tag	line	file	source code
sock_rspace	294	net/tcp/packet.c	sock_rspace,
sock_rspace	346	net/tcp/raw.c	sock_rspace,
sock_rspace	174	net/tcp/sock.h	unsigned long sock_rspace(volatile struct sock *sk);
sock_rspace	2499	net/tcp/tcp.c	sock_rspace,
sock_rspace	613	net/tcp/udp.c	sock_rspace,