wait, &wait);
@ -478,8 +469,7 @@ static void check_scale_change(struct iolatency_grp *iolat)
scale_change(iolat, direction > 0);
}
static void blkcg_iolatency_throttle(struct rq_qos *rqos, struct bio *bio,
spinlock_t *lock)
static void blkcg_iolatency_throttle(struct rq_qos *rqos, struct bio *bio)
{
struct blk_iolatency *blkiolat = BLKIOLATENCY(rqos);
struct blkcg *blkcg;
@ -495,13 +485,11 @@ static void blkcg_iolatency_throttle(struct rq_qos *rqos, struct bio *bio,
bio_associate_blkcg(bio, &blkcg->css);
blkg = blkg_lookup(blkcg, q);
if (unlikely(!blkg)) {
if (!lock)
spin_lock_irq(q->queue_lock);
spin_lock_irq(q->queue_lock);
blkg = blkg_lookup_create(blkcg, q);
if (IS_ERR(blkg))
blkg = NULL;
if (!lock)
spin_unlock_irq(q->queue_lock);
spin_unlock_irq(q->queue_lock);
}
if (!blkg)
goto out;
@ -518,7 +506,7 @@ out:
}
check_scale_change(iolat);
__blkcg_iolatency_throttle(rqos, iolat, lock, issue_as_root,
__blkcg_iolatency_throttle(rqos, iolat, issue_as_root,
(bio->bi_opf & REQ_SWAP) == REQ_SWAP);
blkg = blkg->parent;
}