Re: [PATCH v1 13/14] mm: memcg: put cgroup v1-related members of task_struct under config option

From: Roman Gushchin
Date: Mon Jun 03 2024 - 15:16:22 EST


On Sun, Jun 02, 2024 at 08:00:04PM +0800, Lance Yang wrote:
> Hi Roman,
>
> I noticed that you changed '#ifdef CONFIG_MEMCG' to '#ifdef CONFIG_MEMCG_V1'.
> However, it seems like the comments for the corresponding #else and #endif were
> not updated accordingly.

Hi Lance!

Good catch, thank you!

I gonna update the patch, if there will be another version.
Otherwise I hope Andrew can pick your change as a fixlet.

Thanks!

>
> It might be something like:
>
> diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
> index ba55ebd15354..796cfa842346 100644
> --- a/include/linux/memcontrol.h
> +++ b/include/linux/memcontrol.h
> @@ -1883,7 +1883,7 @@ static inline void mem_cgroup_unlock_pages(void)
> rcu_read_unlock();
> }
>
> -#else /* CONFIG_MEMCG */
> +#else /* CONFIG_MEMCG_V1 */
> static inline
> unsigned long memcg1_soft_limit_reclaim(pg_data_t *pgdat, int order,
> gfp_t gfp_mask,
> @@ -1922,6 +1922,6 @@ static inline bool mem_cgroup_oom_synchronize(bool wait)
> return false;
> }
>
> -#endif /* CONFIG_MEMCG */
> +#endif /* CONFIG_MEMCG_V1 */
>
> #endif /* _LINUX_MEMCONTROL_H */
> ---
>
> Thanks,
> Lance