Re: [PATCH v3 2/2] virtio_balloon: replace oom notifier with shrinker

[Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>]

On 2018/08/03 17:32, Wei Wang wrote:
> +static int virtio_balloon_register_shrinker(struct virtio_balloon *vb)
> +{
> +	vb->shrinker.scan_objects = virtio_balloon_shrinker_scan;
> +	vb->shrinker.count_objects = virtio_balloon_shrinker_count;
> +	vb->shrinker.batch = 0;
> +	vb->shrinker.seeks = DEFAULT_SEEKS;

Why flags field is not set? If vb is allocated by kmalloc(GFP_KERNEL)
and is nowhere zero-cleared, KASAN would complain it.

> +
> +	return register_shrinker(&vb->shrinker);
> +}