linux-kernel - Re: [PATCH v1 9/9] mm: memcg: put struct task_struct::in_user_fault under CONFIG_MEMCG

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Message-ID: <6arslsp6asbcvz6igp5argwhfmtf7xknsnvsdcfgxsjhlbacy4@xj6itmt5bfn7>
Date: Fri, 28 Jun 2024 17:55:54 -0700
From: Shakeel Butt <shakeel.butt@...ux.dev>
To: Roman Gushchin <roman.gushchin@...ux.dev>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>, 
	Michal Hocko <mhocko@...nel.org>, Muchun Song <muchun.song@...ux.dev>
Subject: Re: [PATCH v1 9/9] mm: memcg: put struct task_struct::in_user_fault
 under CONFIG_MEMCG_V1

On Fri, Jun 28, 2024 at 09:03:17PM GMT, Roman Gushchin wrote:
> The struct task_struct's in_user_fault member is not used by the
> cgroup v2's memory controller, so it can be put under the
> CONFIG_MEMCG_V1 config option. To do so, mem_cgroup_enter_user_fault()
> and mem_cgroup_exit_user_fault() are moved under the CONFIG_MEMCG_V1
> option as well.
> 
> Signed-off-by: Roman Gushchin <roman.gushchin@...ux.dev>

Acked-by: Shakeel Butt <shakeel.butt@...ux.dev>