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KVM: Don't call get_user_pages(.force = 1)
author
Avi Kivity
<avi@qumranet.com>
Tue, 26 Aug 2008 14:31:31 +0000
(17:31 +0300)
committer
Avi Kivity
<avi@qumranet.com>
Wed, 15 Oct 2008 08:15:23 +0000
(10:15 +0200)
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>
virt/kvm/kvm_main.c
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diff --git
a/virt/kvm/kvm_main.c
b/virt/kvm/kvm_main.c
index
0309571
..
de3b029
100644
(file)
--- a/
virt/kvm/kvm_main.c
+++ b/
virt/kvm/kvm_main.c
@@
-734,7
+734,7
@@
pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn)
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)) {