diff --git a/sys/sys/unistd.h b/sys/sys/unistd.h
--- a/sys/sys/unistd.h
+++ b/sys/sys/unistd.h
@@ -216,6 +216,15 @@
 #define	CLOSE_RANGE_CLOEXEC	(1<<2)
 #define	CLOSE_RANGE_CLOFORK	(1<<3)
 
+/*
+ * copy_file_range flags visible to user space.
+ * High order 8 bits reserved for kernel flags.
+ * Allocate from bit 23 down, to try and avoid conflicts with
+ * future Linux flags.
+ */
+#define	COPY_FILE_RANGE_CLONE		0x00800000	/* Require cloning. */
+#define	COPY_FILE_RANGE_USERFLAGS	(COPY_FILE_RANGE_CLONE)
+
 #endif /* __BSD_VISIBLE */
 
 #endif /* !_SYS_UNISTD_H_ */
diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h
--- a/sys/sys/vnode.h
+++ b/sys/sys/vnode.h
@@ -397,21 +397,8 @@
  */
 #define VLKTIMEOUT	(hz / 20 + 1)
 
-/* copy_file_range flags */
-#define	COPY_FILE_RANGE_KFLAGS		0xff000000
-
-/*
- * copy_file_range flags visible to user space.
- * Allocate high bits first, to try and avoid conflicting with Linux.
- */
-#define	COPY_FILE_RANGE_CLONE		0x00800000	/* Require cloning. */
-#define	COPY_FILE_RANGE_USERFLAGS	(COPY_FILE_RANGE_CLONE)
-
 #ifdef _KERNEL
 
-/* copy_file_range flags only usable in the kernel */
-#define	COPY_FILE_RANGE_TIMEO1SEC	0x01000000	/* Return after 1sec. */
-
 #ifdef MALLOC_DECLARE
 MALLOC_DECLARE(M_VNODE);
 #endif
@@ -634,6 +621,10 @@
 #define	VN_OPEN_INVFS		0x00000008
 #define	VN_OPEN_WANTIOCTLCAPS	0x00000010
 
+/* copy_file_range kernel flags */
+#define	COPY_FILE_RANGE_KFLAGS		0xff000000
+#define	COPY_FILE_RANGE_TIMEO1SEC	0x01000000	/* Return after 1sec. */
+
 /*
  * Public vnode manipulation functions.
  */