[PATCH] KVM: MMU: oom handling

When beginning to process a page fault, make sure we have enough shadow pages
available to service the fault.  If not, free some pages.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --cc drivers/kvm/kvm.h
Simple merge

diff --cc drivers/kvm/mmu.c
Simple merge

diff --cc drivers/kvm/paging_tmpl.h
Simple merge

diff --cc drivers/kvm/svm.c
Simple merge

diff --cc drivers/kvm/vmx.c
Simple merge