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-rw-r--r--block/blk-throttle.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 14dedecfc7e..5b065951204 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -219,6 +219,7 @@ alloc_stats:
static void throtl_pd_init(struct blkcg_gq *blkg)
{
struct throtl_grp *tg = blkg_to_tg(blkg);
+ unsigned long flags;
RB_CLEAR_NODE(&tg->rb_node);
bio_list_init(&tg->bio_lists[0]);
@@ -235,19 +236,20 @@ static void throtl_pd_init(struct blkcg_gq *blkg)
* but percpu allocator can't be called from IO path. Queue tg on
* tg_stats_alloc_list and allocate from work item.
*/
- spin_lock(&tg_stats_alloc_lock);
+ spin_lock_irqsave(&tg_stats_alloc_lock, flags);
list_add(&tg->stats_alloc_node, &tg_stats_alloc_list);
queue_delayed_work(system_nrt_wq, &tg_stats_alloc_work, 0);
- spin_unlock(&tg_stats_alloc_lock);
+ spin_unlock_irqrestore(&tg_stats_alloc_lock, flags);
}
static void throtl_pd_exit(struct blkcg_gq *blkg)
{
struct throtl_grp *tg = blkg_to_tg(blkg);
+ unsigned long flags;
- spin_lock(&tg_stats_alloc_lock);
+ spin_lock_irqsave(&tg_stats_alloc_lock, flags);
list_del_init(&tg->stats_alloc_node);
- spin_unlock(&tg_stats_alloc_lock);
+ spin_unlock_irqrestore(&tg_stats_alloc_lock, flags);
free_percpu(tg->stats_cpu);
}