Re: [PATCH -next] memcg, oom: cleanup unused memcg_oom_gfp_mask and memcg_oom_order

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On Thu 09-05-24 03:26:28, Xiu Jianfeng wrote:
> Since commit 857f21397f71 ("memcg, oom: remove unnecessary check in
> mem_cgroup_oom_synchronize()"), memcg_oom_gfp_mask and memcg_oom_order
> are no longer used any more.
> 
> Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>

Acked-by: Michal Hocko <mhocko@xxxxxxxx>

Thanks!
> ---
>  include/linux/sched.h | 2 --
>  mm/memcontrol.c       | 2 --
>  2 files changed, 4 deletions(-)
> 
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 8d1cf672ac4c..61591ac6eab6 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -1449,8 +1449,6 @@ struct task_struct {
>  
>  #ifdef CONFIG_MEMCG
>  	struct mem_cgroup		*memcg_in_oom;
> -	gfp_t				memcg_oom_gfp_mask;
> -	int				memcg_oom_order;
>  
>  	/* Number of pages to reclaim on returning to userland: */
>  	unsigned int			memcg_nr_pages_over_high;
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 5d4da23264fa..d127c9c5fabf 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -2192,8 +2192,6 @@ static bool mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int order)
>  		if (current->in_user_fault) {
>  			css_get(&memcg->css);
>  			current->memcg_in_oom = memcg;
> -			current->memcg_oom_gfp_mask = mask;
> -			current->memcg_oom_order = order;
>  		}
>  		return false;
>  	}
> -- 
> 2.34.1

-- 
Michal Hocko
SUSE Labs




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