From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Date: Mon, 7 Dec 2009 11:51:31 +0000 (+0100)
Subject: [S390] cio: use sense-pgid operation for path verification
X-Git-Tag: v2.6.33-rc1~349^2~54
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=52ef0608e3ee4a511725e443c4b572fece22b353;p=pandora-kernel.git

[S390] cio: use sense-pgid operation for path verification

Set-pgid operations fail for some device types under z/VM for which
the hypervisor has already set the pgid. Also reserved devices or
changed pgids are not correctly recognized. Fix these problems by
using a combination of sense-pgid and set-pgid and by also accepting
pre-defined pgid settings.

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