From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Tue, 13 Mar 2012 15:25:08 +0000 (-0400)
Subject: [S390] kernel: Pass correct stack for smp_call_ipl_cpu()
X-Git-Tag: v3.4-rc1~135^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6da39f26cfe475704ec521723192e520e8f51b8;p=pandora-kernel.git

[S390] kernel: Pass correct stack for smp_call_ipl_cpu()

Currently pcpu_devices->panic_stack is passed to pcpu_delegate() in
smp_call_ipl_cpu(). This is wrong because pcpu_delegate() expects
the bottom (high address) of the stack and pcpu_devices->panic_stack
points to the top (low address). We now pass the bottom of the stack
which is pcpu_devices->panic_stack + PAGE_SIZE.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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