tree 73b921638494fa3923c94a3930b48bb4f3b20242
parent a94fa154291bb11b1537ac2ff1ae2fd28428e054
author Christian Borntraeger <borntraeger@de.ibm.com> 1406291009 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1406884583 +0200

KVM: s390/mm: Fix page table locking vs. split pmd lock

commit ec66ad66a0de87866be347b5ecc83bd46427f53b (s390/mm: enable
split page table lock for PMD level) activated the split pmd lock
for s390. Turns out that we missed one place: We also have to take
the pmd lock instead of the page table lock when we reallocate the
page tables (==> changing entries in the PMD) during sie enablement.

Cc: stable@vger.kernel.org # 3.15+
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>