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authorPaolo Bonzini <pbonzini@redhat.com>2020-03-14 12:29:23 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2020-03-16 17:58:59 +0100
commit8e205a6b2a06764a4c2bfc9e1a6a8a8e7920faf8 (patch)
treef28323015730289c4f9d57a023bd404ab016cf30 /tools/perf/scripts/python/netdev-times.py
parent212617dbb6bac2a21dec6ef7d6012d96bb6dbb5d (diff)
KVM: X86: correct meaningless kvm_apicv_activated() check
After test_and_set_bit() for kvm->arch.apicv_inhibit_reasons, we will always get false when calling kvm_apicv_activated() because it's sure apicv_inhibit_reasons do not equal to 0. What the code wants to do, is check whether APICv was *already* active and if so skip the costly request; we can do this using cmpxchg. Reported-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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