minix/servers/vm/phys_region.h

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#ifndef PHYS_REGION_H
#define PHYS_REGION_H 1
#include <stddef.h>
#include "memtype.h"
typedef struct phys_region {
struct phys_block *ph;
struct vir_region *parent; /* vir_region or NULL if yielded */
vir_bytes offset; /* offset from start of vir region */
#if SANITYCHECKS
int written; /* written to pagetable */
#endif
mem_type_t *memtype;
/* list of phys_regions that reference the same phys_block */
struct phys_region *next_ph_list;
/* AVL fields */
struct phys_region *less, *greater;
int factor;
} phys_region_t;
#endif