fs/hpfs/hpfs.h

29 typedef u32 secno;			/* sector number, partition relative */
31 typedef secno dnode_secno;		/* sector number of a dnode */
32 typedef secno fnode_secno;		/* sector number of an fnode */
33 typedef secno anode_secno;		/* sector number of an anode */
37 /* sector 0 */
71 /* sector 16 */
96   __le32 dir_band_start;			/* first sector in dir band */
97   __le32 dir_band_end;			/* last sector in dir band */
105 /* sector 17 */
120   u8 bad_sector: 1;			/* bad sector, corrupted disk (???) */
130   u8 bad_sector: 1;			/* bad sector, corrupted disk (???) */
186    sectors.  The from[] list contains the sector numbers of bad blocks
214     __le32 code_page_data;		/* sector number of a code_page_data
216     __le16 index;			/* index in c.p. array in that sector*/
233   __le16 offs[3];			/* offsets from start of sector
247    16384 sectors is 8 meg, and each 8 meg band has a 4-sector bitmap.
264    It has a 4-sector free space bitmap of its own.  Each bit in the map
265    corresponds to one 4-sector dnode, bit 0 of the map corresponding to
375    has 3-word entries giving sector runs, a non-leaf node has 2-word
380   __le32 file_secno;			/* first file sector in extent */
382   __le32 disk_secno;			/* first corresponding disk sector */
414 	/* (external) 3-word entries giving sector runs */
450   __le32 ea_secno;			/* first sector of disk-resident ea's*/
512    sector run outside the fnode, or to multiple runs with an anode tree
516    it is moved to a single sector run, or multiple runs pointed to by an
519    Flags in the EA tell whether the value is immediate, in a single sector
526   u8 flags;				/* bit 0 set -> value gives sector number
528 					/* bit 1 set -> sector is an anode
541         secno secno;			sector address where it starts
542       if this.anode, the above sector number is the root of an anode tree