From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 25 Sep 2014 15:23:45 +0000 (+0800)
Subject: block: flush: avoid to figure out flush queue unnecessarily
X-Git-Tag: fixes-against-v3.18-rc2~51^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bae352da54a95435f721705d3670a6eaefdcf87;p=pandora-kernel.git

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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