Re: [PATCH RESEND] KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()

[Avi Kivity]

 On 08/17/2010 05:08 AM, Wei Yongjun wrote:
 Add kvm_release_page_clean() after is_error_page() to avoid
 leakage of error page.

Applied, thanks.

-- 
error compiling committee.c: too many arguments to function

--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH RESEND] KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()

[Wei Yongjun]

Add kvm_release_page_clean() after is_error_page() to avoid
leakage of error page.

Signed-off-by: Wei Yongjun yj...@cn.fujitsu.com
---
 arch/powerpc/kvm/book3s.c |4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index eee97b5..7656b6d 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -455,8 +455,10 @@ static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, 
struct kvmppc_pte *pte)
int i;
 
hpage = gfn_to_page(vcpu-kvm, pte-raddr  PAGE_SHIFT);
-   if (is_error_page(hpage))
+   if (is_error_page(hpage)) {
+   kvm_release_page_clean(hpage);
return;
+   }
 
hpage_offset = pte-raddr  ~PAGE_MASK;
hpage_offset = ~0xFFFULL;
-- 
1.7.0.4


--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html