27 lines
949 B
C
27 lines
949 B
C
/*
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* Definition of the unix super block.
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* The root super block is allocated and
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* read in iinit/alloc.c. Subsequently
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* a super block is allocated and read
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* with each mount (smount/sys3.c) and
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* released with unmount (sumount/sys3.c).
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* A disk block is ripped off for storage.
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* See alloc.c for general alloc/free
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* routines for free list and I list.
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*/
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struct filsys
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{
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int s_isize; /* size in blocks of I list */
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int s_fsize; /* size in blocks of entire volume */
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int s_nfree; /* number of in core free blocks (0-100) */
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int s_free[100]; /* in core free blocks */
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int s_ninode; /* number of in core I nodes (0-100) */
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int s_inode[100]; /* in core free I nodes */
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char s_flock; /* lock during free list manipulation */
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char s_ilock; /* lock during I list manipulation */
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char s_fmod; /* super block modified flag */
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char s_ronly; /* mounted read-only flag */
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int s_time[2]; /* current date of last update */
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int pad[50];
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};
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