From: Christoph Hellwig <hch@infradead.org>
To: Jared Hulbert <jaredeh@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Nick Piggin <npiggin@suse.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: vm/fs meetup in september?
Date: Sat, 30 Jun 2007 10:32:43 +0100 [thread overview]
Message-ID: <20070630093243.GD22354@infradead.org> (raw)
In-Reply-To: <6934efce0706261007x5e402eebvc528d2d39abd03a3@mail.gmail.com>
On Tue, Jun 26, 2007 at 10:07:24AM -0700, Jared Hulbert wrote:
> If you have a large array of a non-volatile semi-writeable memory such
> as a highspeed NOR Flash or some of the similar emerging technologies
> in a system. It would be useful to use that memory as an extension of
> RAM. One of the ways you could do that is allow pages to be swapped
> out to this memory. Once there these pages could be read directly,
> but would require a COW procedure on a write access. The reason why I
> think this may be a vm/fs topic is that the hardware makes writing to
> this memory efficiently a non-trivial operation that requires
> management just like a filesystem. Also it seems to me that there are
> probably overlaps between this topic and the recent filemap_xip.c
> discussions.
So what you mean is "swap on flash" ? Defintively sounds like an
interesting topic, although I'm not too sure it's all that
filesystem-related.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Jared Hulbert <jaredeh@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Nick Piggin <npiggin@suse.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: vm/fs meetup in september?
Date: Sat, 30 Jun 2007 10:32:43 +0100 [thread overview]
Message-ID: <20070630093243.GD22354@infradead.org> (raw)
In-Reply-To: <6934efce0706261007x5e402eebvc528d2d39abd03a3@mail.gmail.com>
On Tue, Jun 26, 2007 at 10:07:24AM -0700, Jared Hulbert wrote:
> If you have a large array of a non-volatile semi-writeable memory such
> as a highspeed NOR Flash or some of the similar emerging technologies
> in a system. It would be useful to use that memory as an extension of
> RAM. One of the ways you could do that is allow pages to be swapped
> out to this memory. Once there these pages could be read directly,
> but would require a COW procedure on a write access. The reason why I
> think this may be a vm/fs topic is that the hardware makes writing to
> this memory efficiently a non-trivial operation that requires
> management just like a filesystem. Also it seems to me that there are
> probably overlaps between this topic and the recent filemap_xip.c
> discussions.
So what you mean is "swap on flash" ? Defintively sounds like an
interesting topic, although I'm not too sure it's all that
filesystem-related.
--
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next prev parent reply other threads:[~2007-06-30 9:32 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-24 4:23 vm/fs meetup in september? Nick Piggin
2007-06-24 4:23 ` Nick Piggin
2007-06-25 6:35 ` Christoph Hellwig
2007-06-25 6:35 ` Christoph Hellwig
2007-06-25 17:26 ` Zach Brown
2007-06-25 17:26 ` Zach Brown
2007-06-26 2:35 ` Nick Piggin
2007-06-26 2:35 ` Nick Piggin
2007-06-26 3:23 ` Andreas Dilger
2007-06-26 3:23 ` Andreas Dilger
2007-06-26 12:38 ` Chris Mason
2007-06-26 12:38 ` Chris Mason
2007-06-30 9:31 ` Christoph Hellwig
2007-06-30 9:31 ` Christoph Hellwig
2007-06-30 12:35 ` Martin J. Bligh
2007-06-30 12:35 ` Martin J. Bligh
2007-07-02 6:19 ` Nick Piggin
2007-07-02 6:19 ` Nick Piggin
2007-07-02 23:09 ` Jörn Engel
2007-07-02 23:09 ` Jörn Engel
2007-06-26 0:08 ` Jared Hulbert
2007-06-26 0:08 ` Jared Hulbert
2007-06-26 6:05 ` Christoph Hellwig
2007-06-26 6:05 ` Christoph Hellwig
2007-06-26 17:07 ` Jared Hulbert
2007-06-26 17:07 ` Jared Hulbert
2007-06-30 9:32 ` Christoph Hellwig [this message]
2007-06-30 9:32 ` Christoph Hellwig
2007-06-30 10:02 ` peter
2007-06-30 10:02 ` peter
2007-06-30 10:09 ` Christoph Hellwig
2007-06-30 10:09 ` Christoph Hellwig
2007-06-30 21:58 ` Al Boldi
2007-06-30 21:58 ` Al Boldi
2007-07-02 17:26 ` Jared Hulbert
2007-07-02 17:26 ` Jared Hulbert
2007-07-02 17:44 ` Jared Hulbert
2007-07-02 17:44 ` Jared Hulbert
2007-07-02 23:04 ` Jörn Engel
2007-07-02 23:04 ` Jörn Engel
2007-07-02 23:04 ` Jörn Engel
2007-07-03 0:46 ` Jared Hulbert
2007-07-03 0:46 ` Jared Hulbert
2007-07-03 0:46 ` Jared Hulbert
2007-07-03 12:25 ` Jörn Engel
2007-07-03 12:25 ` Jörn Engel
2007-07-03 12:25 ` Jörn Engel
2007-07-04 0:28 ` Dongjun Shin
2007-07-04 0:28 ` Dongjun Shin
2007-07-04 0:28 ` Dongjun Shin
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