[PATCH v2 tip/core/rcu 10/19] linux/rcu_node_tree: Convert to SPDX license identifier

[Paul E. McKenney]

Replace the license boiler plate with a SPDX license identifier.
While in the area, update an email address.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
[ paulmck: Update .h SPDX comment format per Joe Perches. ]
---
 include/linux/rcu_node_tree.h | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/include/linux/rcu_node_tree.h b/include/linux/rcu_node_tree.h
index 426cee67f0e2..b8e094b125ee 100644
--- a/include/linux/rcu_node_tree.h
+++ b/include/linux/rcu_node_tree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * RCU node combining tree definitions.  These are used to compute
  * global attributes while avoiding common-case global contention.  A key
@@ -11,23 +12,9 @@
  * because the size of the TREE SRCU srcu_struct structure depends
  * on these definitions.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, you can access it online at
- * http://www.gnu.org/licenses/gpl-2.0.html.
- *
  * Copyright IBM Corporation, 2017
  *
- * Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
+ * Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
  */
 
 #ifndef __LINUX_RCU_NODE_TREE_H
-- 
2.17.1