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MFC r198472

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Eliminate an unnecessary check from vm_fault_prefault().
This commit is contained in:
Alan Cox 2009-10-31 18:18:32 +00:00
parent 5a1c285266
commit 38c15033c7
1 changed files with 2 additions and 2 deletions
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4
sys/vm/vm_fault.c
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@ -1011,8 +1011,8 @@ vm_fault_prefault(pmap_t pmap, vm_offset_t addra, vm_map_entry_t entry)
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);