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Subject[patch 10/48] KVM: Dont call get_user_pages(.force = 1)

2.6.27-stable review patch. If anyone has any objections, please let us know.

------------------
From: Avi Kivity <avi@qumranet.com>
(cherry picked from commit d657c7335b97d746aa6123c56504b46c20e37df3)

This is esoteric and only needed to break COW on MAP_SHARED mappings. Since
KVM no longer does these sorts of mappings, breaking COW on them is no longer
necessary.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
virt/kvm/kvm_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -726,7 +726,7 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t
return page_to_pfn(bad_page);
}

- npages = get_user_pages(current, current->mm, addr, 1, 1, 1, page,
+ npages = get_user_pages(current, current->mm, addr, 1, 1, 0, page,
NULL);

if (unlikely(npages != 1)) {



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