On Tue, Jun 12, 2012 at 08:07:28PM +0000, Arnd Bergmann wrote:
> Right. The danger here is that the context support was described in
> the standard first, while none of the devices seem to even be
> smart enough to make use of the information we put in there. Once
> operating systems start putting some data in there, at least
> some manufacturers will start making use of that data to optimize
> the accesses, but it's very unlikely that they will tell us exactly
> what they are doing. Having code in ext4 that uses the contexts will
> at least make it more likely that the firmware optimizations are
> based on ext4 measurements rather than some other file system or
> operating system.
>
> From talking with the emmc device vendors, I can tell you that ext4
> is very high on the list of file systems to optimize for, because
> they all target Android products.
Well, I have a contact at SanDisk where I can discuss things under
NDA, if that will help. He had reached out to me specifically because
of ext4 and Android --- he's the guy that I invited to give a talk at
the LSF workshop last year.
- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
