From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 14 Jul 2008 07:57:28 +0000 (+0200)
Subject: [S390] sclp: fix possible deadlock on cpu rescan.
X-Git-Tag: v2.6.27-rc1~1112^2~65
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b9732ca1cb2c18129d2f984b8de02db141b7b830;p=pandora-kernel.git

[S390] sclp: fix possible deadlock on cpu rescan.

smp_rescan_cpus() calls get_online_cpus() from a multithreaded
workqueue context. This may deadlock. This is the same bug as in
arch/s390/kernel/topology.c. This patch can be reverted as soon as
Oleg's patch gets merged.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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