centos man page for generic_pipe_buf_get

GENERIC_PIPE_BUF_GET(9) 					     pipes API						   GENERIC_PIPE_BUF_GET(9)

NAME
       generic_pipe_buf_get - get a reference to a struct pipe_buffer

SYNOPSIS
       void generic_pipe_buf_get(struct pipe_inode_info * pipe, struct pipe_buffer * buf);

ARGUMENTS
       pipe
	   the pipe that the buffer belongs to

       buf
	   the buffer to get a reference to

DESCRIPTION
       This function grabs an extra reference to buf. It's used in in the tee system call, when we duplicate the buffers in one pipe into another.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   GENERIC_PIPE_BUF_GET(9)