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@xxxxxx>
---
block/blk-iocost.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 1e7bf0d353227..b8e5f550aa5be 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;
}
--
2.30.2
