• Paolo Bonzini's avatar
    KVM: add missing memory barrier in kvm_{make,check}_request · 2e4682ba
    Paolo Bonzini authored
    kvm_make_request and kvm_check_request imply a producer-consumer
    relationship; add implicit memory barriers to them.  There was indeed
    already a place that was adding an explicit smp_mb() to order between
    kvm_check_request and the processing of the request.  That memory
    barrier can be removed (as an added benefit, kvm_check_request can use
    smp_mb__after_atomic which is free on x86).
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
irq_comm.c 11 KB