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KVM: Add a might_sleep() annotation to gfn_to_page()
author
Avi Kivity
<avi@qumranet.com>
Sun, 21 Oct 2007 09:03:36 +0000
(11:03 +0200)
committer
Avi Kivity
<avi@qumranet.com>
Wed, 30 Jan 2008 15:52:55 +0000
(17:52 +0200)
This will help trap accesses to guest memory in atomic context.
Signed-off-by: Avi Kivity <avi@qumranet.com>
drivers/kvm/kvm_main.c
patch
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diff --git
a/drivers/kvm/kvm_main.c
b/drivers/kvm/kvm_main.c
index
a6e3165
..
453e98e
100644
(file)
--- a/
drivers/kvm/kvm_main.c
+++ b/
drivers/kvm/kvm_main.c
@@
-993,6
+993,8
@@
struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
struct page *page[1];
int npages;
+ might_sleep();
+
gfn = unalias_gfn(kvm, gfn);
slot = __gfn_to_memslot(kvm, gfn);
if (!slot) {