linux-kernel - Re: [PATCH v2 2/2] pidfd: change pidfd_send_signal() to respect PIDFD

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Message-ID: <20240209154305.GC3282@redhat.com>
Date: Fri, 9 Feb 2024 16:43:05 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: Christian Brauner <brauner@...nel.org>
Cc: Andy Lutomirski <luto@...capital.net>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Tycho Andersen <tycho@...ho.pizza>, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] pidfd: change pidfd_send_signal() to respect
 PIDFD_THREAD

On 02/09, Christian Brauner wrote:
>
> How do you feel about the following (untested...) addition?

LGTM, but let me read this patch once again tomorrow, I have
a headache today.

> I've played with PIDFD_SIGNAL_PROCESS_GROUP as well but that code is
> fairly new to me so I would need some more time.

Heh, I was going to send another email to discuss this ;)

Should be simple, but may be need some simple preparations.

Especially if we also want PIDFD_SIGNAL_SESSION_GROUP.

So the question: do you think we also want PIDFD_SIGNAL_SESSION_GROUP?

Oleg.