On 2018/08/06 18:56, Wei Wang wrote: > On 08/03/2018 08:11 PM, Tetsuo Handa wrote: >> 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. > > Could you point where in the code that would complain it? > I only see two shrinker flags (NUMA_AWARE and MEMCG_AWARE), and they seem not related to that. Where is vb->shrinker.flags initialized?