Hi Dave, What is wrong in udp_sendpages which is including header and trailers as a part of the arguments? I don't quite understand the problem in the interface other than it is including header and trailers as a part of sendfile call just like BSD-style sendfilev call. Using CORKing for UDP is nothing but buffering UDP packets which is not conventional for UDP sockets. A write on UDP sockets do need to result in transmitting the packets to the network. The patch is a initial attempt to provide a UDP-based zero-copy path and also solving IP frags checksum issues in sending non-linear UDP skbs. Ravi Chamarti -----Original Message----- From: David S. Miller [mailto:davem@redhat.com] Sent: Friday, September 06, 2002 11:58 AM To: Kishore Chitrapu Cc: linux-net@vger.kernel.org; Larry Sendlosky; Ravi Chamarti; taka@valinux.co.jp Subject: Re: udp sendfile & csum_partial work around Wrong interface, you need to do something like TCP_CORK for udp, then the user does a write() of the headers then a sendfile() then an uncork. When the uncork happens you push the accumulated SKB to be transmitted. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
