linux-kernel - Re: [RFC v2 02/04] procfs: add hidepid modes as mount options

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Date:	Tue, 14 Jun 2011 18:24:29 +0400
From:	Vasiliy Kulikov <segoon@...nwall.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	"David S. Miller" <davem@...emloft.net>,
	David Rientjes <rientjes@...gle.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Nick Piggin <npiggin@...nel.dk>,
	Miklos Szeredi <mszeredi@...e.cz>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	WANG Cong <xiyou.wangcong@...il.com>
Subject: Re: [RFC v2 02/04] procfs: add hidepid modes as mount options

On Tue, Jun 14, 2011 at 15:54 +0200, Arnd Bergmann wrote:
> On Sunday 12 June 2011, Vasiliy Kulikov wrote:
> > +static const match_table_t tokens = {
> > +       {Opt_hidepid, "hidepid=%u"},
> > +       {Opt_gid, "gid=%u"},
> > +       {Opt_hidenet, "hidenet"},
> > +       {Opt_nohidenet, "nohidenet"},
> > +       {Opt_err, NULL},
> > +};
> 
> I don't really have an opinion on your patch, but it seems that it does more than
> the description explains: The hidenet/nohidenet option is in the patch as well,
> although it doesn't have much of an effect.

Correct, it is just a matter of a patch division granularity.  Alexey said
the patch should be divided into pid and net parts.  I divided it into
(pid + all mount opts parsing) and (actual hidenet usage).  As both pid
and net parts depend on options parsing, they are not fully independent,
and cannot be well splitted (or I just don't see how).

-- 
Vasiliy Kulikov
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