commit 2b8393b43ec672bb263009cd74c056ab01d6ac17
author Ming Lei <tom.leiming@gmail.com> Tue Jun 10 00:16:41 2014 +0800
committer Jens Axboe <axboe@fb.com> Mon Jun 09 10:20:06 2014 -0600
tree 0cfe6b32335a14310ffec05da4e227b9ffea15ca
parent 3ee3237239583a6555db4f297d00eebdbb6d76ad

blk-mq: add timer in blk_mq_start_request

This way will become consistent with non-mq case, also
avoid to update rq->deadline twice for mq.

The comment said: "We do this early, to ensure we are on
the right CPU.", but no percpu stuff is used in blk_add_timer(),
so it isn't necessary. Even when inserting from plug list, there
is no such guarantee at all.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>