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From: Oleg Nesterov <oleg@tv-sign.ru>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Pavel Emelyanov <xemul@openvz.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] fix setsid() for sub-namespace /sbin/init
Date: Tue, 27 Nov 2007 01:46:49 +0300	[thread overview]
Message-ID: <20071126224649.GA393@tv-sign.ru> (raw)
In-Reply-To: <m1r6icn0s9.fsf@ebiederm.dsl.xmission.com>

On 11/26, Eric W. Biederman wrote:
>
> Oleg Nesterov <oleg@tv-sign.ru> writes:
> 
> > This is different, perhaps we can keep this call. kernel_thread(kernel_init)
> > attaches /sbin/init to init_struct_pid. Nothing bad, and a "good" init should
> > do setsid() anyway. But who knows? Some special environment may expect that
> > getpgrp() != 0. Not that I really disagree on this issue though.
> 
> init starting with session == pgrp == 0 is historical linux behavior.  I consider
> the current 2.6 behavior a temporary aberation from the historical linux behavior.

Ah, OK.

> Plus once we do this the code will be easier to maintain because we have
> removed one obscure special case.

Yes indeed. So we can remove this special case code as soon as copy_process()
is changed.

Oleg.


      reply	other threads:[~2007-11-26 22:48 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-26 14:25 Oleg Nesterov
2007-11-26 14:43 ` Oleg Nesterov
2007-11-26 15:00 ` Pavel Emelyanov
2007-11-26 19:16 ` Eric W. Biederman
2007-11-26 20:11   ` Oleg Nesterov
2007-11-26 21:40     ` Eric W. Biederman
2007-11-26 22:46       ` Oleg Nesterov [this message]

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