From: Helge Deller <deller@gmx.de>
To: Theodore Tso <tytso@mit.edu>
Cc: Matt Mackall <mpm@selenic.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org,
Theodore Tso <tytso@mit.edu>
Subject: Re: [e2fsprogs PATCH] Userspace solution to time-based UUID without duplicates
Date: Sun, 16 Dec 2007 22:53:19 +0100 [thread overview]
Message-ID: <200712162253.20928.deller@gmx.de> (raw)
In-Reply-To: <20071210053604.GF17037@thunk.org>
On Monday 10 December 2007, Theodore Tso wrote:
> On Tue, Nov 20, 2007 at 06:00:12PM -0500, Theodore Tso wrote:
> > Basically, the only way to solve this problem 100% in userspace would
> > be with a userspace daemon running as a privileged user, and some kind
> > of Unix domain socket.
> >
> > Patches to implement this in the e2fsprogs UUID library would be
> > greatfully accepted.
>
> This patch creates a userspace uuidd which correctly generates
> time-based (version 1) UUID's, with the clock sequence number stored
> in the filesystem so we correctly detect time going backwards across
> processes and even across reboots.
>
> I believe this patch is a better solution than Helge's kernel patch
> solution or the kludgy patch to e2fsprogs in the the SLES RPM which
> tries to solve this problem in another way, but which has been
> problematic in the past.
>
> Helge, could you try this out and see if it meets your needs?
>
> (Ted's patch to e2fsprogs removed here)
FYI, we are currently discussing and testing this proposed patch to e2fsprogs off-list in Red Hat's bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=233471
Helge
next prev parent reply other threads:[~2007-12-16 21:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-18 19:38 [PATCH] Time-based RFC 4122 UUID generator Helge Deller
2007-11-18 21:05 ` Andrew Morton
2007-11-18 21:34 ` Sam Ravnborg
2007-11-18 21:43 ` Helge Deller
2007-11-19 21:56 ` David Schwartz
2007-11-19 22:58 ` Alan Cox
2007-11-20 6:44 ` H. Peter Anvin
2007-11-20 22:58 ` Helge Deller
2007-11-21 0:20 ` Alan Cox
2007-11-18 21:40 ` Helge Deller
2007-11-20 6:31 ` Matt Mackall
2007-11-20 21:59 ` Helge Deller
2007-11-20 22:55 ` Matt Mackall
2007-11-20 23:11 ` Helge Deller
2007-11-20 23:34 ` Matt Mackall
2007-11-20 23:00 ` Theodore Tso
2007-11-20 23:30 ` Helge Deller
2007-12-10 5:36 ` [e2fsprogs PATCH] Userspace solution to time-based UUID without duplicates Theodore Tso
2007-12-16 21:53 ` Helge Deller [this message]
2007-12-17 0:07 ` Theodore Tso
2007-11-20 6:15 ` [PATCH] Time-based RFC 4122 UUID generator Andrew Morton
2007-11-20 22:40 ` Helge Deller
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