suse man page for generic_pipe_buf_steal

GENERIC_PIPE_BUF_STE(9) 					     pipes API						   GENERIC_PIPE_BUF_STE(9)

NAME
       generic_pipe_buf_steal - attempt to take ownership of a pipe_buffer

SYNOPSIS
       int generic_pipe_buf_steal(struct pipe_inode_info * pipe, struct pipe_buffer * buf);

ARGUMENTS
       pipe
	   the pipe that the buffer belongs to

       buf
	   the buffer to attempt to steal

DESCRIPTION
       This function attempts to steal the struct page attached to buf. If successful, this function returns 0 and returns with the page locked.
       The caller may then reuse the page for whatever he wishes; the typical use is insertion into a different file page cache.

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