From 21a05df547dd0ac532d3a89e241dc504018eb881 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 20 Feb 2014 14:20:54 -0800
Subject: [PATCH] [SCSI] avoid taking host_lock in scsi_run_queue unless
 nessecary

If we don't have starved devices we don't need to take the host lock
to iterate over them.  Also split the function up to be more clear.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Reading git-format-patch failed