Messages in this thread |  | | Date | Mon, 30 Oct 2000 13:56:07 -0500 | From | Jeff Garzik <> | Subject | Re: [PATCH] kiobuf/rawio fixes for 2.4.0-test10-pre6 |
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Christoph Hellwig wrote: > On Mon, Oct 30, 2000 at 12:19:21PM -0500, Jeff Garzik wrote: > > Take a look at drivers/sound/via82cxxx_audio.c. How can that mmap be > > improved by using kiobufs? > > I think so - but you need Stephen's kvmap patch, that is in the same > patchset the forward-ported fixes are > (at ftp://ftp.linux.org.uk/pub/linux/sct/fs/raw-io/) > > An very nice example is included.
Seen it, re-read my question...
I keep seeing "audio drivers' mmap" used a specific example of a place that would benefit from kiobufs. The current via audio mmap looks quite a bit like mmap_kiobuf and its support code... except without all the kiobuf overhead.
My question from above is: how can the via audio mmap in test10-preXX be improved by using kiobufs? I am not a kiobuf expert, but AFAICS a non-kiobuf implementation is better for audio drivers. (and the via audio mmap implementation is what some other audio drivers are about to start using...)
I can clearly see that many applications will find kiobufs quite useful (learned another from alan just now...), but I do not see that audio drivers can benefit from kiobufs at all. Corrections on this fact are requested, as I am hacking audio drivers right now and want to make sure I pick the best course of action for the long term.
Regards,
Jeff
-- Jeff Garzik | "Mind if I drive?" -Sam Building 1024 | "Not if you don't mind me clawing at the MandrakeSoft | dash and shrieking like a cheerleader." | -Max - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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