tree 9dec9e8413951984cfc584d9b5e25424e2d1df3f
parent d3fcdff19054575a368dfdac7407cabffea36c43
author Dennis Zhou <dennis@kernel.org> 1544118578 -0500
committer Jens Axboe <axboe@kernel.dk> 1544246798 -0700

blkcg: put back rcu lock in blkcg_bio_issue_check()

I was a little overzealous in removing the rcu_read_lock() call from
blkcg_bio_issue_check() and it broke blk-throttle. Put it back.

Fixes: e35403a034bf ("blkcg: associate blkg when associating a device")
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>