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-rw-r--r--block/blk-iocost.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 08036476e6fa..6d36a4bd4382 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -3191,7 +3191,6 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input,
memcpy(qos, ioc->params.qos, sizeof(qos));
enable = ioc->enabled;
user = ioc->user_qos_params;
- spin_unlock_irq(&ioc->lock);
while ((p = strsep(&input, " \t\n"))) {
substring_t args[MAX_OPT_ARGS];
@@ -3258,8 +3257,6 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input,
if (qos[QOS_MIN] > qos[QOS_MAX])
goto einval;
- spin_lock_irq(&ioc->lock);
-
if (enable) {
blk_stat_enable_accounting(disk->queue);
blk_queue_flag_set(QUEUE_FLAG_RQ_ALLOC_TIME, disk->queue);
@@ -3284,6 +3281,7 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input,
blkdev_put_no_open(bdev);
return nbytes;
einval:
+ spin_unlock_irq(&ioc->lock);
ret = -EINVAL;
err:
blkdev_put_no_open(bdev);
@@ -3359,7 +3357,6 @@ static ssize_t ioc_cost_model_write(struct kernfs_open_file *of, char *input,
spin_lock_irq(&ioc->lock);
memcpy(u, ioc->params.i_lcoefs, sizeof(u));
user = ioc->user_cost_model;
- spin_unlock_irq(&ioc->lock);
while ((p = strsep(&input, " \t\n"))) {
substring_t args[MAX_OPT_ARGS];
@@ -3396,7 +3393,6 @@ static ssize_t ioc_cost_model_write(struct kernfs_open_file *of, char *input,
user = true;
}
- spin_lock_irq(&ioc->lock);
if (user) {
memcpy(ioc->params.i_lcoefs, u, sizeof(u));
ioc->user_cost_model = true;
@@ -3410,6 +3406,7 @@ static ssize_t ioc_cost_model_write(struct kernfs_open_file *of, char *input,
return nbytes;
einval:
+ spin_unlock_irq(&ioc->lock);
ret = -EINVAL;
err:
blkdev_put_no_open(bdev);