treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 248

Based on 1 normalized pattern(s):

this file is released under the gpl v2

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 3 file(s).

Signed-off-by: Thomas Gleixner <[e-mail]>
Reviewed-by: Alexios Zavras <[e-mail]>
Reviewed-by: Allison Randal <[e-mail]>
Reviewed-by: Armijn Hemel <[e-mail]>
Cc: [e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

kernel/power/poweroff.c

···
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * poweroff.c - sysrq handler to gracefully power down machine.
- *
- * This file is released under the GPL v2
  */
 
 #include <linux/kernel.h>

lib/klist.c

···
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * klist.c - Routines for manipulating klists.
  *
  * Copyright (C) 2005 Patrick Mochel
- *
- * This file is released under the GPL v2.
  *
  * This klist interface provides a couple of structures that wrap around
  * struct list_head to provide explicit list "head" (struct klist) and list

mm/interval_tree.c

···
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * mm/interval_tree.c - interval tree for mapping->i_mmap
  *
  * Copyright (C) 2012, Michel Lespinasse <[e-mail]>
- *
- * This file is released under the GPL v2.
  */
 
 #include <linux/mm.h>