Re: [PATCH] autofs: fix the wrong usage of the deprecated task_pgrp_nr()

[Oleg Nesterov <oleg@redhat.com>]

On 01/19, Serge E. Hallyn wrote:
>
> Quoting Oleg Nesterov (oleg@redhat.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?

Why? In that case we should use the caller's pgrp. This is what the
current tries to do, why should the patch change this behaviour?

Oleg.