diff --git a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ioctl_os.c b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ioctl_os.c
--- a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ioctl_os.c
+++ b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ioctl_os.c
@@ -59,7 +59,7 @@
 	return (error);
 }
 
-int
+boolean_t
 zfs_vfs_held(zfsvfs_t *zfsvfs)
 {
 	return (zfsvfs->z_vfs != NULL);
diff --git a/sys/sys/types.h b/sys/sys/types.h
--- a/sys/sys/types.h
+++ b/sys/sys/types.h
@@ -273,7 +273,7 @@
 typedef __register_t	syscallarg_t;
 
 #ifdef _KERNEL
-typedef	int		boolean_t;
+typedef	unsigned int	boolean_t;
 typedef	struct _device	*device_t;
 typedef	__intfptr_t	intfptr_t;
 
diff --git a/sys/vm/phys_pager.c b/sys/vm/phys_pager.c
--- a/sys/vm/phys_pager.c
+++ b/sys/vm/phys_pager.c
@@ -269,7 +269,7 @@
 }
 
 static void
-phys_pager_putpages(vm_object_t object, vm_page_t *m, int count, boolean_t sync,
+phys_pager_putpages(vm_object_t object, vm_page_t *m, int count, int flags,
     int *rtvals)
 {
 
diff --git a/sys/vm/sg_pager.c b/sys/vm/sg_pager.c
--- a/sys/vm/sg_pager.c
+++ b/sys/vm/sg_pager.c
@@ -56,7 +56,7 @@
 static void sg_pager_dealloc(vm_object_t);
 static int sg_pager_getpages(vm_object_t, vm_page_t *, int, int *, int *);
 static void sg_pager_putpages(vm_object_t, vm_page_t *, int, 
-		boolean_t, int *);
+		int, int *);
 static boolean_t sg_pager_haspage(vm_object_t, vm_pindex_t, int *,
 		int *);
 
@@ -211,7 +211,7 @@
 
 static void
 sg_pager_putpages(vm_object_t object, vm_page_t *m, int count,
-    boolean_t sync, int *rtvals)
+    int flags, int *rtvals)
 {
 
 	panic("sg_pager_putpage called");
diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -426,7 +426,7 @@
     int *);
 static int	swap_pager_getpages_async(vm_object_t, vm_page_t *, int, int *,
     int *, pgo_getpages_iodone_t, void *);
-static void	swap_pager_putpages(vm_object_t, vm_page_t *, int, boolean_t, int *);
+static void	swap_pager_putpages(vm_object_t, vm_page_t *, int, int, int *);
 static boolean_t
 		swap_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before, int *after);
 static void	swap_pager_init(void);
diff --git a/sys/vm/vm_pager.c b/sys/vm/vm_pager.c
--- a/sys/vm/vm_pager.c
+++ b/sys/vm/vm_pager.c
@@ -129,7 +129,7 @@
 		rtvals[i] = VM_PAGER_AGAIN;
 }
 
-static int
+static boolean_t
 dead_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *prev, int *next)
 {