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(parent: 0f7f848) | patch
s390/mm: take the mmap_sem in kvm_s390_shadow_fault()
authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Tue, 2 Feb 2016 11:26:00 +0000 (12:26 +0100)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Mon, 20 Jun 2016 07:54:33 +0000 (09:54 +0200)
commite52f8b6112353e9e8eac64f082bfbc65e64bb2dd
treec6a4ef5a83a70a8ec09cdbff45316cb1ce1ea956tree | snapshot (tar.gz zip)
parent0f7f84891516dc1ff7500fae12143710d2d9d11fcommit | diff
s390/mm: take the mmap_sem in kvm_s390_shadow_fault()

Instead of doing it in the caller, let's just take the mmap_sem
in kvm_s390_shadow_fault(). By taking it as read, we allow parallel
faulting on shadow page tables, gmap shadow code is prepared for that.

Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
arch/s390/kvm/gaccess.c diff | blob | blame | history