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authorChristoph Hellwig <hch@lst.de>2022-09-21 20:04:55 +0200
committerJens Axboe <axboe@kernel.dk>2022-09-27 03:17:27 +0200
commit3657647e33dff916a2d2d9df926d9bca3907d34f (patch)
tree9e9ebbe7faa5bf9e7a61f9d57789069c3274f48b /block
parentblk-iocost: pass a gendisk to blk_iocost_init (diff)
downloadlinux-3657647e33dff916a2d2d9df926d9bca3907d34f.tar.xz
linux-3657647e33dff916a2d2d9df926d9bca3907d34f.zip
blk-iocost: cleanup ioc_qos_write
Use a local disk variable instead of retrieving the disk and request_queue over and over by various means. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-12-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-iocost.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 6fb1c24b3504..c0f69bc99db9 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -3167,6 +3167,7 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input,
size_t nbytes, loff_t off)
{
struct block_device *bdev;
+ struct gendisk *disk;
struct ioc *ioc;
u32 qos[NR_QOS_PARAMS];
bool enable, user;
@@ -3177,12 +3178,13 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input,
if (IS_ERR(bdev))
return PTR_ERR(bdev);
- ioc = q_to_ioc(bdev_get_queue(bdev));
+ disk = bdev->bd_disk;
+ ioc = q_to_ioc(disk->queue);
if (!ioc) {
- ret = blk_iocost_init(bdev->bd_disk);
+ ret = blk_iocost_init(disk);
if (ret)
goto err;
- ioc = q_to_ioc(bdev_get_queue(bdev));
+ ioc = q_to_ioc(disk->queue);
}
spin_lock_irq(&ioc->lock);
@@ -3259,11 +3261,11 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input,
spin_lock_irq(&ioc->lock);
if (enable) {
- blk_stat_enable_accounting(ioc->rqos.q);
- blk_queue_flag_set(QUEUE_FLAG_RQ_ALLOC_TIME, ioc->rqos.q);
+ blk_stat_enable_accounting(disk->queue);
+ blk_queue_flag_set(QUEUE_FLAG_RQ_ALLOC_TIME, disk->queue);
ioc->enabled = true;
} else {
- blk_queue_flag_clear(QUEUE_FLAG_RQ_ALLOC_TIME, ioc->rqos.q);
+ blk_queue_flag_clear(QUEUE_FLAG_RQ_ALLOC_TIME, disk->queue);
ioc->enabled = false;
}