diff options
Diffstat (limited to 'block/ll_rw_blk.c')
| -rw-r--r-- | block/ll_rw_blk.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index ddd9253f9d5..dcbd6ff1fa3 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -2734,6 +2734,18 @@ long blk_congestion_wait(int rw, long timeout) EXPORT_SYMBOL(blk_congestion_wait); +/** + * blk_congestion_end - wake up sleepers on a congestion queue + * @rw: READ or WRITE + */ +void blk_congestion_end(int rw) +{ + wait_queue_head_t *wqh = &congestion_wqh[rw]; + + if (waitqueue_active(wqh)) + wake_up(wqh); +} + /* * Has to be called with the request spinlock acquired */ |