Messages in this thread Patch in this message | | | Date | Fri, 04 Sep 2009 13:07:22 -0700 | From | Greg KH <> | Subject | [patch 10/48] KVM: Dont call get_user_pages(.force = 1) |
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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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