osfmk/kern/zalloc.c

173 		((vm_offset_t *) elem)[((zone->elem_size)/sizeof(vm_offset_t))-1] = zone->free_elements;
179 	((vm_offset_t *) elem)[0] = zone->free_elements;
180 	zone->free_elements = (vm_offset_t) elem;
191 	void *elem = (void *) zone->free_elements;
224 		zone->free_elements = ((vm_offset_t *) elem)[0];
1105 	if (size < sizeof(z->free_elements))
1106 		size = sizeof(z->free_elements);
1107 	size = ((size-1)  + sizeof(z->free_elements)) -
1108 		((size-1) % sizeof(z->free_elements));
1154 	z->free_elements = 0;
2214 		for (this = zone->free_elements;
2557 	(tail)->next = (void *)((zone)->free_elements);			\
2560 			(zone)->free_elements;				\
2562 	(zone)->free_elements = (unsigned long)(base);			\
2665 		scan = (void *)z->free_elements;
2666 		z->free_elements = 0;
3485 #define zone_in_use(z) 	( z->count || z->free_elements )