centos man page for skb_zerocopy

SKB_ZEROCOPY(9) 						 Linux Networking						   SKB_ZEROCOPY(9)

NAME
       skb_zerocopy - Zero copy skb to skb

SYNOPSIS
       void skb_zerocopy(struct sk_buff * to, const struct sk_buff * from, int len, int hlen);

ARGUMENTS
       to
	   destination buffer

       from
	   -- undescribed --

       len
	   number of bytes to copy from source buffer

       hlen
	   size of linear headroom in destination buffer

DESCRIPTION
       Copies up to `len` bytes from `from` to `to` by creating references to the frags in the source buffer.

       The `hlen` as calculated by skb_zerocopy_headlen specifies the headroom in the `to` buffer.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							   SKB_ZEROCOPY(9)