From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 8 Oct 2012 05:54:32 +0000 (+0200)
Subject: s390/mm,vmem: fix vmem_add_mem()/vmem_remove_range()
X-Git-Tag: v3.7-rc1~62^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc7e48aad35bf98c84cf21aed5c2f100c5ce009b;p=pandora-kernel.git

s390/mm,vmem: fix vmem_add_mem()/vmem_remove_range()

vmem_add_mem() should only then insert a large page if pmd_none() is true
for the specific entry. We might have a leftover from a previous mapping.
In addition make vmem_remove_range()'s page table walk code more complete
and fix a couple of potential endless loops (which can never happen :).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

Reading git-diff-tree failed