tree 86fc792e45f77560815fde5c000184647a5d1476
parent b6416e61012429e0277bd15a229222fd17afc1c1
author David Matlack <dmatlack@google.com> 1481927436 -0800
committer Paolo Bonzini <pbonzini@redhat.com> 1484227997 +0100

KVM: x86: flush pending lapic jump label updates on module unload

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>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>