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block: remove blk_init_flush() and its pair

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Now mission of the two helpers is over, and just call
blk_alloc_flush_queue() and blk_free_flush_queue() directly.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Ming Lei 2014-09-25 23:23:44 +08:00 committed by Jens Axboe
parent 7c94e1c157
commit ba483388e3
5 changed files with 10 additions and 23 deletions
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5
block/blk-core.c
View file

@ -704,7 +704,8 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
if (!q)
return NULL;
if (blk_init_flush(q))
q->fq = blk_alloc_flush_queue(q);
if (!q->fq)
return NULL;
if (blk_init_rl(&q->root_rl, q, GFP_KERNEL))
@ -740,7 +741,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
return q;
fail:
blk_exit_flush(q);
blk_free_flush_queue(q->fq);
return NULL;
}
EXPORT_SYMBOL(blk_init_allocated_queue);

19
block/blk-flush.c
View file

@ -479,8 +479,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
}
EXPORT_SYMBOL(blkdev_issue_flush);
static struct blk_flush_queue *blk_alloc_flush_queue(
struct request_queue *q)
struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q)
{
struct blk_flush_queue *fq;
int rq_sz = sizeof(struct request);
@ -511,7 +510,7 @@ static struct blk_flush_queue *blk_alloc_flush_queue(
return NULL;
}
static void blk_free_flush_queue(struct blk_flush_queue *fq)
void blk_free_flush_queue(struct blk_flush_queue *fq)
{
/* bio based request queue hasn't flush queue */
if (!fq)
@ -520,17 +519,3 @@ static void blk_free_flush_queue(struct blk_flush_queue *fq)
kfree(fq->flush_rq);
kfree(fq);
}
int blk_init_flush(struct request_queue *q)
{
q->fq = blk_alloc_flush_queue(q);
if (!q->fq)
return -ENOMEM;
return 0;
}
void blk_exit_flush(struct request_queue *q)
{
blk_free_flush_queue(q->fq);
}

3
block/blk-mq.c
View file

@ -1861,7 +1861,8 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
blk_mq_add_queue_tag_set(set, q);
if (blk_init_flush(q))
q->fq = blk_alloc_flush_queue(q);
if (!q->fq)
goto err_hw_queues;
blk_mq_map_swqueue(q);

2
block/blk-sysfs.c
View file

@ -517,7 +517,7 @@ static void blk_release_queue(struct kobject *kobj)
if (q->queue_tags)
__blk_queue_free_tags(q);
blk_exit_flush(q);
blk_free_flush_queue(q->fq);
if (q->mq_ops)
blk_mq_free_queue(q);

4
block/blk.h
View file

@ -39,8 +39,8 @@ static inline void __blk_get_queue(struct request_queue *q)
kobject_get(&q->kobj);
}
int blk_init_flush(struct request_queue *q);
void blk_exit_flush(struct request_queue *q);
struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q);
void blk_free_flush_queue(struct blk_flush_queue *fq);
int blk_init_rl(struct request_list *rl, struct request_queue *q,
gfp_t gfp_mask);