linux-kernel - Re: [PATCH v2 1/2] pidfd: add P

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Date:   Sat, 27 Jul 2019 21:45:52 +0200
From:   Christian Brauner <christian@...uner.io>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Oleg Nesterov <oleg@...hat.com>, Arnd Bergmann <arnd@...db.de>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Kees Cook <keescook@...omium.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tejun Heo <tj@...nel.org>, David Howells <dhowells@...hat.com>,
        Jann Horn <jannh@...gle.com>,
        Andrew Lutomirski <luto@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Aleksa Sarai <cyphar@...har.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Android Kernel Team <kernel-team@...roid.com>
Subject: Re: [PATCH v2 1/2] pidfd: add P_PIDFD to waitid()

On Sat, Jul 27, 2019 at 09:28:40AM -0700, Linus Torvalds wrote:
> Sorry to keep pestering about the patch series, but with the addition
> of P_PIDFD, I react once again..

That's fine. I don't at all mind being particular about how something
has to be done as long as the result is functional. In this case it
seems we'll end up with something cleaner overall, so sure.

I'll rework the snippets into the actual patch and resend. I'll leave
out the rcu-cleverness you suggested in the other mail though.

Christian