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Annotation of researchv10dc/lsys/sys/dmap.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Definitions for the mapping of vitual swap
        !             3:  * space to the physical swap area - the disk map.
        !             4:  */
        !             5: 
        !             6: #define        NDMAP           64      /* size of the swap area map */
        !             7: 
        !             8: struct dmap
        !             9: {
        !            10:        swblk_t dm_size;        /* current size used by process */
        !            11:        swblk_t dm_alloc;       /* amount of physical swap space allocated */
        !            12:        swblk_t dm_map[NDMAP];  /* first disk block number in each chunk */
        !            13: };
        !            14: #ifdef KERNEL
        !            15: extern struct  dmap zdmap;
        !            16: extern int dmmin;              /* size in clicks of dm_map[0] */
        !            17: extern int dmmax;              /* max size of swap alloc, in clicks */
        !            18: #endif
        !            19: 
        !            20: /*
        !            21:  * The following structure is that ``returned''
        !            22:  * from a call to vstodb().
        !            23:  */
        !            24: struct dblock
        !            25: {
        !            26:        swblk_t db_base;        /* base of physical contig drum block */
        !            27:        swblk_t db_size;        /* size of block */
        !            28: };

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