Annotation of researchv10dc/lsys/sys/dmap.h, revision 1.1.1.1

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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