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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.

  reply	other threads:[~2007-06-30  9:32 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-24  4:23 Nick Piggin
2007-06-25  6:35 ` Christoph Hellwig
2007-06-25 17:26   ` Zach Brown
2007-06-26  2:35   ` Nick Piggin
2007-06-26  3:23     ` Andreas Dilger
2007-06-26 12:38     ` Chris Mason
2007-06-30  9:31     ` Christoph Hellwig
2007-06-30 12:35       ` Martin J. Bligh
2007-06-26  0:08 ` Jared Hulbert
2007-06-26  6:05   ` Christoph Hellwig
2007-06-26 17:07     ` Jared Hulbert
2007-06-30  9:32       ` Christoph Hellwig [this message]
2007-06-30 10:02         ` peter
2007-06-30 10:09           ` Christoph Hellwig
2007-06-30 21:58           ` Al Boldi
2007-07-02 17:26             ` Jared Hulbert
2007-07-02 17:44         ` Jared Hulbert
2007-07-02 23:04           ` Jörn Engel
2007-07-03  0:46             ` Jared Hulbert
2007-07-03 12:25               ` Jörn Engel
2007-07-04  0:28                 ` Dongjun Shin

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