[PATCH v2 3/7] KVM: fix searching async gfn in kvm_async_pf_gfn_slot

Xiao Guangrong
2010-11-01T08:56:10Z

Don't search later slots if the slot is empty

Acked-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/kvm/x86.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2cfdf2d..9b543f4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6206,8 +6206,8 @@ static u32 kvm_async_pf_gfn_slot(struct kvm_vcpu *vcpu, gfn_t gfn)
u32 key = kvm_async_pf_hash_fn(gfn);

for (i = 0; i < roundup_pow_of_two(ASYNC_PF_PER_VCPU) &&
- (vcpu->arch.apf.gfns[key] != gfn ||
- vcpu->arch.apf.gfns[key] == ~0); i++)
+ (vcpu->arch.apf.gfns[key] != gfn &&
+ vcpu->arch.apf.gfns[key] != ~0); i++)
key = kvm_async_pf_next_probe(key);

return key;
--
1.7.0.4