Author: alc
Date: Sat Oct 31 18:18:32 2009
New Revision: 198726
URL: http://svn.freebsd.org/changeset/base/198726
Log:
MFC r198472
Eliminate an unnecessary check from vm_fault_prefault().
Modified:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
stable/8/sys/vm/vm_fault.c
Modified: stable/8/sys/vm/vm_fault.c
==============================================================================
--- stable/8/sys/vm/vm_fault.c Sat Oct 31 18:04:34 2009 (r198725)
+++ stable/8/sys/vm/vm_fault.c Sat Oct 31 18:18:32 2009 (r198726)
@@ -1011,8 +1011,8 @@ vm_fault_prefault(pmap_t pmap, vm_offset
while ((m = vm_page_lookup(lobject, pindex)) == NULL &&
lobject->type == OBJT_DEFAULT &&
(backing_object = lobject->backing_object) != NULL) {
- if (lobject->backing_object_offset & PAGE_MASK)
- break;
+ KASSERT((lobject->backing_object_offset & PAGE_MASK) ==
+ 0, ("vm_fault_prefault: unaligned object offset"));
pindex += lobject->backing_object_offset >> PAGE_SHIFT;
VM_OBJECT_LOCK(backing_object);
VM_OBJECT_UNLOCK(lobject);
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