From 538b75341835e3c2041ff066408de10d24fdc830 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Tue, 16 Sep 2014 10:37:37 -0600
Subject: [PATCH] blk-mq: request deadline must be visible before marking rq as
 started

When we start the request, we set the deadline and flip the bits
marking the request as started and non-complete. However, it's
important that the deadline store is ordered before flipping the
bits, otherwise we could have a small window where the request is
marked started but with an invalid deadline. This can confuse the
timeout handling.

Suggested-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
Reading git-format-patch failed