From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Wed, 15 Apr 2015 11:23:26 +0000 (+0200)
Subject: s390/kvm: remove delayed reallocation of page tables for KVM
X-Git-Tag: omap-for-v4.2/omap1-v2~57^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b46e0a3ec0d7a04af6a091354f1b5e1b952d70a;p=pandora-kernel.git

s390/kvm: remove delayed reallocation of page tables for KVM

Replacing a 2K page table with a 4K page table while a VMA is active
for the affected memory region is fundamentally broken. Rip out the
page table reallocation code and replace it with a simple system
control 'vm.allocate_pgste'. If the system control is set the page
tables for all processes are allocated as full 4K pages, even for
processes that do not need it.

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