From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> hardware_enable/disable_nolock() check if the hardware is already enabled/disabled and work as nop when they are called multiple times. When VM is created/destroyed, on_each_cpu(hardware_enable/disable_nolock) via kvm_arch_add/del_vm() and module_get/put() are called. It means when kvm module is removed, it's guaranteed that there is no vm and that hardware_disable_nolock() was called on each cpus. Although the module exit function, kvm_exit(), calls on_each_cpu(hardware_disable_nolock), it's essentially nop. Eliminate nop call in kvm_exit(). Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> --- virt/kvm/kvm_main.c | 1 - 1 file changed, 1 deletion(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index ad9b8b7d21fa..d7c3bc14691f 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -6034,7 +6034,6 @@ void kvm_exit(void) unregister_syscore_ops(&kvm_syscore_ops); unregister_reboot_notifier(&kvm_reboot_notifier); cpuhp_remove_state_nocalls(CPUHP_AP_KVM_ONLINE); - on_each_cpu(hardware_disable_nolock, NULL, 1); kvm_arch_hardware_unsetup(); kvm_arch_exit(); kvm_irqfd_exit(); -- 2.25.1
