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Commit a30a0509 authored by Lan Tianyu's avatar Lan Tianyu Committed by Paolo Bonzini
Browse files

KVM: Replace smp_mb() with smp_mb_after_atomic() in the kvm_make_all_cpus_request() 



Signed-off-by: default avatarLan Tianyu <tianyu.lan@intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 36ca7e0a

virt/kvm/kvm_main.c

+2 −2
Original line number Diff line number Diff line
@@ -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)