From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 7 Oct 2013 10:12:32 +0000 (+0200)
Subject: s390/mm: do not initialize storage keys
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~58^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=127c1feffff8078400f01372712c600d0f9eef51;p=pandora-kernel.git

s390/mm: do not initialize storage keys

With dirty and referenced bits implemented in software it is unnecessary
to initialize the storage key for every page. With this patch not a single
storage key operation is done for a system that does not use KVM.
For KVM set_pte_at/pgste_set_key will do the initialization for the guest
view of the storage key when the mapping for the page is established in
the host.

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