suse man page for generic_pipe_buf_unmap

GENERIC_PIPE_BUF_UNM(9) 					     pipes API						   GENERIC_PIPE_BUF_UNM(9)

NAME
       generic_pipe_buf_unmap - unmap a previously mapped pipe buffer

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

ARGUMENTS
       pipe
	   the pipe that the buffer belongs to

       buf
	   the buffer that should be unmapped

       map_data
	   the data that the mapping function returned

DESCRIPTION
       This function undoes the mapping that ->map provided.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   GENERIC_PIPE_BUF_UNM(9)