linux-kernel - Re: [PATCH 0/4] Helper patches for PTY namespaces

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Message-ID: <20080412183514.GO9785@ZenIV.linux.org.uk>
Date:	Sat, 12 Apr 2008 19:35:14 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	sukadev@...ibm.com
Cc:	Andrew Morton <akpm@...l.org>, serue@...ibm.com,
	matthltc@...ibm.com, "Eric W. Biederman" <ebiederm@...ssion.com>,
	hpa@...or.com, Pavel Emelyanov <xemul@...nvz.org>,
	Containers <containers@...ts.osdl.org>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 0/4] Helper patches for PTY namespaces

On Sat, Apr 12, 2008 at 10:29:33AM -0700, sukadev@...ibm.com wrote:
> 
> Some simple helper patches to enable implementation of multiple PTY
> (or device) namespaces.
> 
> 	[PATCH 1/4]: Propagate error code from devpts_pty_new
> 	[PATCH 2/4]: Factor out PTY index allocation
> 	[PATCH 3/4]: Move devpts globals into init_pts_ns
> 	[PATCH 3/4]: Enable multiple mounts of /dev/pts
> 
> This patchset is based on earlier versions developed by Serge Hallyn
> and Matt Helsley.

*boggle*

Care to explain how that "namespace" is different from devpts instance?
IOW, why the devil do you guys ignore Occam's Razor?

Frankly, this nonsense has gone far enough; I can buy the need to compensate
for shitty APIs (sockets, non-fs-based-IPC, etc.), but devpts *is* *a*
*fucking* *filesystem*.  Already.  And as such it's already present in
normal, real, we-really-shouldn't-have-any-other-if-not-for-ancient-stupidity
namespace.

Why not simply allow independent instances of devpts and be done with that?
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