dm: add missing SPDX-License-Indentifiers

'GPL-2.0-only' is used instead of 'GPL-2.0' because SPDX has
deprecated its use.
Suggested-by: John Wiele <jwiele@redhat.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

drivers/md/dm-audit.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Creating audit records for mapped devices.
  *

drivers/md/dm-bio-prison-v1.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/dm-bio-prison-v1.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011-2017 Red Hat, Inc.
  *

drivers/md/dm-bio-prison-v2.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012-2017 Red Hat, Inc.
  *

drivers/md/dm-bio-prison-v2.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011-2017 Red Hat, Inc.
  *

drivers/md/dm-bio-record.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
  *

drivers/md/dm-bufio.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2009-2011 Red Hat, Inc.
  *

drivers/md/dm-builtin.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 #include "dm-core.h"
 
 /*

drivers/md/dm-cache-background-tracker.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2017 Red Hat. All rights reserved.
  *

drivers/md/dm-cache-background-tracker.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2017 Red Hat. All rights reserved.
  *

drivers/md/dm-cache-block-types.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/dm-cache-metadata.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/dm-cache-metadata.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/dm-cache-policy-internal.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2012 Red Hat. All rights reserved.
  *

drivers/md/dm-cache-policy-smq.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2015 Red Hat. All rights reserved.
  *

drivers/md/dm-cache-policy.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012 Red Hat. All rights reserved.
  *

drivers/md/dm-cache-policy.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2012 Red Hat. All rights reserved.
  *

drivers/md/dm-cache-target.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012 Red Hat. All rights reserved.
  *

drivers/md/dm-core.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Internal header file _only_ for device mapper core
  *

drivers/md/dm-crypt.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Jana Saout <jana@saout.de>
  * Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org>

drivers/md/dm-delay.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2005-2007 Red Hat GmbH
  *

drivers/md/dm-dust.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2018 Red Hat, Inc.
  *

drivers/md/dm-ebs-target.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2020 Red Hat GmbH
  *

drivers/md/dm-exception-store.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
  * Copyright (C) 2006-2008 Red Hat GmbH

drivers/md/dm-exception-store.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
  * Copyright (C) 2008 Red Hat, Inc. All rights reserved.

drivers/md/dm-flakey.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software (UK) Limited.
  * Copyright (C) 2004, 2010-2011 Red Hat, Inc. All rights reserved.

drivers/md/dm-ima.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2021 Microsoft Corporation
  *

drivers/md/dm-ima.h

-/* SPDX-License-Identifier: GPL-2.0
- *
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
  * Copyright (C) 2021 Microsoft Corporation
  *
  * Author: Tushar Sugandhi <tusharsu@linux.microsoft.com>

drivers/md/dm-init.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 
 /*
  * dm-init.c

drivers/md/dm-integrity.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2016-2017 Red Hat, Inc. All rights reserved.
  * Copyright (C) 2016-2017 Milan Broz

drivers/md/dm-io-rewind.c

-/* SPDX-License-Identifier: GPL-2.0 */
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2022 Red Hat, Inc.
  */

drivers/md/dm-io-tracker.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2021 Red Hat, Inc. All rights reserved.
  *

drivers/md/dm-io.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software
  * Copyright (C) 2006 Red Hat GmbH

drivers/md/dm-ioctl.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
  * Copyright (C) 2004 - 2006 Red Hat, Inc. All rights reserved.

drivers/md/dm-kcopyd.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2002 Sistina Software (UK) Limited.
  * Copyright (C) 2006 Red Hat GmbH

drivers/md/dm-linear.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001-2003 Sistina Software (UK) Limited.
  *

drivers/md/dm-log-userspace-base.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2006-2009 Red Hat, Inc.
  *

drivers/md/dm-log-userspace-transfer.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2006-2009 Red Hat, Inc.
  *

drivers/md/dm-log-userspace-transfer.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2006-2009 Red Hat, Inc.
  *

drivers/md/dm-log-writes.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2014 Facebook. All rights reserved.
  *

drivers/md/dm-log.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.

