Index: sys/vm/vm_page.h
===================================================================
--- sys/vm/vm_page.h
+++ sys/vm/vm_page.h
@@ -290,7 +290,8 @@
 
 #define	VPB_UNBUSIED		VPB_SHARERS_WORD(0)
 
-#define	PQ_NONE		255
+/* 0x2 bit is used to indicate PQ is in laundry, PQ_LAUNDRY or PQ_UNSWAPPABLE */
+#define	PQ_NONE		(255 - 0x2)
 #define	PQ_INACTIVE	0
 #define	PQ_ACTIVE	1
 #define	PQ_LAUNDRY	2
@@ -888,10 +889,8 @@
 static inline bool
 vm_page_in_laundry(vm_page_t m)
 {
-	uint8_t queue;
 
-	queue = vm_page_queue(m);
-	return (queue == PQ_LAUNDRY || queue == PQ_UNSWAPPABLE);
+	return (vm_page_queue(m) & PQ_LAUNDRY); /* LAUNDRY or UNSWAPPABLE */
 }
 
 /*