Messages in this thread Patch in this message | | | From | Lan Tianyu <> | Subject | [PATCH 3/7] KVM: Replace smp_mb() with smp_mb_after_atomic() in the kvm_make_all_cpus_request() | Date | Sun, 13 Mar 2016 11:10:26 +0800 |
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Signed-off-by: Lan Tianyu <tianyu.lan@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
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