generic_pipe_buf_get (9) Linux Manual Page
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.