linux-kernel - Re: [RFC PATCH] mm: silence soft lockups from unlock

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Message-ID: <CAHk-=wg=zqJ69JH3S9Ux0XKwZzjKqBP+ruLrmjW6NbNrpMuBNw@mail.gmail.com>
Date:   Thu, 23 Jul 2020 12:03:03 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Oleg Nesterov <oleg@...hat.com>
Cc:     Hugh Dickins <hughd@...gle.com>, Michal Hocko <mhocko@...nel.org>,
        Linux-MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [RFC PATCH] mm: silence soft lockups from unlock_page

On Thu, Jul 23, 2020 at 11:22 AM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> So I think that is a separate issue, generic to our finish_wait() uses.

IOW, I think we should do something like this (this is on top of my
patch, since it has that wake_page_function() change in it, but notice
how we have the exact same issue in our traditional
autoremove_wake_function() usage).

Comments?

                   Linus

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