From: "Jörn Engel" <joern@logfs.org>
To: Alexander Belyakov <abelyako@googlemail.com>
Cc: dwmw2@infradead.org, tglx@linutronix.de,
linux-mtd@lists.infradead.org,
Alexey Korolev <akorolev@infradead.org>
Subject: Re: [PATCH][RFC] NAND subpage read feature. Take 2.
Date: Mon, 5 May 2008 17:39:59 +0200 [thread overview]
Message-ID: <20080505153959.GA17330@logfs.org> (raw)
In-Reply-To: <fe810cf0805050510g2bf7ef4brfaf4352454dd204b@mail.gmail.com>
On Mon, 5 May 2008 16:10:46 +0400, Alexander Belyakov wrote:
> On Mon, May 5, 2008 at 11:37 AM, Jörn Engel <joern@logfs.org> wrote:
> >
> > Actually, logfs caching would help jffs2 as well, as soon as you have
> > several parallel readers. It should be made generic mtd caching. And
> > when made generic, it would effectively defeat this patch, as all reads
> > would be (DRAM-) pagesized.
> >
> > We could theoretically use buggerheads and do the caching in smaller
> > granularities.
>
> We'd like to look at this new mtd caching layer. Have you working
> prototype to play with?
Take a look into fs/logfs/dev_mtd.c in the logfs patch or git tree:
http://lazybastard.org/~joern/patches/logfs.patch.773
http://git.kernel.org/?p=linux/kernel/git/joern/logfs.git;a=summary
It is currently part of logfs, but moving it over to
drivers/mtd/mtdcore.c shouldn't be too hard.
Jörn
--
Optimizations always bust things, because all optimizations are, in
the long haul, a form of cheating, and cheaters eventually get caught.
-- Larry Wall
next prev parent reply other threads:[~2008-05-05 15:40 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-30 12:13 [PATCH][RFC] NAND subpage read feature. Take 2 Alexey Korolev
2008-05-01 4:40 ` Hamish Moffatt
2008-05-01 5:34 ` MTD PARTITION Aneesh
2008-05-14 17:13 ` [PATCH][RFC] NAND subpage read feature. Take 2 Alexey Korolev
2008-05-01 20:25 ` Jörn Engel
2008-05-04 8:46 ` Alexander Belyakov
2008-05-05 7:37 ` Jörn Engel
2008-05-05 12:10 ` Alexander Belyakov
2008-05-05 15:39 ` Jörn Engel [this message]
2008-05-06 9:29 ` Alexander Belyakov
2008-05-08 15:30 ` Jörn Engel
2008-05-08 15:33 ` Artem Bityutskiy
2008-05-08 15:38 ` Jörn Engel
2008-05-06 0:15 ` Hamish Moffatt
2008-05-06 6:15 ` Jörn Engel
2008-05-06 9:42 ` Hamish Moffatt
2008-05-06 10:47 ` Jörn Engel
2008-05-14 17:34 ` Alexey Korolev
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