block: use bdev_get_queue() in bdev.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/a352936ce5d9ac719645b1e29b173d931ebcdc02.1634219547.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/bdev.c b/block/bdev.c
index fed8d0c..cff0bb3 100644 (file)
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -327,12 +327,12 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
        if (!ops->rw_page || bdev_get_integrity(bdev))
                return result;
 
-       result = blk_queue_enter(bdev->bd_disk->queue, 0);
+       result = blk_queue_enter(bdev_get_queue(bdev), 0);
        if (result)
                return result;
        result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
                              REQ_OP_READ);
-       blk_queue_exit(bdev->bd_disk->queue);
+       blk_queue_exit(bdev_get_queue(bdev));
        return result;
 }
 
@@ -363,7 +363,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
 
        if (!ops->rw_page || bdev_get_integrity(bdev))
                return -EOPNOTSUPP;
-       result = blk_queue_enter(bdev->bd_disk->queue, 0);
+       result = blk_queue_enter(bdev_get_queue(bdev), 0);
        if (result)
                return result;
 
@@ -376,7 +376,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
                clean_page_buffers(page);
                unlock_page(page);
        }
-       blk_queue_exit(bdev->bd_disk->queue);
+       blk_queue_exit(bdev_get_queue(bdev));
        return result;
 }