From 188112722cce083c8f1a7d0d84f55c2cd885920c Mon Sep 17 00:00:00 2001
From: Jens Axboe <jaxboe@fusionio.com>
Date: Tue, 12 Apr 2011 10:11:24 +0200
Subject: [PATCH] block: add comment on why we save and disable interrupts in
 flush_plug_list()

It's done at the top to avoid doing it for every queue we unplug.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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