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Date: Mon, 14 May 2018 10:34:39 +0200
From: Alexey Gladkov <gladkov.alexey@...il.com>
To: Randy Dunlap <rdunlap@...radead.org>
Cc: Kees Cook <keescook@...omium.org>, Andy Lutomirski <luto@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-hardening@...ts.openwall.com,
	linux-security-module@...r.kernel.org, linux-api@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Akinobu Mita <akinobu.mita@...il.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Jeff Layton <jlayton@...chiereds.net>,
	Ingo Molnar <mingo@...nel.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	aniel Micay <danielmicay@...il.com>,
	Jonathan Corbet <corbet@....net>, bfields@...ldses.org,
	Stephen Rothwell <sfr@...b.auug.org.au>, solar@...nwall.com,
	"Dmitry V. Levin" <ldv@...linux.org>,
	Djalal Harouni <tixxdz@...il.com>
Subject: Re: [PATCH v5 5/7] proc: instantiate only pids that we can ptrace on
 'limit_pids=1' mount option

On Fri, May 11, 2018 at 09:09:04AM -0700, Randy Dunlap wrote:
> On 05/11/2018 02:36 AM, Alexey Gladkov wrote:
> > From: Djalal Harouni <tixxdz@...il.com>
> > 
> > If "limit_pids=1" mount option is set then do not instantiate pids that
> > we can not ptrace. "limit_pids=1" means that procfs should only contain
> > pids that the caller can ptrace.
> 
> Where can I find documentation on these mount options (pidonly, limit_pids)?

The documentation is not ready yet. It will be added in the next version
of the patchset.

-- 
Rgrds, legion

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