linux-kernel - Re: [PATCH v4 0/2] proc: Ensure we see the exit of each process tid exactly

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Message-ID: <20200428180540.GB29960@redhat.com>
Date:   Tue, 28 Apr 2020 20:05:41 +0200
From:   Oleg Nesterov <oleg@...hat.com>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Alexey Gladkov <legion@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexey Gladkov <gladkov.alexey@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: Re: [PATCH v4 0/2] proc: Ensure we see the exit of each process tid
 exactly

On 04/28, Eric W. Biederman wrote:
>
> In short I don't think this change will introduce any regressions.
>
> Eric W. Biederman (2):
>       rculist: Add hlists_swap_heads_rcu
>       proc: Ensure we see the exit of each process tid exactly once

Eric, sorry, I got lost.

Both changes look good to me, feel free to add my ack, but I presume
this is on top of next_tgid/lookup_task changes ? If yes, why did not
you remove has_group_leader_pid?

Oleg.