diff options
Diffstat (limited to 'sys/vm/vm_object.c')
| -rw-r--r-- | sys/vm/vm_object.c | 54 |
1 files changed, 2 insertions, 52 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index 6fd2c08da60..70c666027c2 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -1,5 +1,5 @@ -/* $OpenBSD: vm_object.c,v 1.3 1996/03/03 17:45:34 niklas Exp $ */ -/* $NetBSD: vm_object.c,v 1.33 1996/02/10 00:08:11 christos Exp $ */ +/* $OpenBSD: vm_object.c,v 1.4 1996/04/19 16:10:51 niklas Exp $ */ +/* $NetBSD: vm_object.c,v 1.34 1996/02/28 22:35:35 gwr Exp $ */ /* * Copyright (c) 1991, 1993 @@ -1404,56 +1404,6 @@ vm_object_coalesce(prev_object, next_object, } /* - * vm_object_prefer: - * - * Return optimal virtual address for new mapping of this object. - * - * The object must *not* be locked. - */ -void -vm_object_prefer(object, offset, addr) - register vm_object_t object; - register vm_offset_t offset; - register vm_offset_t *addr; -{ - register vm_page_t p; - register vm_offset_t paddr; - -#ifdef PMAP_PREFER - if (object == NULL) - goto first_map; - - /* - * Look for the first page that the pmap layer has something - * to say about. Since an object maps a contiguous range of - * virutal addresses, this will determine the preferred origin - * of the proposed mapping. - */ - vm_object_lock(object); - for (p = object->memq.tqh_first; p != NULL; p = p->listq.tqe_next) { - if (p->flags & (PG_FAKE | PG_FICTITIOUS)) - continue; - paddr = PMAP_PREFER(VM_PAGE_TO_PHYS(p), *addr+p->offset-offset); - if (paddr == (vm_offset_t)-1) - continue; - *addr = paddr - (p->offset - offset); - vm_object_unlock(object); - return; - } - vm_object_unlock(object); - -first_map: - /* - * No physical page attached; ask for a preferred address based - * only on the given virtual address. - */ - paddr = PMAP_PREFER((vm_offset_t)-1, *addr); - if (paddr != (vm_offset_t)-1) - *addr = paddr; - -#endif -} -/* * vm_object_print: [ debug ] */ void |