blk-cgroup: remove blkcg_drain_queue

[linux-2.6-block.git] / block / blk-cgroup.c

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 708dea92dac8c6037dd1716e3d1bccadf346abac..a229b94d53908aa35ff3f2d8d1fa3532df4c2899 100644 (file)
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1061,26 +1061,6 @@ err_unlock:
        return PTR_ERR(blkg);
 }
 
-/**
- * blkcg_drain_queue - drain blkcg part of request_queue
- * @q: request_queue to drain
- *
- * Called from blk_drain_queue().  Responsible for draining blkcg part.
- */
-void blkcg_drain_queue(struct request_queue *q)
-{
-       lockdep_assert_held(&q->queue_lock);
-
-       /*
-        * @q could be exiting and already have destroyed all blkgs as
-        * indicated by NULL root_blkg.  If so, don't confuse policies.
-        */
-       if (!q->root_blkg)
-               return;
-
-       blk_throtl_drain(q);
-}
-
 /**
  * blkcg_exit_queue - exit and release blkcg part of request_queue
  * @q: request_queue being released