Lines Matching defs:mdp_superblock_1

224 struct mdp_superblock_1 {  struct
226 	__le32	magic;		/* MD_SB_MAGIC: 0xa92b4efc - little endian */
227 	__le32	major_version;	/* 1 */
228 	__le32	feature_map;	/* bit 0 set if 'bitmap_offset' is meaningful */
229 	__le32	pad0;		/* always set to 0 when writing */
231 	__u8	set_uuid[16];	/* user-space generated. */
232 	char	set_name[32];	/* set and interpreted by user-space */
234 	__le64	ctime;		/* lo 40 bits are seconds, top 24 are microseconds or 0*/
235 	__le32	level;		/* -4 (multipath), -1 (linear), 0,1,4,5 */
236 	__le32	layout;		/* only for raid5 and raid10 currently */
237 	__le64	size;		/* used size of component devices, in 512byte sectors */
239 	__le32	chunksize;	/* in 512byte sectors */
240 	__le32	raid_disks;
241 	__le32	bitmap_offset;	/* sectors after start of superblock that bitmap starts
247 	__le32	new_level;	/* new level we are reshaping to		*/
248 	__le64	reshape_position;	/* next address in array-space for reshape */
249 	__le32	delta_disks;	/* change in number of raid_disks		*/
250 	__le32	new_layout;	/* new layout					*/
251 	__le32	new_chunk;	/* new chunk size (512byte sectors)		*/
252 	__le32  new_offset;	/* signed number to add to data_offset in new
258 	__le64	data_offset;	/* sector start of data, often 0 */
259 	__le64	data_size;	/* sectors in this device that can be used for data */
260 	__le64	super_offset;	/* sector start of this superblock */
261 	union {
265 	__le32	dev_number;	/* permanent identifier of this  device - not role in raid */
266 	__le32	cnt_corrected_read; /* number of read errors that were corrected by re-writing */
267 	__u8	device_uuid[16]; /* user-space setable, ignored by kernel */
268 	__u8	devflags;	/* per-device flags.  Only one defined...*/
273 	__u8	bblog_shift;	/* shift from sectors to block size */
274 	__le16	bblog_size;	/* number of sectors reserved for list */
275 	__le32	bblog_offset;	/* sector offset from superblock to bblog,
279 	__le64	utime;		/* 40 bits second, 24 bits microseconds */
280 	__le64	events;		/* incremented when superblock updated */
281 	__le64	resync_offset;	/* data before this offset (from data_offset) known to be in sync */
282 	__le32	sb_csum;	/* checksum up to devs[max_dev] */
283 	__le32	max_dev;	/* size of devs[] array to consider */
284 	__u8	pad3[64-32];	/* set to 0 when writing */
292 	__le16	dev_roles[0];	/* role in array, or 0xffff for a spare, or 0xfffe for faulty */