linux-kernel - Re: [PATCH] autofs: fix the wrong usage of the deprecated task_pgrp

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Message-ID: <20090119174836.GA11295@us.ibm.com>
Date:	Mon, 19 Jan 2009 11:48:38 -0600
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Ian Kent <raven@...maw.net>,
	Andrew Morton <akpm@...ux-foundation.org>, hpa@...or.com,
	Pavel Emelyanov <xemul@...nvz.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] autofs: fix the wrong usage of the deprecated
	task_pgrp_nr()

Quoting Oleg Nesterov (oleg@...hat.com):
> On 01/19, Ian Kent wrote:
> >
> > On Mon, 2009-01-19 at 13:42 +0100, Oleg Nesterov wrote:
> > >
> > > Before the patch
> > >
> > > 	sbi->oz_pgrp != task_pgrp(automount)
> > >
> > > After the patch
> > >
> > > 	sbi->oz_pgrp == task_pgrp(automount)
> > >
> > > And please note that these "!="/"==" apply to any namespace. I mean,
> > > when we call autofs_oz_mode() it does not matter in which namespace
> > > autofs_oz_mode() is executed, we compare "struct pid*", not pid_t.
> >
> > I think your saying that the option pgrp= is broken and should be
> > deprecated
> 
> No, no, sorry if I confused you.
> 
> If the "pgrp=" option was specified, the patch has no effect, and the
> code is correct with or without the patch.

But so there does still need to be a patch modifying parse_options()
to return an error if pgrp= was not specified, right?

-serge
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