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authorDavid Matlack <dmatlack@google.com>2016-12-16 22:30:36 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-19 19:17:59 (GMT)
commit5ed21cc0cf2650756167dfd492799e214a69384e (patch)
treef50a1eea7c2c459e464e81372d6edc7dd769111c /block
parent483ecebb22c16369ecb607e4bfd5f9767b56555f (diff)
downloadlinux-5ed21cc0cf2650756167dfd492799e214a69384e.tar.xz
KVM: x86: flush pending lapic jump label updates on module unload
commit cef84c302fe051744b983a92764d3fcca933415d upstream. KVM's lapic emulation uses static_key_deferred (apic_{hw,sw}_disabled). These are implemented with delayed_work structs which can still be pending when the KVM module is unloaded. We've seen this cause kernel panics when the kvm_intel module is quickly reloaded. Use the new static_key_deferred_flush() API to flush pending updates on module unload. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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