57 files changed, 114 insertions, 0 deletions

diff --git a/sys/kern/kern_clock.c b/sys/kern/kern_clock.c
index e88fcd14c2b46..396f98fbd413c 100644
--- a/sys/kern/kern_clock.c
+++ b/sys/kern/kern_clock.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_cons.c b/sys/kern/kern_cons.c
index 3f8d570316b00..ab8660e99d3a7 100644
--- a/sys/kern/kern_cons.c
+++ b/sys/kern/kern_cons.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1991 The Regents of the University of California.
  * Copyright (c) 1999 Michael Smith
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
index 45f56f34e2fd4..67253fa4050ed 100644
--- a/sys/kern/kern_descrip.c
+++ b/sys/kern/kern_descrip.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c
index e59c9a43b6c5a..12a7b5d5a6d5f 100644
--- a/sys/kern/kern_exit.c
+++ b/sys/kern/kern_exit.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index 0c78046c24a88..0367cdd7f1873 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_ktrace.c b/sys/kern/kern_ktrace.c
index 2b1b9944ad083..cae73c156dff7 100644
--- a/sys/kern/kern_ktrace.c
+++ b/sys/kern/kern_ktrace.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.
  * Copyright (c) 2005 Robert N. M. Watson
diff --git a/sys/kern/kern_lockf.c b/sys/kern/kern_lockf.c
index 654e927ba932e..ffd5632be3f75 100644
--- a/sys/kern/kern_lockf.c
+++ b/sys/kern/kern_lockf.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
  * Authors: Doug Rabson <dfr@rabson.org>
  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
diff --git a/sys/kern/kern_malloc.c b/sys/kern/kern_malloc.c
index 6d06992d827d4..9ef7e34c9a2c8 100644
--- a/sys/kern/kern_malloc.c
+++ b/sys/kern/kern_malloc.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1987, 1991, 1993
  *	The Regents of the University of California.
  * Copyright (c) 2005-2009 Robert N. M. Watson
diff --git a/sys/kern/kern_mib.c b/sys/kern/kern_mib.c
index 292b206faafdc..451c7122f3005 100644
--- a/sys/kern/kern_mib.c
+++ b/sys/kern/kern_mib.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
index b072ac66557ce..0c0ccfda9f58d 100644
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/kern_prot.c b/sys/kern/kern_prot.c
index fe080b7682be4..754880bfcefd2 100644
--- a/sys/kern/kern_prot.c
+++ b/sys/kern/kern_prot.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1990, 1991, 1993
  *	The Regents of the University of California.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_resource.c b/sys/kern/kern_resource.c
index 835c39295e1e0..97ffc08bcecd6 100644
--- a/sys/kern/kern_resource.c
+++ b/sys/kern/kern_resource.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_rmlock.c b/sys/kern/kern_rmlock.c
index 8f3b0c84dcfd1..123b24845f8e0 100644
--- a/sys/kern/kern_rmlock.c
+++ b/sys/kern/kern_rmlock.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2007 Stephan Uphoff <ups@FreeBSD.org>
  * All rights reserved.
  *
diff --git a/sys/kern/kern_shutdown.c b/sys/kern/kern_shutdown.c
index a5def7f2f7e7b..93d89ec84c084 100644
--- a/sys/kern/kern_shutdown.c
+++ b/sys/kern/kern_shutdown.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1986, 1988, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index ebbb404b8f828..1a93544bdb7d5 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c
index 52c3b891df78e..94ca923809464 100644
--- a/sys/kern/kern_synch.c
+++ b/sys/kern/kern_synch.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1990, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_sysctl.c b/sys/kern/kern_sysctl.c
index ade226c5379ea..e4b31eb5d713c 100644
--- a/sys/kern/kern_sysctl.c
+++ b/sys/kern/kern_sysctl.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/kern_time.c b/sys/kern/kern_time.c
index 1fe53e2819b24..8270723b6a6ec 100644
--- a/sys/kern/kern_time.c
+++ b/sys/kern/kern_time.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/kern_timeout.c b/sys/kern/kern_timeout.c
index 9c46011f55dc5..d245b0d405973 100644
--- a/sys/kern/kern_timeout.c
+++ b/sys/kern/kern_timeout.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/kern_xxx.c b/sys/kern/kern_xxx.c
index b37e4b07692df..db66d3ffc540b 100644
--- a/sys/kern/kern_xxx.c
+++ b/sys/kern/kern_xxx.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/sched_4bsd.c b/sys/kern/sched_4bsd.c
index c4d54d6f3402f..f6b124d865cb5 100644
--- a/sys/kern/sched_4bsd.c
+++ b/sys/kern/sched_4bsd.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1990, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/subr_autoconf.c b/sys/kern/subr_autoconf.c
index 64fe21a2bd75d..278393a4cb7f5 100644
--- a/sys/kern/subr_autoconf.c
+++ b/sys/kern/subr_autoconf.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/subr_blist.c b/sys/kern/subr_blist.c
index 0c79448a84009..d77d12997a57d 100644
--- a/sys/kern/subr_blist.c
+++ b/sys/kern/subr_blist.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1998 Matthew Dillon.  All Rights Reserved.
