linux-kernel - Re: [PATCH v10 0/3] Charge loop device i/o to issuing cgroup

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Message-ID: <YFTRCwqMAhLtST17@dschatzberg-fedora-PC0Y6AEN.dhcp.thefacebook.com>
Date:   Fri, 19 Mar 2021 12:27:55 -0400
From:   Dan Schatzberg <schatzberg.dan@...il.com>
To:     Shakeel Butt <shakeelb@...gle.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Jens Axboe <axboe@...nel.dk>, Tejun Heo <tj@...nel.org>,
        Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Hugh Dickins <hughd@...gle.com>, Roman Gushchin <guro@...com>,
        Muchun Song <songmuchun@...edance.com>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        Alexander Duyck <alexander.h.duyck@...ux.intel.com>,
        Chris Down <chris@...isdown.name>,
        Yafang Shao <laoar.shao@...il.com>,
        Wei Yang <richard.weiyang@...il.com>,
        "open list:BLOCK LAYER" <linux-block@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:CONTROL GROUP (CGROUP)" <cgroups@...r.kernel.org>,
        "open list:MEMORY MANAGEMENT" <linux-mm@...ck.org>
Subject: Re: [PATCH v10 0/3] Charge loop device i/o to issuing cgroup

On Fri, Mar 19, 2021 at 09:20:16AM -0700, Shakeel Butt wrote:
> One suggestion would be to make get_mem_cgroup_from_mm() more generic
> (i.e. handle !mm && active_memcg() case) and avoid
> get_mem_cgroup_from_current() as it might go away.

Yeah, that occurred to me as well. I'll take a stab at doing that.