mdu_disk_info_t 23 include/linux/raid/md_u.h #define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t) mdu_disk_info_t 30 include/linux/raid/md_u.h #define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) mdu_disk_info_t 127 init/do_mounts_md.c mdu_disk_info_t dinfo;