/* * Definitions for the mapping of vitual swap * space to the physical swap area - the disk map. */ #define NDMAP 64 /* size of the swap area map */ struct dmap { swblk_t dm_size; /* current size used by process */ swblk_t dm_alloc; /* amount of physical swap space allocated */ swblk_t dm_map[NDMAP]; /* first disk block number in each chunk */ }; #ifdef KERNEL extern struct dmap zdmap; extern int dmmin; /* size in clicks of dm_map[0] */ extern int dmmax; /* max size of swap alloc, in clicks */ #endif /* * The following structure is that ``returned'' * from a call to vstodb(). */ struct dblock { swblk_t db_base; /* base of physical contig drum block */ swblk_t db_size; /* size of block */ };