linux-kernel - Re: [RFC v1 2/4] kernel/fork.c: implement new process_mmput

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Message-ID: <YZI57bFLvBptKkYj@dhcp22.suse.cz>
Date:   Mon, 15 Nov 2021 11:43:57 +0100
From:   Michal Hocko <mhocko@...e.com>
To:     Claudio Imbrenda <imbrenda@...ux.ibm.com>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org, thuth@...hat.com,
        frankja@...ux.ibm.com, borntraeger@...ibm.com,
        Ulrich.Weigand@...ibm.com, david@...hat.com, ultrachin@....com,
        akpm@...ux-foundation.org, vbabka@...e.cz, brookxu.cn@...il.com,
        xiaoggchen@...cent.com, linuszeng@...cent.com, yihuilu@...cent.com,
        daniel.m.jordan@...cle.com, axboe@...nel.dk, legion@...nel.org,
        peterz@...radead.org, aarcange@...hat.com, christian@...uner.io,
        tglx@...utronix.de
Subject: Re: [RFC v1 2/4] kernel/fork.c: implement new process_mmput_async
 syscall

On Fri 12-11-21 17:53:09, Claudio Imbrenda wrote:
[...]
> Of course, but this also means that it's not possible to stop the OOM
> killer while the teardown is in progress,

Blocking the OOM killer and depend on the userspace to make a forward
progress is not acceptable solution.
-- 
Michal Hocko
SUSE Labs