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
diff --git a/sys/kern/subr_clock.c b/sys/kern/subr_clock.c
index 50d8e1059205f..7c0f83e1a52b8 100644
--- a/sys/kern/subr_clock.c
+++ b/sys/kern/subr_clock.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1982, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/kern/subr_hash.c b/sys/kern/subr_hash.c
index c91374dea667d..25a8d768b735d 100644
--- a/sys/kern/subr_hash.c
+++ b/sys/kern/subr_hash.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/subr_log.c b/sys/kern/subr_log.c
index f77ded7a4a9fe..c542d34182766 100644
--- a/sys/kern/subr_log.c
+++ b/sys/kern/subr_log.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/subr_mchain.c b/sys/kern/subr_mchain.c
index 1c7a2beb01b4a..57461abda8076 100644
--- a/sys/kern/subr_mchain.c
+++ b/sys/kern/subr_mchain.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2000, 2001 Boris Popov
  * All rights reserved.
  *
diff --git a/sys/kern/subr_param.c b/sys/kern/subr_param.c
index e28e738642eff..7c6f6eba3d912 100644
--- a/sys/kern/subr_param.c
+++ b/sys/kern/subr_param.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1980, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/subr_pcpu.c b/sys/kern/subr_pcpu.c
index 59d8f2d091a25..6b7907b558c56 100644
--- a/sys/kern/subr_pcpu.c
+++ b/sys/kern/subr_pcpu.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001 Wind River Systems, Inc.
  * All rights reserved.
  * Written by: John Baldwin <jhb@FreeBSD.org>
diff --git a/sys/kern/subr_prf.c b/sys/kern/subr_prf.c
index 97ca92810d9b5..aba4c1e23f5b6 100644
--- a/sys/kern/subr_prf.c
+++ b/sys/kern/subr_prf.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1986, 1988, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/subr_prof.c b/sys/kern/subr_prof.c
index a55347b7a1336..2999b6e2577d8 100644
--- a/sys/kern/subr_prof.c
+++ b/sys/kern/subr_prof.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/subr_rtc.c b/sys/kern/subr_rtc.c
index 29b088bcc78d1..34a30879f47ca 100644
--- a/sys/kern/subr_rtc.c
+++ b/sys/kern/subr_rtc.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1982, 1990, 1993
  *	The Regents of the University of California.
diff --git a/sys/kern/subr_scanf.c b/sys/kern/subr_scanf.c
index 8a0ad15d2467c..d2bbe4d76f12e 100644
--- a/sys/kern/subr_scanf.c
+++ b/sys/kern/subr_scanf.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/subr_sglist.c b/sys/kern/subr_sglist.c
index dbc2a5e72feed..ff00203839313 100644
--- a/sys/kern/subr_sglist.c
+++ b/sys/kern/subr_sglist.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 Yahoo!, Inc.
  * All rights reserved.
