tree db4aca3e40185423e465ef5a67f44658ff292443
parent 16b3de6652c7aef151f38726faf90f0dbc9e9c71
author Tejun Heo <tj@kernel.org> 1357747513 -0800
committer Tejun Heo <tj@kernel.org> 1357747513 -0800

block: RCU free request_queue

RCU free request_queue so that blkcg_gq->q can be dereferenced under
RCU lock.  This will be used to implement hierarchical stats.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>