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Date: Tue, 4 Dec 2007 23:45:25 +0100 From: Jörn Engel <joern@...fs.org> To: Jared Hulbert <jaredeh@...il.com> Cc: Alan Cox <alan@...rguk.ukuu.org.uk>, Chris Friesen <cfriesen@...tel.com>, linux-kernel@...r.kernel.org Subject: Re: solid state drive access and context switching On Tue, 4 December 2007 13:54:21 -0800, Jared Hulbert wrote: > > Maybe I'm missing something but I don't see it. We want a block > interface for these devices, we just need a faster slimmer interface. > Maybe a new mtdblock interface that doesn't do erase would be the > place for? Doesn't do erase? MTD has to learn almost all tricks from the block layer, as devices are becoming high-latency high-bandwidth, compared to what MTD was designed for. In order to get any decent performance, we need asynchronous operations, request queues and caching. The only useful advantage MTD does have over block devices is an _explicit_ erase operation. Did you mean "doesn't do _implicit_ erase". Jörn -- It's just what we asked for, but not what we want! -- anonymous -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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