Author: alc
Date: Sun Oct 25 17:30:50 2009
New Revision: 198472
URL: http://svn.freebsd.org/changeset/base/198472
Log:
Eliminate an unnecessary check from vm_fault_prefault().
Modified:
head/sys/vm/vm_fault.c
Modified: head/sys/vm/vm_fault.c
==============================================================================
--- head/sys/vm/vm_fault.c Sun Oct 25 15:52:31 2009 (r198471)
+++ head/sys/vm/vm_fault.c Sun Oct 25 17:30:50 2009 (r198472)
@@ -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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