[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 7/7] KVM: MMU: stop using mmu_spte_get_lockless u
From: |
guangrong . xiao |
Subject: |
[Qemu-devel] [PATCH v2 7/7] KVM: MMU: stop using mmu_spte_get_lockless under mmu-lock |
Date: |
Tue, 20 Jun 2017 17:15:26 +0800 |
From: Xiao Guangrong <address@hidden>
mmu_spte_age() is under the protection of mmu-lock, no reason to use
mmu_spte_get_lockless()
Signed-off-by: Xiao Guangrong <address@hidden>
---
arch/x86/kvm/mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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;
--
2.9.4
- [Qemu-devel] [PATCH v2 0/7] KVM: MMU: fast write protect, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 1/7] KVM: MMU: correct the behavior of mmu_spte_update_no_track, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 2/7] KVM: MMU: introduce possible_writable_spte_bitmap, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 3/7] KVM: MMU: introduce kvm_mmu_write_protect_all_pages, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 5/7] KVM: MMU: allow dirty log without write protect, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 6/7] KVM: MMU: clarify fast_pf_fix_direct_spte, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 4/7] KVM: MMU: enable KVM_WRITE_PROTECT_ALL_MEM, guangrong . xiao, 2017/06/20
- [Qemu-devel] [PATCH v2 7/7] KVM: MMU: stop using mmu_spte_get_lockless under mmu-lock,
guangrong . xiao <=