From: Thibaut VARENE <T-Bone@parisc-linux.org>
Date: Thu, 15 Mar 2007 11:59:19 +0000 (+0100)
Subject: make elv_register() output atomic
X-Git-Tag: v2.6.21-rc6~89^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ffb96c587fa2af0d690dc3548a4a781c477bfb7;p=pandora-kernel.git

make elv_register() output atomic

Booting 2.6.21-rc3-g45592145 I noticed the following on one of my
machines in the bootlog:

io scheduler noop registered<6>Time: jiffies clocksource has been installed.

io scheduler deadline registered (default)

Looking at block/elevator.c, it appears that elv_register() uses two
consecutive printks in a non-atomic way, leading to the above glitch. The
attached trivial patch fixes this issue, by using a single printk.

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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