[PATCH 3/7] KVM: Replace smp_mb() with smp_mb_after_atomic() in the kvm_make_all_cpus_request()

[Lan Tianyu]

Signed-off-by: Lan Tianyu <tianyu....@intel.com>
---
 virt/kvm/kvm_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1eae052..ec5aa8d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -170,8 +170,8 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned 
int req)
                kvm_make_request(req, vcpu);
                cpu = vcpu->cpu;
 
-               /* Set ->requests bit before we read ->mode */
-               smp_mb();
+               /* Set ->requests bit before we read ->mode. */
+               smp_mb__after_atomic();
 
                if (cpus != NULL && cpu != -1 && cpu != me &&
                      kvm_vcpu_exiting_guest_mode(vcpu) != OUTSIDE_GUEST_MODE)
-- 
1.8.4.rc0.1.g8f6a3e5.dirty