From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Wed, 7 Jan 2015 10:00:02 +0000 (+0100)
Subject: s390/mm: avoid using pmd_to_page for !USE_SPLIT_PMD_PTLOCKS
X-Git-Tag: fixes-v4.0-rc1~134^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fbc89c952f004fb9191c23605a1428df6dd39a90;p=pandora-kernel.git

s390/mm: avoid using pmd_to_page for !USE_SPLIT_PMD_PTLOCKS

pmd_to_page() is only available if USE_SPLIT_PMD_PTLOCKS is defined.
The use of pmd_to_page in the gmap code can cause compile errors if
NR_CPUS is smaller than SPLIT_PTLOCK_CPUS. Do not use pmd_to_page
outside of USE_SPLIT_PMD_PTLOCKS sections.

Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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