Re: zero copy with PACKET_MMAP
From: Daniel Borkmann <hidden>
Date: 2014-02-27 09:58:34
On 02/27/2014 07:40 AM, ratheesh kannoth wrote: ...
https://www.kernel.org/doc/Documentation/networking/packet_mmap.txt talks about achieving zero copy. But i find a deep packet copy ( of length snaplen= skb->len ) here http://lxr.free-electrons.com/source/net/packet/af_packet.c#L1841. Is there anything missing/wrong in my understanding ?
The zero-copy is between user and kernel space.