treewide: Add SPDX license identifier for missed files

Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 8b78274..0ff3fac 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/fs/nfs/delegation.c
  *
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 47d445b..57b6a45 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/fs/nfs/dir.c
  *
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 2436bd9..0cb4424 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/fs/nfs/direct.c
  *
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 144e183..95dc905 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/fs/nfs/file.c
  *
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 15f099a..9287eb6 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/fs/nfs/namespace.c
  *
diff --git a/fs/nfs/nfs3client.c b/fs/nfs/nfs3client.c
index 1afdb0f..fb0c425 100644
--- a/fs/nfs/nfs3client.c
+++ b/fs/nfs/nfs3client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/nfs_fs.h>
 #include <linux/nfs_mount.h>
 #include <linux/sunrpc/addr.h>
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 3ce2463..81b9b6d 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index bcb532d..4145a01 100644
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * fs/nfs/nfs4session.c
  *
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 6ec3001..6ef5278 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/fs/nfs/pagelist.c
  *
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index f5ad75f..c0046c3 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Common NFS I/O  operations for the pnfs file based
  * layout drivers.
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index c799e54..c19841c 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/fs/nfs/read.c
  *
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index d6c6874..f88ddac 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/fs/nfs/super.c
  *
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index bc5bb93..059a7c3 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/fs/nfs/write.c
  *