Man page 9 : splice_from_pipe_end

splice_from_pipe_end - finish splicing from pipe

void splice_from_pipe_end(struct pipe_inode_info *  pipe , struct splice_desc *  sd );

pipe
    pipe to splice from

sd
    information about the splice operation

This function will wake up pipe writers if necessary. It should be called after a loop containing splice_from_pipe_next and splice_from_pipe_feed.