From: Martin Schwidefsky Date: Tue, 27 Aug 2013 06:19:27 +0000 (+0200) Subject: s390/pgtable: fix mprotect for single-threaded KVM guests X-Git-Tag: v3.12-rc1~187^2~12 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0196c642f76c469c17ca09d7f904bccc123bac09;p=pandora-kernel.git s390/pgtable: fix mprotect for single-threaded KVM guests For a single-threaded KVM guest ptep_modify_prot_start will not use IPTE, the invalid bit will therefore not be set. If DEBUG_VM is set pgste_set_key called by ptep_modify_prot_commit will complain about the missing invalid bit. ptep_modify_prot_start should set the invalid bit in all cases. Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Martin Schwidefsky --- Reading git-diff-tree failed