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| author |   Christoph Hellwig <hch@lst.de> | 2022-09-21 20:04:55 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2022-09-26 19:17:27 -0600 |
| commit | 3657647e33dff916a2d2d9df926d9bca3907d34f (patch) | |
| tree | 9e9ebbe7faa5bf9e7a61f9d57789069c3274f48b /block | |
| parent | blk-iocost: pass a gendisk to blk_iocost_init (diff) | |
| download | linux-dev-3657647e33dff916a2d2d9df926d9bca3907d34f.tar.xz linux-dev-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.c | 14 |
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; } |