D49938.diff
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	diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
	--- a/sys/vm/vm_object.c
	+++ b/sys/vm/vm_object.c
	@@ -2133,13 +2133,16 @@
	boolean_t
	vm_object_populate(vm_object_t object, vm_pindex_t start, vm_pindex_t end)
	{
	+ struct pctrie_iter pages;
	vm_page_t m;
	vm_pindex_t pindex;
	int rv;

	+ vm_page_iter_init(&pages, object);
	VM_OBJECT_ASSERT_WLOCKED(object);
	for (pindex = start; pindex < end; pindex++) {
	- rv = vm_page_grab_valid(&m, object, pindex, VM_ALLOC_NORMAL);
	+ rv = vm_page_grab_valid_iter(&m, object, &pages, pindex,
	+ VM_ALLOC_NORMAL);
	if (rv != VM_PAGER_OK)
	break;

	@@ -2149,11 +2152,9 @@
	*/
	}
	if (pindex > start) {
	- m = vm_page_lookup(object, start);
	- while (m != NULL && m->pindex < pindex) {
	+ pages.limit = pindex;
	+ VM_RADIX_FORALL_FROM(m, &pages, start)
	vm_page_xunbusy(m);
	- m = TAILQ_NEXT(m, listq);
	- }
	}
	return (pindex == end);
	}