diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq-tag.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 146fd02659e..8317175a300 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -351,15 +351,12 @@ static void bt_clear_tag(struct blk_mq_bitmap_tags *bt, unsigned int tag) return; wait_cnt = atomic_dec_return(&bs->wait_cnt); + if (unlikely(wait_cnt < 0)) + wait_cnt = atomic_inc_return(&bs->wait_cnt); if (wait_cnt == 0) { -wake: atomic_add(bt->wake_cnt, &bs->wait_cnt); bt_index_atomic_inc(&bt->wake_index); wake_up(&bs->wait); - } else if (wait_cnt < 0) { - wait_cnt = atomic_inc_return(&bs->wait_cnt); - if (!wait_cnt) - goto wake; } } |