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
@@ -1115,17 +1115,14 @@
 vm_object_page_collect_flush(vm_object_t object, vm_page_t p, int pagerflags,
     int flags, boolean_t *allclean, boolean_t *eio)
 {
-	vm_page_t ma[vm_pageout_page_count], p_first, tp;
-	int count, i, mreq, runlen;
+	vm_page_t ma[2 * vm_pageout_page_count], tp;
+	int count, mreq, runlen;
 
 	vm_page_lock_assert(p, MA_NOTOWNED);
 	vm_page_assert_xbusied(p);
 	VM_OBJECT_ASSERT_WLOCKED(object);
-
-	count = 1;
-	mreq = 0;
-
-	for (tp = p; count < vm_pageout_page_count; count++) {
+	ma[vm_pageout_page_count] = p;
+	for (count = 1, tp = p; count < vm_pageout_page_count; count++) {
 		tp = vm_page_next(tp);
 		if (tp == NULL || vm_page_tryxbusy(tp) == 0)
 			break;
@@ -1133,24 +1130,22 @@
 			vm_page_xunbusy(tp);
 			break;
 		}
+		ma[vm_pageout_page_count + count] = tp;
 	}
 
-	for (p_first = p; count < vm_pageout_page_count; count++) {
-		tp = vm_page_prev(p_first);
+	for (mreq = 0, tp = p; count < vm_pageout_page_count; count++, mreq++) {
+		tp = vm_page_prev(tp);
 		if (tp == NULL || vm_page_tryxbusy(tp) == 0)
 			break;
 		if (!vm_object_page_remove_write(tp, flags, allclean)) {
 			vm_page_xunbusy(tp);
 			break;
 		}
-		p_first = tp;
-		mreq++;
+		ma[vm_pageout_page_count - 1 - mreq] = tp;
 	}
 
-	for (tp = p_first, i = 0; i < count; tp = TAILQ_NEXT(tp, listq), i++)
-		ma[i] = tp;
-
-	vm_pageout_flush(ma, count, pagerflags, mreq, &runlen, eio);
+	vm_pageout_flush(&ma[vm_pageout_page_count - mreq], count, pagerflags,
+	    mreq, &runlen, eio);
 	return (runlen);
 }