  * Written by: John Baldwin <jhb@FreeBSD.org>
diff --git a/sys/kern/subr_uio.c b/sys/kern/subr_uio.c
index c47ae4fee4cd9..2b92f5a44268c 100644
--- a/sys/kern/subr_uio.c
+++ b/sys/kern/subr_uio.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/sys_generic.c b/sys/kern/sys_generic.c
index 3a96d909bb602..546b183ee87d7 100644
--- a/sys/kern/sys_generic.c
+++ b/sys/kern/sys_generic.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/sys_socket.c b/sys/kern/sys_socket.c
index 5dd2fb312cd0b..0824fbe299de4 100644
--- a/sys/kern/sys_socket.c
+++ b/sys/kern/sys_socket.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/tty_compat.c b/sys/kern/tty_compat.c
index f36859f918634..8a4545c64e3fd 100644
--- a/sys/kern/tty_compat.c
+++ b/sys/kern/tty_compat.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/tty_info.c b/sys/kern/tty_info.c
index c0242c9bf0d50..ad3e1e778877e 100644
--- a/sys/kern/tty_info.c
+++ b/sys/kern/tty_info.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1990, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/uipc_domain.c b/sys/kern/uipc_domain.c
index f319a2f352783..ca7995bee39d9 100644
--- a/sys/kern/uipc_domain.c
+++ b/sys/kern/uipc_domain.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c
index 6fe5f7630c580..a4bdf6f062a61 100644
--- a/sys/kern/uipc_mbuf.c
+++ b/sys/kern/uipc_mbuf.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1988, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/uipc_mbuf2.c b/sys/kern/uipc_mbuf2.c
index 3568a3aa609a6..41f75f6e6dba1 100644
--- a/sys/kern/uipc_mbuf2.c
+++ b/sys/kern/uipc_mbuf2.c
@@ -2,6 +2,8 @@
 /*	$NetBSD: uipc_mbuf.c,v 1.40 1999/04/01 00:23:25 thorpej Exp $	*/
 
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 1999 WIDE Project.
  * All rights reserved.
  * 
diff --git a/sys/kern/uipc_sockbuf.c b/sys/kern/uipc_sockbuf.c
index 5307d68bd44ee..fa403d7851f2c 100644
--- a/sys/kern/uipc_sockbuf.c
+++ b/sys/kern/uipc_sockbuf.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1988, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c
index ae4c651d686f7..d920f0f6e5e67 100644
--- a/sys/kern/uipc_socket.c
+++ b/sys/kern/uipc_socket.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1988, 1990, 1993
  *	The Regents of the University of California.
  * Copyright (c) 2004 The FreeBSD Foundation
diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c
index ca2f157b00417..90da323d752b7 100644
--- a/sys/kern/uipc_syscalls.c
+++ b/sys/kern/uipc_syscalls.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c
index f594dbba4ef86..cae2e9e942806 100644
--- a/sys/kern/uipc_usrreq.c
+++ b/sys/kern/uipc_usrreq.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  *	The Regents of the University of California.
  * Copyright (c) 2004-2009 Robert N. M. Watson
diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c
index 49a21ba1da559..c963f8227f604 100644
--- a/sys/kern/vfs_cache.c
+++ b/sys/kern/vfs_cache.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/vfs_cluster.c b/sys/kern/vfs_cluster.c
index c77a5ba3eee91..ba1ee92d167d8 100644
--- a/sys/kern/vfs_cluster.c
+++ b/sys/kern/vfs_cluster.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
  * Modifications/enhancements:
diff --git a/sys/kern/vfs_default.c b/sys/kern/vfs_default.c
index 608cbad1ffc81..ec37c38509e5c 100644
--- a/sys/kern/vfs_default.c
+++ b/sys/kern/vfs_default.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/vfs_export.c b/sys/kern/vfs_export.c
index 5fce9ed4b28d6..2f67c054f5f97 100644
--- a/sys/kern/vfs_export.c
+++ b/sys/kern/vfs_export.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/vfs_init.c b/sys/kern/vfs_init.c
index 3a8044bdeb3ad..92186bfb5aaa6 100644
--- a/sys/kern/vfs_init.c
+++ b/sys/kern/vfs_init.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/sys/kern/vfs_lookup.c b/sys/kern/vfs_lookup.c
index c70329602226f..cc359444c0912 100644
--- a/sys/kern/vfs_lookup.c
+++ b/sys/kern/vfs_lookup.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c
index 5141de78c6058..dd28dce8567e6 100644
--- a/sys/kern/vfs_mount.c
+++ b/sys/kern/vfs_mount.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1999-2004 Poul-Henning Kamp
  * Copyright (c) 1999 Michael Smith
  * Copyright (c) 1989, 1993
diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c
index 414924b6fd843..1c67c6a83c244 100644
--- a/sys/kern/vfs_mountroot.c
+++ b/sys/kern/vfs_mountroot.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2010 Marcel Moolenaar
  * Copyright (c) 1999-2004 Poul-Henning Kamp
  * Copyright (c) 1999 Michael Smith
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index 53ec47b525e9e..ed0a1942fe156 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index be8a9f512ed1b..7114ca9f3d948 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c
index 934db8725e440..40618cac8a8d1 100644
--- a/sys/kern/vfs_vnops.c
+++ b/sys/kern/vfs_vnops.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.