generic_splice_sendpage — splice data from a pipe to a socket
ssize_t generic_splice_sendpage
(struct pipe_inode_info * pipe, struct file * out, loff_t * ppos, size_t len, unsigned int flags);
pipe to splice from
socket to write to
position in out
number of bytes to splice
splice modifier flags
Will send len bytes from the pipe to a network socket. No data copying is involved.