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From: Aleksa Sarai <cyphar@cyphar.com>
To: Christian Brauner <christian.brauner@canonical.com>
Cc: Daniel Colascione <dancol@google.com>,
	joel@joelfernandes.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Tim Murray <timmurray@google.com>,
	Suren Baghdasaryan <surenb@google.com>
Subject: Re: [RFC PATCH] Implement /proc/pid/kill
Date: Wed, 31 Oct 2018 13:56:55 +1100	[thread overview]
Message-ID: <20181031025655.yz7lfhswk7igb3ty@yavin> (raw)
In-Reply-To: <CAPP7u0VQqDvFr=-52+Tmv_K=vT730wG7w9VQqJggsXTPFvaUBQ@mail.gmail.com>

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On 2018-10-31, Christian Brauner <christian.brauner@canonical.com> wrote:
> > I think Aleksa's larger point is that it's useful to treat processes
> > as other file-descriptor-named, poll-able, wait-able resources.
> > Consistency is important. A process is just another system resource,
> > and like any other system resource, you should be open to hold a file
> > descriptor to it and do things to that process via that file
> > descriptor. The precise form of this process-handle FD is up for
> > debate. The existing /proc/$PID directory FD is a good candidate for a
> > process handle FD, since it does almost all of what's needed. But
> > regardless of what form a process handle FD takes, we need it. I don't
> > see a case for continuing to treat processes in a non-unixy,
> > non-file-descriptor-based manner.
> 
> That's what I'm proposing in the API for which I'm gathering feedback.
> I have presented parts of this in various discussions at LSS Europe last week
> and will be at LPC.
> We don't want to rush an API like this though. It was tried before in
> other forms
> and these proposals didn't make it.

:+1: on a well thought-out and generic proposal. As we've discussed
elsewhere, this is an issue that really would be great to (finally)
solve.

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

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  parent reply	other threads:[~2018-10-31  2:57 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-29 22:10 [RFC PATCH] Implement /proc/pid/kill Daniel Colascione
2018-10-30  3:21 ` Joel Fernandes
2018-10-30  8:50   ` Daniel Colascione
2018-10-30 10:39     ` Christian Brauner
2018-10-30 10:40       ` Christian Brauner
2018-10-30 10:48         ` Daniel Colascione
2018-10-30 11:04           ` Christian Brauner
2018-10-30 11:12             ` Daniel Colascione
2018-10-30 11:19               ` Christian Brauner
2018-10-31  5:00                 ` Eric W. Biederman
2018-10-30 17:01     ` Joel Fernandes
2018-10-30  5:00 ` Aleksa Sarai
2018-10-30  9:05   ` Daniel Colascione
2018-10-30 20:45     ` Aleksa Sarai
2018-10-30 21:42       ` Joel Fernandes
2018-10-30 22:23         ` Aleksa Sarai
2018-10-30 22:33           ` Joel Fernandes
2018-10-30 22:49             ` Aleksa Sarai
2018-10-31  0:42               ` Joel Fernandes
2018-10-31  1:59                 ` Daniel Colascione
2018-10-30 23:10             ` Daniel Colascione
2018-10-30 23:23               ` Christian Brauner
2018-10-30 23:55                 ` Daniel Colascione
2018-10-31  2:56                 ` Aleksa Sarai [this message]
2018-10-31  4:24                   ` Joel Fernandes
2018-11-01 20:40                     ` Joel Fernandes
2018-11-02  9:46                       ` Christian Brauner
2018-11-02 14:34                         ` Serge E. Hallyn
2018-10-31  0:57               ` Joel Fernandes
2018-10-31  1:56                 ` Daniel Colascione
2018-10-31  4:47   ` Eric W. Biederman
2018-10-31  4:44 ` Eric W. Biederman
2018-10-31 12:44   ` Oleg Nesterov
2018-10-31 13:27     ` Daniel Colascione
2018-10-31 15:10       ` Oleg Nesterov
2018-10-31 15:16         ` Daniel Colascione
2018-10-31 15:49           ` Oleg Nesterov
2018-11-01 11:53       ` David Laight
2018-11-01 15:50         ` Daniel Colascione
2018-10-31 14:37 ` [PATCH v2] " Daniel Colascione
2018-10-31 15:05   ` Joel Fernandes
2018-10-31 17:33     ` Aleksa Sarai
2018-10-31 21:47       ` Joel Fernandes
2018-10-31 15:59 ` [PATCH v3] " Daniel Colascione
2018-10-31 17:54   ` Tycho Andersen
2018-10-31 18:00     ` Daniel Colascione
2018-10-31 18:17       ` Tycho Andersen
2018-10-31 19:33         ` Daniel Colascione
2018-10-31 20:06           ` Tycho Andersen
2018-11-01 11:33           ` David Laight
2018-11-12  1:19             ` Eric W. Biederman
2018-10-31 16:22 ` [RFC PATCH] " Jann Horn
2018-11-01  4:53   ` Andy Lutomirski
2018-11-12 23:13 ` Pavel Machek

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