From 3657647e33dff916a2d2d9df926d9bca3907d34f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 21 Sep 2022 20:04:55 +0200 Subject: 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 Reviewed-by: Andreas Herrmann Acked-by: Tejun Heo Link: https://lore.kernel.org/r/20220921180501.1539876-12-hch@lst.de Signed-off-by: Jens Axboe --- block/blk-iocost.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'block') 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; } -- cgit v1.2.3