From: Christoph Hellwig <hch@infradead.org>
To: "Jörn Engel" <joern@wohnheim.fh-wedel.de>
Cc: Christoph Hellwig <hch@infradead.org>,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, Jan Blunck <j.blunck@tu-harburg.de>
Subject: Re: [PATCH 1/3] copyfile: generic_sendpage
Date: Sat, 4 Sep 2004 18:25:56 +0100 [thread overview]
Message-ID: <20040904182556.A16774@infradead.org> (raw)
In-Reply-To: <20040904172223.GC9765@wohnheim.fh-wedel.de>; from joern@wohnheim.fh-wedel.de on Sat, Sep 04, 2004 at 07:22:23PM +0200
On Sat, Sep 04, 2004 at 07:22:23PM +0200, Jörn Engel wrote:
> On Sat, 4 September 2004 18:12:20 +0100, Christoph Hellwig wrote:
> >
> > > o unionmount - you might remember Jan Blunck's fix to ext3
> >
> > Could you give some context please?
>
> Trivial example union mount:
>
> Top layer: <empty>
> 2nd layer: foo
>
> Writes to foo have to be done in the top layer, so foo has to be
> copied up first. And since that has to be done inside the kernel,
> any possible implementation will be similar to my code.
>
> For further details on unionmount, you should ask Jan directly. But
> for politeness' sake, please wait a month or two, so he can focus on
> his university exams before getting into the flamewars. ;)
Oh, I know what union mounts are. But I wonder who's hacking on them
as they need some major VFS surgey to get right.
next prev parent reply other threads:[~2004-09-04 17:26 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-04 16:57 [PATCH 1/3] copyfile: generic_sendpage Jörn Engel
2004-09-04 16:59 ` [PATCH 2/3] copyfile: sendfile Jörn Engel
2004-09-04 17:04 ` [PATCH 3/3] copyfile: copyfile Jörn Engel
2004-09-04 17:08 ` Jörn Engel
2004-09-04 17:11 ` [PATCH 2/3] copyfile: sendfile Christoph Hellwig
2004-09-04 17:16 ` Jörn Engel
2004-09-04 17:12 ` [PATCH 1/3] copyfile: generic_sendpage Christoph Hellwig
2004-09-04 17:22 ` Jörn Engel
2004-09-04 17:25 ` Christoph Hellwig [this message]
2004-09-07 8:32 ` Jan Blunck
2004-09-04 22:39 ` Andrew Morton
2004-09-05 0:16 ` William Lee Irwin III
2004-09-05 0:23 ` Andrew Morton
2004-09-06 11:54 ` Jörn Engel
2004-09-06 12:45 ` Gunnar Ritter
2004-09-06 13:35 ` Jörn Engel
2004-09-06 14:32 ` Gunnar Ritter
2004-09-06 14:46 ` Oliver Neukum
2004-09-06 15:51 ` Gunnar Ritter
2004-09-07 11:09 ` Jörn Engel
2004-09-07 11:45 ` Jörn Engel
2004-09-07 12:03 ` Gunnar Ritter
2004-09-07 12:08 ` Jörn Engel
2004-09-07 12:32 ` Gunnar Ritter
2004-09-07 11:48 ` Gunnar Ritter
2004-09-07 12:04 ` Jörn Engel
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