Index: sys/amd64/amd64/pmap.c
===================================================================
--- sys/amd64/amd64/pmap.c
+++ sys/amd64/amd64/pmap.c
@@ -2219,14 +2219,9 @@
 static __inline void
 pmap_free_zero_pages(struct spglist *free)
 {
-	vm_page_t m;
 	int count;
 
-	for (count = 0; (m = SLIST_FIRST(free)) != NULL; count++) {
-		SLIST_REMOVE_HEAD(free, plinks.s.ss);
-		/* Preserve the page's PG_ZERO setting. */
-		vm_page_free_toq(m);
-	}
+	count = vm_page_free_spglist(free);
 	atomic_subtract_int(&vm_cnt.v_wire_count, count);
 }
 
Index: sys/arm/arm/pmap-v6.c
===================================================================
--- sys/arm/arm/pmap-v6.c
+++ sys/arm/arm/pmap-v6.c
@@ -2547,13 +2547,7 @@
 static __inline void
 pmap_free_zero_pages(struct spglist *free)
 {
-	vm_page_t m;
-
-	while ((m = SLIST_FIRST(free)) != NULL) {
-		SLIST_REMOVE_HEAD(free, plinks.s.ss);
-		/* Preserve the page's PG_ZERO setting. */
-		vm_page_free_toq(m);
-	}
+	vm_page_free_spglist(free);
 }
 
 /*
Index: sys/arm64/arm64/pmap.c
===================================================================
--- sys/arm64/arm64/pmap.c
+++ sys/arm64/arm64/pmap.c
@@ -1263,13 +1263,7 @@
 static __inline void
 pmap_free_zero_pages(struct spglist *free)
 {
-	vm_page_t m;
-
-	while ((m = SLIST_FIRST(free)) != NULL) {
-		SLIST_REMOVE_HEAD(free, plinks.s.ss);
-		/* Preserve the page's PG_ZERO setting. */
-		vm_page_free_toq(m);
-	}
+	vm_page_free_spglist(free);
 }
 
 /*
Index: sys/i386/i386/pmap.c
===================================================================
--- sys/i386/i386/pmap.c
+++ sys/i386/i386/pmap.c
@@ -1703,14 +1703,9 @@
 static __inline void
 pmap_free_zero_pages(struct spglist *free)
 {
-	vm_page_t m;
 	int count;
 
-	for (count = 0; (m = SLIST_FIRST(free)) != NULL; count++) {
-		SLIST_REMOVE_HEAD(free, plinks.s.ss);
-		/* Preserve the page's PG_ZERO setting. */
-		vm_page_free_toq(m);
-	}
+	count = vm_page_free_spglist(free);
 	atomic_subtract_int(&vm_cnt.v_wire_count, count);
 }
 
Index: sys/riscv/riscv/pmap.c
===================================================================
--- sys/riscv/riscv/pmap.c
+++ sys/riscv/riscv/pmap.c
@@ -1072,13 +1072,7 @@
 static __inline void
 pmap_free_zero_pages(struct spglist *free)
 {
-	vm_page_t m;
-
-	while ((m = SLIST_FIRST(free)) != NULL) {
-		SLIST_REMOVE_HEAD(free, plinks.s.ss);
-		/* Preserve the page's PG_ZERO setting. */
-		vm_page_free_toq(m);
-	}
+	vm_page_free_spglist(free);
 }
 
 /*
Index: sys/vm/vm_page.h
===================================================================
--- sys/vm/vm_page.h
+++ sys/vm/vm_page.h
@@ -547,6 +547,7 @@
 vm_page_bits_t vm_page_bits(int base, int size);
 void vm_page_zero_invalid(vm_page_t m, boolean_t setvalid);
 void vm_page_free_toq(vm_page_t m);
+int vm_page_free_spglist(struct spglist* free);
 
 void vm_page_dirty_KBI(vm_page_t m);
 void vm_page_lock_KBI(vm_page_t m, const char *file, int line);
Index: sys/vm/vm_page.c
===================================================================
--- sys/vm/vm_page.c
+++ sys/vm/vm_page.c
@@ -3055,6 +3055,40 @@
 }
 
 /*
+ *	vm_page_free_spglist:
+ *
+ *	Returns a list of pages to the free list, disassociating it
+ *	from any VM object.  In another word, this is equivalent to
+ *	calling vm_page_free_toq() for each page of a list of VM objects.
+ *
+ *	The objects must be locked.  The pages must be locked if it is
+ *	managed.
+ *
+ *	Return value indicates the number of VM page objects freed.
+ */
+int
+vm_page_free_spglist(struct spglist* free)
+{
+	vm_page_t m;
+	int count;
+	struct pglist pgl;
+
+	TAILQ_INIT(&pgl);
+	count = 0;
+	if ((m = SLIST_FIRST(free)) != NULL) {
+		do {
+			count++;
+			SLIST_REMOVE_HEAD(free, plinks.s.ss);
+			if (vm_page_free_prep(m, false))
+				TAILQ_INSERT_TAIL(&pgl, m, listq);
+		} while ((m = SLIST_FIRST(free)) != NULL);
+		if (!TAILQ_EMPTY(&pgl))
+			vm_page_free_phys_pglist(&pgl);
+	}
+	return count;
+}
+
+/*
  *	vm_page_wire:
  *
  *	Mark this page as wired down by yet