generic_pipe_buf_steal (9) - Linux Manuals
generic_pipe_buf_steal: attempt to take ownership of a pipe_buffer
generic_pipe_buf_steal - attempt to take ownership of a pipe_buffer
int generic_pipe_buf_steal(struct pipe_inode_info
*pipe, struct pipe_buffer *buf);
- the pipe that the buffer belongs to
- the buffer to attempt to steal
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.