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KVM: MMU: use kvm_release_pfn_clean to release pfn

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The current code depends on the fact that fault_page is the normal page,
however, we will use the error code instead of these dummy pages in the
later patch, so we use kvm_release_pfn_clean to release pfn which will
release the error code properly

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Xiao Guangrong 2012-07-26 11:57:43 +08:00 committed by Avi Kivity
parent e9bda6f6f9
commit 3b2bd2f800
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/mmu.c
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@ -3275,7 +3275,7 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
if (!async)
return false; /* *pfn has correct page already */
put_page(pfn_to_page(*pfn));
kvm_release_pfn_clean(*pfn);
if (!prefault && can_do_async_pf(vcpu)) {
trace_kvm_try_async_get_page(gva, gfn);