diff options
| -rw-r--r-- | block/blk-throttle.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 14dedecfc7e8..5b0659512047 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); } |