* Definition of the unix super block.
* The root super block is allocated and
* read in iinit/alloc.c. Subsequently
* a super block is allocated and read
* with each mount (smount/sys3.c) and
* released with unmount (sumount/sys3.c).
* A disk block is ripped off for storage.
* See alloc.c for general alloc/free
* routines for free list and I list.
int s_isize
; /* size in blocks of I list */
int s_fsize
; /* size in blocks of entire volume */
int s_nfree
; /* number of in core free blocks (0-100) */
int s_free
[100]; /* in core free blocks */
int s_ninode
; /* number of in core I nodes (0-100) */
int s_inode
[100]; /* in core free I nodes */
char s_flock
; /* lock during free list manipulation */
char s_ilock
; /* lock during I list manipulation */
char s_fmod
; /* super block modified flag */
char s_ronly
; /* mounted read-only flag */
int s_time
[2]; /* current date of last update */