Re: [PATCH 01/29] mm: shrinker: add shrinker::private_data field

Vlastimil Babka
2023-06-22T14:48:07Z

On 6/22/23 10:53, Qi Zheng wrote:
> To prepare for the dynamic allocation of shrinker instances
> embedded in other structures, add a private_data field to
> struct shrinker, so that we can use shrinker::private_data
> to record and get the original embedded structure.
>
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>

I would fold this to 02/29, less churn.

> ---
> include/linux/shrinker.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
> index 224293b2dd06..43e6fcabbf51 100644
> --- a/include/linux/shrinker.h
> +++ b/include/linux/shrinker.h
> @@ -70,6 +70,8 @@ struct shrinker {
> int seeks; /* seeks to recreate an obj */
> unsigned flags;
>
> + void *private_data;
> +
> /* These are for internal use */
> struct list_head list;
> #ifdef CONFIG_MEMCG