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block: use bdev_get_queue() in blk-core.c 

Convert bdev->bd_disk->queue to bdev_get_queue(), it's uses a cached
queue pointer and so is faster.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/efc41f880262517c8dc32f932f1b23112f21b255.1634219547.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-10-14 15:03:29 +01:00 committed by Jens Axboe
parent 3caee4634b
commit eab4e02733
1 changed files with 7 additions and 6 deletions
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13
block/blk-core.c
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@ -472,10 +472,11 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
static inline int bio_queue_enter(struct bio *bio)
{
struct gendisk *disk = bio->bi_bdev->bd_disk;
struct request_queue *q = disk->queue;
struct request_queue *q = bdev_get_queue(bio->bi_bdev);
while (!blk_try_enter_queue(q, false)) {
struct gendisk *disk = bio->bi_bdev->bd_disk;
if (bio->bi_opf & REQ_NOWAIT) {
if (test_bit(GD_DEAD, &disk->state))
goto dead;
@ -800,7 +801,7 @@ static inline blk_status_t blk_check_zone_append(struct request_queue *q,
static noinline_for_stack bool submit_bio_checks(struct bio *bio)
{
struct block_device *bdev = bio->bi_bdev;
struct request_queue *q = bdev->bd_disk->queue;
struct request_queue *q = bdev_get_queue(bdev);
blk_status_t status = BLK_STS_IOERR;
struct blk_plug *plug;
@ -962,7 +963,7 @@ static void __submit_bio_noacct(struct bio *bio)
current->bio_list = bio_list_on_stack;
do {
struct request_queue *q = bio->bi_bdev->bd_disk->queue;
struct request_queue *q = bdev_get_queue(bio->bi_bdev);
struct bio_list lower, same;
/*
@ -980,7 +981,7 @@ static void __submit_bio_noacct(struct bio *bio)
bio_list_init(&lower);
bio_list_init(&same);
while ((bio = bio_list_pop(&bio_list_on_stack[0])) != NULL)
if (q == bio->bi_bdev->bd_disk->queue)
if (q == bdev_get_queue(bio->bi_bdev))
bio_list_add(&same, bio);
else
bio_list_add(&lower, bio);
@ -1062,7 +1063,7 @@ void submit_bio(struct bio *bio)
if (unlikely(bio_op(bio) == REQ_OP_WRITE_SAME))
count = queue_logical_block_size(
bio->bi_bdev->bd_disk->queue) >> 9;
bdev_get_queue(bio->bi_bdev)) >> 9;
else
count = bio_sectors(bio);