drivers/md/dm-mpath.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software Limited.
  * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.

drivers/md/dm-mpath.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
  *

drivers/md/dm-path-selector.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software.
  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.

drivers/md/dm-path-selector.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2003 Sistina Software.
  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.

drivers/md/dm-ps-historical-service-time.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Historical Service Time
  *

drivers/md/dm-ps-queue-length.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2004-2005 IBM Corp.  All Rights Reserved.
  * Copyright (C) 2006-2009 NEC Corporation.

drivers/md/dm-ps-round-robin.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software.
  * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.

drivers/md/dm-ps-service-time.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2007-2009 NEC Corporation.  All Rights Reserved.
  *

drivers/md/dm-raid.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2010-2011 Neil Brown
  * Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved.

drivers/md/dm-raid1.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software Limited.
  * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.

drivers/md/dm-region-hash.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Sistina Software Limited.
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.

drivers/md/dm-rq.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2016 Red Hat, Inc. All rights reserved.
  *

drivers/md/dm-rq.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Internal header file for device mapper
  *

drivers/md/dm-snap-persistent.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
  * Copyright (C) 2006-2008 Red Hat GmbH

drivers/md/dm-snap-transient.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
  * Copyright (C) 2006-2008 Red Hat GmbH

drivers/md/dm-snap.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
  *

drivers/md/dm-stats.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/errno.h>
 #include <linux/numa.h>
 #include <linux/slab.h>

drivers/md/dm-stripe.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001-2003 Sistina Software (UK) Limited.
  *

drivers/md/dm-switch.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2010-2012 by Dell Inc.  All rights reserved.
  * Copyright (C) 2011-2013 Red Hat, Inc.

drivers/md/dm-sysfs.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2008 Red Hat, Inc. All rights reserved.
  *

drivers/md/dm-table.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001 Sistina Software (UK) Limited.
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.

drivers/md/dm-target.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001 Sistina Software (UK) Limited
  *

drivers/md/dm-thin-metadata.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011-2012 Red Hat, Inc.
  *

drivers/md/dm-thin-metadata.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2010-2011 Red Hat, Inc.
  *

drivers/md/dm-thin.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011-2012 Red Hat UK.
  *

drivers/md/dm-unstripe.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2017 Intel Corporation.
  *

drivers/md/dm-verity-verify-sig.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2019 Microsoft Corporation.
  *

drivers/md/dm-verity-verify-sig.h

-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2019 Microsoft Corporation.
  *

drivers/md/dm-writecache.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2018 Red Hat. All rights reserved.
  *

drivers/md/dm-zero.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2003 Jana Saout <jana@saout.de>
  *

drivers/md/dm-zone.c

-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2021 Western Digital Corporation or its affiliates.
  */

drivers/md/dm.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.

drivers/md/persistent-data/dm-array.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-array.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-bitset.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-bitset.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2012 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-block-manager.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-block-manager.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-btree-internal.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-btree-remove.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-btree-spine.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-btree.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-btree.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-persistent-data-internal.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map-common.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map-common.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map-disk.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map-disk.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map-metadata.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map-metadata.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-space-map.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-transaction-manager.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

drivers/md/persistent-data/dm-transaction-manager.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *

include/linux/device-mapper.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2001 Sistina Software (UK) Limited.
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.

include/linux/dm-bufio.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2009-2011 Red Hat, Inc.
  *

include/linux/dm-dirty-log.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2003 Sistina Software
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.

include/linux/dm-io.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2003 Sistina Software
  * Copyright (C) 2004 - 2008 Red Hat, Inc. All rights reserved.

include/linux/dm-kcopyd.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2001 - 2003 Sistina Software
  * Copyright (C) 2004 - 2008 Red Hat, Inc. All rights reserved.

include/linux/dm-region-hash.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2003 Sistina Software Limited.
  * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.