linux-kernel - Re: Signals to cinit

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Message-ID: <20081112181211.GC3230@us.ibm.com>
Date:	Wed, 12 Nov 2008 10:12:11 -0800
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	Oleg Nesterov <oleg@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Pavel Emelyanov <xemul@...nvz.org>, daniel@...ac.com,
	Nadia Derbey <Nadia.Derbey@...l.net>, clg@...ibm.com,
	Containers <containers@...ts.osdl.org>, sukadev@...ibm.com,
	linux-kernel@...r.kernel.org
Subject: Re: Signals to cinit

Serge E. Hallyn [serue@...ibm.com] wrote:
| Quoting Oleg Nesterov (oleg@...hat.com):
| > > | Perhaps we can start with something like the patch below. Not that I like
| > > | it very much though. We should really place this code under
| > > | CONFIG_I_DO_CARE_ABOUT_NAMESPACES ;)
| > >
| > > CONFIG_PID_NS ?
| > 
| > Ah yes, we have it ;)
| 
| Except I believe all distros at this point enable CONFIG_PID_NS, so
| I'm not sure it's the right thing to use.

But if they do enable CONFIG_PID_NS they would want the signals to
behave correctly ? IIUC, the reason we want to the hide the code
is that it is not clean i.e if its not experimental or error-prone,
are there other reasons someone with CONFIG_PID_NS=y want to hide it ?
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