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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
