On Thu, Jul 27 2006, David Miller wrote: > From: Jens Axboe <[EMAIL PROTECTED]> > Date: Thu, 27 Jul 2006 10:11:15 +0200 > > > Ownership transition from user -> kernel that is, what I'm trying to say > > that returning ownership to the user again is the tricky part. > > Yes, it is important that for TCP, for example, we don't give > the user the event until the data is acknowledged and the skb's > referencing that data are fully freed. > > This is further complicated by the fact that packetization boundaries > are going to be different from AIO buffer boundaries. > > I think this is what you are alluding to.
Precisely. And this is the bit that is currently still broken for splice-to-socket, since it gives that ack right after ->sendpage() has been called. But that's a known deficiency right now, I think Alexey is currently looking at that (as well as receive side support). -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
