minix/servers/vm/phys_region.h
Ben Gras 29edcad310 vm: replace phys avl by array
. make vm be able to use malloc() by overriding brk()
   and minix_mmap() functions
 . phys regions can then be malloc()ed and free()d instead
   of being in an avl tree, which is slightly faster
 . 'offset' field in phys_region can go too (offset is implied
   by position in array) but leads to bigger code changes
2012-12-26 16:14:41 +00:00

22 lines
481 B
C

#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;
} phys_region_t;
#endif