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Date:   Thu, 11 Apr 2019 09:50:47 -0700
From:   Linus Torvalds <>
To:     Christian Brauner <>
Cc:     Al Viro <>, Jann Horn <>,
        David Howells <>,
        Linux API <>,
        Linux List Kernel Mailing <>,
        "Serge E. Hallyn" <>,
        Andrew Lutomirski <>,
        Arnd Bergmann <>,
        "Eric W. Biederman" <>,
        Kees Cook <>,
        Alexey Dobriyan <>,
        Thomas Gleixner <>,
        Michael Kerrisk-manpages <>,
        Jonathan Kowalski <>,
        "Dmitry V. Levin" <>,
        Andrew Morton <>,
        Oleg Nesterov <>,
        Aleksa Sarai <>,
        Joel Fernandes <>,
        Daniel Colascione <>
Subject: Re: [RFC PATCH] fork: add CLONE_PIDFD

On Wed, Apr 10, 2019 at 4:43 PM Christian Brauner <> wrote:
> RFC-2:
> This alternative patchset uses anonymous file descriptors instead of
> file descriptors from /proc/<pid>.

I think I prefer this one. Your diffstat makes it look bigger, but
that's because you added the example code to use this to that rfc..

Plus making anon_inodes unconditional makes sense anyway.  They are
always selected in practice to begin with.


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