linux-kernel - Re: [PATCH v2] signal: add procfd

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Message-ID: <20181130024010.ikugzs3lqodrjvz2@yavin>
Date:   Fri, 30 Nov 2018 13:40:10 +1100
From:   Aleksa Sarai <cyphar@...har.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     christian@...uner.io, Andy Lutomirski <luto@...capital.net>,
        Andy Lutomirski <luto@...nel.org>,
        Florian Weimer <fweimer@...hat.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Serge E. Hallyn" <serge@...lyn.com>, Jann Horn <jannh@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        Daniel Colascione <dancol@...gle.com>,
        Tim Murray <timmurray@...gle.com>, linux-man@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH v2] signal: add procfd_signal() syscall

On 2018-11-29, Arnd Bergmann <arnd@...db.de> wrote:
> waitid() probably remains on my plate anyway, and I hope understand
> where we're at with it.

Having a way to wait on a processfd is something we'll eventually need,
though the semantics of zombies might get a little bit hairy. I propose
we work through that rewrite in a future series once this one goes in.

-- 
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>

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