From 9294bbed78926a895516ec016ba23033f58d1a88 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew.r.wilcox@intel.com>
Date: Mon, 7 Feb 2011 12:45:24 -0500
Subject: [PATCH] NVMe: Handle the congestion list a little better

In the bio completion handler, check for bios on the congestion list
for this NVM queue.  Also, lock the congestion list in the make_request
function as the queue may end up being shared between multiple CPUs.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
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