Re: [RFC] MTD driver for MMC cards
- From: Jörn Engel <joern@xxxxxxxxxxxxxxx>
- Date: Mon, 16 Apr 2007 02:31:48 +0200
On Mon, 16 April 2007 01:33:17 +0200, Arnd Bergmann wrote:
There is also still some need for performance testing. Jörn
brought up the point that if a specific card can't have multiple
open erase block simulateously, it's rather pointless for
logfs. It might still be useful to use jffs2 on those cards,
because IFAIK that only writes to one erase block at any
time.
This appears to be a problem for practically all consumer-available
flash media. They spend a lot of effort trying to hide any flash
properties from their users. And while this is a decent strategy for
FAT, ext3, ntfs and similar, it is actually very inefficient for a flash
filesystem.
After talking to several manufacturers, most seemed to be fairly
open-minded towards supporting an alternate interface with raw flash
access. So much for the good news. Bad news is that such an elternate
interface still needs to be defined.
Jörn
--
Courage is not the absence of fear, but rather the judgement that
something else is more important than fear.
-- Ambrose Redmoon
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- Re: [RFC] MTD driver for MMC cards
- From: Arnd Bergmann
- Re: [RFC] MTD driver for MMC cards
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