From 6972cae523de728ad5e8dae01da4a631d98b874c Mon Sep 17 00:00:00 2001
From: Dominik Dingel <dingel@linux.vnet.ibm.com>
Date: Wed, 15 Oct 2014 15:29:01 +0200
Subject: [PATCH] s390/mm: missing pte for gmap_ipte_notify should trigger a
 VM_BUG

After fixup_user_fault does not fail we have a writeable pte.
That pte might transform but it should not vanish.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Reading git-format-patch failed