ctf_integer(int, io_done, mpd->io_done)
ctf_integer(int, pages_written, mpd->pages_written)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
ctf_integer(int, io_done, mpd->io_done)
ctf_integer(int, pages_written, mpd->pages_written)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))