From: Will Deacon <will.deacon@arm.com>
Date: Wed, 28 Mar 2012 21:42:47 +0000 (-0700)
Subject: kexec: crash: don't save swapper_pg_dir for !CONFIG_MMU configurations
X-Git-Tag: v3.4-rc1~53^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d034cfab4f7b9e768c5c1caaa56c5bd4805d2b92;p=pandora-kernel.git

kexec: crash: don't save swapper_pg_dir for !CONFIG_MMU configurations

nommu platforms don't have very interesting swapper_pg_dir pointers and
usually just #define them to NULL, meaning that we can't include them in
the vmcoreinfo on the kexec crash path.

This patch only saves the swapper_pg_dir if we have an MMU.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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