From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Wed, 22 Apr 2015 11:55:59 +0000 (+0200)
Subject: s390/mm: change swap pte encoding and pgtable cleanup
X-Git-Tag: omap-for-v4.2/omap1-v2~57^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1c843b82541fdd4c4644607c942dabc7c7e6f6c;p=pandora-kernel.git

s390/mm: change swap pte encoding and pgtable cleanup

After the file ptes have been removed the bit combination used to
encode non-linear mappings can be reused for the swap ptes. This
frees up a precious pte software bit. Reflect the change in the
swap encoding in the comments and do some cleanup while we are
at it.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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