MD_MAJOR
mdev = MKDEV(MD_MAJOR, args->minor);
ret = __register_blkdev(MD_MAJOR, "md", md_probe);
unregister_blkdev(MD_MAJOR, "md");
unregister_blkdev(MD_MAJOR,"md");
MODULE_ALIAS_BLOCKDEV_MAJOR(MD_MAJOR);
partitioned = (MAJOR(mddev->unit) != MD_MAJOR);
if (MAJOR(dev) == MD_MAJOR && MINOR(dev) >= 512)
return md_alloc_and_put(MKDEV(MD_MAJOR, devnum), NULL);
dev = MKDEV(MD_MAJOR, rdev0->preferred_minor);
dev = MKDEV(MD_MAJOR, next_minor);
if (unit && MAJOR(unit) != MD_MAJOR)
if (MAJOR(unit) == MD_MAJOR)
#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
#define CLEAR_ARRAY _IO (MD_MAJOR, 0x20)
#define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t)
#define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22)
#define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t)
#define SET_DISK_INFO _IO (MD_MAJOR, 0x24)
#define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25)
#define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26)
#define PROTECT_ARRAY _IO (MD_MAJOR, 0x27)
#define HOT_ADD_DISK _IO (MD_MAJOR, 0x28)
#define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29)
#define HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a)
#define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int)
#define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t)
#define STOP_ARRAY _IO (MD_MAJOR, 0x32)
#define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33)
#define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34)
#define CLUSTERED_DISK_NACK _IO (MD_MAJOR, 0x35)