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s390/mm: missing pte for gmap_ipte_notify should trigger a VM_BUG
authorDominik Dingel <dingel@linux.vnet.ibm.com>
Wed, 15 Oct 2014 13:29:01 +0000 (15:29 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 27 Oct 2014 12:27:29 +0000 (13:27 +0100)
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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