Re: [PATCH 2/3] kvm tools: Make virtio-console kvm__irq_line thread safe

[Ingo Molnar <mingo@elte.hu>]

* Asias He <asias.hejun@gmail.com> wrote:

> Signed-off-by: Asias He <asias.hejun@gmail.com>
> ---
>  tools/kvm/virtio-console.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/kvm/virtio-console.c b/tools/kvm/virtio-console.c
> index e66d198..492c859 100644
> --- a/tools/kvm/virtio-console.c
> +++ b/tools/kvm/virtio-console.c
> @@ -162,7 +162,9 @@ static void virtio_console_handle_callback(struct kvm *self, void *param)
>  		virt_queue__set_used_elem(vq, head, len);
>  	}
>  
> +	mutex_lock(&console_device.mutex);
>  	kvm__irq_line(self, VIRTIO_CONSOLE_IRQ, 1);
> +	mutex_unlock(&console_device.mutex);
>  }

This looks wrong for similar reasons as for virtio-blk.c.

Thanks,

	Ingo