From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Thu, 18 Jul 2013 10:17:57 +0000 (+0200)
Subject: s390/kdump: Disable mmap for s390
X-Git-Tag: v3.11-rc2~11^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a74953ff56aa870d6913ef4d81934f5c620c59d;p=pandora-kernel.git

s390/kdump: Disable mmap for s390

The kdump mmap patch series (git commit 83086978c63afd7c73e1c) directly
map the PT_LOADs to memory. On s390 this does not work because the
copy_from_oldmem() function swaps [0,crashkernel size] with
[crashkernel base, crashkernel base+crashkernel size]. The swap
int copy_from_oldmem() was done in order correctly implement /dev/oldmem.

See: http://marc.info/?l=kexec&m=136940802511603&w=2

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