From 3e03d4c46daa849880837d802e41c14132a03ef9 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Thu, 28 Aug 2014 21:21:41 +0200 Subject: [PATCH] KVM: s390/mm: Fix storage key corruption during swapping Since 3.12 or more precisely commit 0944fe3f4a32 ("s390/mm: implement software referenced bits") guest storage keys get corrupted during paging. This commit added another valid->invalid translation for page tables - namely ptep_test_and_clear_young. We have to transfer the storage key into the pgste in that case. Signed-off-by: Christian Borntraeger Acked-by: Martin Schwidefsky Cc: stable@vger.kernel.org # v3.12+ --- Reading git-format-patch failed