Both callers take just around so function call, so move it in.
Also remove the now pointless blk_mq_sched_init wrapper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
q->sg_reserved_size = INT_MAX;
- /* Protect q->elevator from elevator_change */
- mutex_lock(&q->sysfs_lock);
-
- /* init elevator */
- if (elevator_init(q)) {
- mutex_unlock(&q->sysfs_lock);
+ if (elevator_init(q))
goto out_exit_flush_rq;
- }
-
- mutex_unlock(&q->sysfs_lock);
return 0;
out_exit_flush_rq:
blk_mq_sched_tags_teardown(q);
q->elevator = NULL;
}
-
-int blk_mq_sched_init(struct request_queue *q)
-{
- int ret;
-
- mutex_lock(&q->sysfs_lock);
- ret = elevator_init(q);
- mutex_unlock(&q->sysfs_lock);
-
- return ret;
-}
void blk_mq_sched_exit_hctx(struct request_queue *q, struct blk_mq_hw_ctx *hctx,
unsigned int hctx_idx);
-int blk_mq_sched_init(struct request_queue *q);
-
static inline bool
blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio)
{
if (!(set->flags & BLK_MQ_F_NO_SCHED)) {
int ret;
- ret = blk_mq_sched_init(q);
+ ret = elevator_init(q);
if (ret)
return ERR_PTR(ret);
}
int elevator_init(struct request_queue *q)
{
struct elevator_type *e = NULL;
- int err;
+ int err = 0;
/*
* q->sysfs_lock must be held to provide mutual exclusion between
* elevator_switch() and here.
*/
- lockdep_assert_held(&q->sysfs_lock);
-
+ mutex_lock(&q->sysfs_lock);
if (unlikely(q->elevator))
- return 0;
+ goto out_unlock;
/*
* Use the default elevator specified by config boot param for
if (q->nr_hw_queues == 1)
e = elevator_get(q, "mq-deadline", false);
if (!e)
- return 0;
+ goto out_unlock;
} else
e = elevator_get(q, CONFIG_DEFAULT_IOSCHED, false);
err = e->ops.sq.elevator_init_fn(q, e);
if (err)
elevator_put(e);
+out_unlock:
+ mutex_unlock(&q->sysfs_lock);
return err;
}