Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove vm_object_prefer. VM code now calls PMAP_PREFER directly.

Browse Source
This commit is contained in:
gwr 1996-02-28 22:35:35 +00:00
parent 8bea3309c3
commit fdb309615e
1 changed files with 1 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
sys/vm/vm_object.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vm_object.c,v 1.33 1996/02/10 00:08:11 christos Exp $ */
/* $NetBSD: vm_object.c,v 1.34 1996/02/28 22:35:35 gwr Exp $ */
/*
* Copyright (c) 1991, 1993
@ -1402,56 +1402,6 @@ vm_object_coalesce(prev_object, next_object,
return(TRUE);
}
/*
* 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 ]
*/