centos man page for skb_has_shared_frag

SKB_HAS_SHARED_FRAG(9)						 Linux Networking					    SKB_HAS_SHARED_FRAG(9)

NAME
       skb_has_shared_frag - can any frag be overwritten

SYNOPSIS
       bool skb_has_shared_frag(const struct sk_buff * skb);

ARGUMENTS
       skb
	   buffer to test

DESCRIPTION
       Return true if the skb has at least one frag that might be modified by an external entity (as in vmsplice/sendfile)

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						    SKB_HAS_SHARED_FRAG(9)