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Date:   Sat, 27 Jul 2019 21:42:17 +0200
From:   Christian Brauner <christian@brauner.io>
To:     Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
        Oleg Nesterov <oleg@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Kees Cook <keescook@chromium.org>,
        Joel Fernandes <joel@joelfernandes.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Tejun Heo <tj@kernel.org>, David Howells <dhowells@redhat.com>,
        Jann Horn <jannh@google.com>,
        Andrew Lutomirski <luto@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Aleksa Sarai <cyphar@cyphar.com>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Android Kernel Team <kernel-team@android.com>
Subject: Re: [PATCH v2 1/2] pidfd: add P_PIDFD to waitid()
Message-ID: <20190727194217.izpetvy5fz4dqj7q@brauner.io>
References: <20190727085201.11743-1-christian@brauner.io>
 <20190727085201.11743-2-christian@brauner.io>
 <CAHk-=whrh5+aHmgqP9YhZ-yzCtUWT8fPi08ZSJdxusx7aHXOQQ@mail.gmail.com>
 <CAHk-=wgtGyQTLLb7m=jkMY5hOcj+TsOKSoeoJC7Jc1_h_XL+tw@mail.gmail.com>
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On Sat, Jul 27, 2019 at 09:41:25AM -0700, Linus Torvalds wrote:
> On Sat, Jul 27, 2019 at 9:28 AM Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > Something like
> >
> >   struct pid *fd_to_pid(unsigned int fd)
> >   {
> >         struct fd f;
> >         struct pid *pid;
> ...
> 
> I forgot to put my usual disclaimer about TOTALLY UNTESTED GARBAGE in
> that email. I want to make that part clear: that code snippet was
> meant as a rough guide of direction, not as a "this works".
> 
> Hopefully that was clear.

Yeah. I don't take code someone else has written without verifying or
testing into my own code. And I hope people do the same with mine. :)

Christian