NAME
generic_pipe_buf_get - get a reference to a struct pipe_buffer
SYNOPSIS
bool 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.