[v2,7/7] KVM: MMU: stop using mmu_spte_get_lockless under mmu-lock

Commit Message

Xiao Guangrong June 20, 2017, 9:15 a.m. UTC

From: Xiao Guangrong <[e-mail]>

mmu_spte_age() is under the protection of mmu-lock, no reason to use
mmu_spte_get_lockless()

Signed-off-by: Xiao Guangrong <[e-mail]>
---
 arch/x86/kvm/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7711953..dc00c32 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -852,7 +852,7 @@  static u64 restore_acc_track_spte(u64 spte)
 /* Returns the Accessed status of the PTE and resets it at the same time. */
 static bool mmu_spte_age(u64 *sptep)
 {
-	u64 spte = mmu_spte_get_lockless(sptep);
+	u64 spte = *sptep;
 
 	if (!is_accessed_spte(spte))
 		return false;