From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Date: Wed, 20 Sep 2006 14:00:01 +0000 (+0200)
Subject: [S390] cio: subchannel evaluation function operates without lock
X-Git-Tag: v2.6.19-rc1~1298^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=564337f34cc10fd8f30329e4e5f14f8995db5711;p=pandora-kernel.git

[S390] cio: subchannel evaluation function operates without lock

css_evaluate_subchannel() operates subchannel without lock which can
lead to erratic behavior caused by concurrent device access. Also
split evaluation function to make it more readable.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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