From mboxrd@z Thu Jan  1 00:00:00 1970
From: Linus Torvalds <torvalds@osdl.org>
Subject: Re: silent semantic changes with reiser4
Date: Sun, 29 Aug 2004 10:57:10 -0700 (PDT)
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Cc: Helge Hafting <helgehaf@aitel.hist.no>, Rik van Riel <riel@redhat.com>,
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   reiserfs-list@namesys.com, Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
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To: Hans Reiser <reiser@namesys.com>
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On Sun, 29 Aug 2004, Hans Reiser wrote:
> >
> >Realize that openat() works independently of any special streams, it's
> >fundamentally a "look up name starting from this file" (rather than
> >"starting from root" or "starting from cwd").
>
> well, isn't that namespace fragmentation by definition?

No.

There's no difference between

	fd = open("/usr/bin/yes", O_RDWR);

and

	dirfd = open("/usr/bin", O_RDONLY | O_DIRECTORY);
	fd = openat(dirfd, "yes", O_RDWR);

apart from error checking and permissions..

No new namespace.

Only O_XATTR implies a "namespace change".

		Linus