HI all Could anyone please help me understand these ? : unsigned long hard_sector, hard_nr_sectors; unsigned int nr_segments; unsigned int nr_hw_segments I understand sector :first sector number in the queue nr_sectors: total sectors in the queue current_nr_sectors : total sectors in the current block How are these related is what I am trying to understand . Thanx Narasimhamurthy Giri, Clemson University Computer Science Dept. ------------------------------------------------------------------------------- Judge not lest ye be judged yourself. ------------------------------------------------------------------------------- -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/