From: Jens Axboe <jaxboe@fusionio.com>
Date: Tue, 12 Apr 2011 08:12:19 +0000 (+0200)
Subject: block: fixup block IO unplug trace call
X-Git-Tag: v2.6.39-rc4~22^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94b5eb28b41cc79d9713696e0005ae167b5afd1b;p=pandora-kernel.git

block: fixup block IO unplug trace call

It was removed with the on-stack plugging, readd it and track the
depth of requests added when flushing the plug.

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