Re: Here is the tcp-zero-copy patch for kernel 2.6.12-6 .

[Jeff Garzik <jeff@garzik.org>]

yzy wrote:
> Hello linux-kernel:
>
> I do some work on tcp-zero-copy for kernel 2.6.12-6 ( vanilla ) , Here 
> is the patch . Please review and discussion it .
>
> The patch modify mainly these files below :
> (1) include/linux/skbuff.h : add a zccd_t struct , it include the 
> zero-copy's callback function pointer and reference count.
> (2)include/net/tcp.h : add a new function  tcp_sendpage_zccd( ) . It  
> was used as send a memory page to TCP/IP stack.
> (3)net/core/dev.c (4)net/core/skbuff.c : process the initial ,refcount 
> and release of zccd information.
> (5)net/ipv4/tcp.c : call the tcp_sendpage_zccd() function to send a 
> memory page.

1) Why, we already have zero-copy?

2) Please send to netdev@vger.kernel.org, which is where the people who 
maintain this code live.

	Jeff



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