From 0bae352da54a95435f721705d3670a6eaefdcf87 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 25 Sep 2014 23:23:45 +0800
Subject: [PATCH] block: flush: avoid to figure out flush queue unnecessarily

Just figuring out flush queue at the entry of kicking off flush
machinery and request's completion handler, then pass it through.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Reading git-format-patch failed