Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:

 - large KASAN update to use arm's "software tag-based mode"

 - a few misc things

 - sh updates

 - ocfs2 updates

 - just about all of MM

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (167 commits)
  kernel/fork.c: mark 'stack_vm_area' with __maybe_unused
  memcg, oom: notify on oom killer invocation from the charge path
  mm, swap: fix swapoff with KSM pages
  include/linux/gfp.h: fix typo
  mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
  hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race
  hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization
  memory_hotplug: add missing newlines to debugging output
  mm: remove __hugepage_set_anon_rmap()
  include/linux/vmstat.h: remove unused page state adjustment macro
  mm/page_alloc.c: allow error injection
  mm: migrate: drop unused argument of migrate_page_move_mapping()
  blkdev: avoid migration stalls for blkdev pages
  mm: migrate: provide buffer_migrate_page_norefs()
  mm: migrate: move migrate_page_lock_buffers()
  mm: migrate: lock buffers before migrate_page_move_mapping()
  mm: migration: factor out code to compute expected number of page references
  mm, page_alloc: enable pcpu_drain with zone capability
  kmemleak: add config to select auto scan
  mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init
  ...

9 files changed, 17 insertions, 43 deletions

diff --git a/arch/sh/include/cpu-sh4/cpu/addrspace.h b/arch/sh/include/cpu-sh4/cpu/addrspace.h
index d51da25da72c..f006c9489f5a 100644
--- a/arch/sh/include/cpu-sh4/cpu/addrspace.h
+++ b/arch/sh/include/cpu-sh4/cpu/addrspace.h
@@ -1,7 +1,4 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
+/* SPDX-License-Identifier: GPL-2.0
  *
  * Copyright (C) 1999 by Kaz Kojima
  *
diff --git a/arch/sh/include/cpu-sh4/cpu/cache.h b/arch/sh/include/cpu-sh4/cpu/cache.h
index 92c4cd119b66..72b4d13da127 100644
--- a/arch/sh/include/cpu-sh4/cpu/cache.h
+++ b/arch/sh/include/cpu-sh4/cpu/cache.h
@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * include/asm-sh/cpu-sh4/cache.h
  *
  * Copyright (C) 1999 Niibe Yutaka
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #ifndef __ASM_CPU_SH4_CACHE_H
 #define __ASM_CPU_SH4_CACHE_H
diff --git a/arch/sh/include/cpu-sh4/cpu/dma-register.h b/arch/sh/include/cpu-sh4/cpu/dma-register.h
index 9cd81e54056a..53f7ab990d88 100644
--- a/arch/sh/include/cpu-sh4/cpu/dma-register.h
+++ b/arch/sh/include/cpu-sh4/cpu/dma-register.h
@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * SH4 CPU-specific DMA definitions, used by both DMA drivers
  *
  * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #ifndef CPU_DMA_REGISTER_H
 #define CPU_DMA_REGISTER_H
diff --git a/arch/sh/include/cpu-sh4/cpu/fpu.h b/arch/sh/include/cpu-sh4/cpu/fpu.h
index febef7342528..29f451bfef19 100644
--- a/arch/sh/include/cpu-sh4/cpu/fpu.h
+++ b/arch/sh/include/cpu-sh4/cpu/fpu.h
@@ -1,12 +1,10 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h
  *
  * Copyright (C) 2006 STMicroelectronics Limited
  * Author: Carl Shaw <carl.shaw@st.com>
  *
- * May be copied or modified under the terms of the GNU General Public
- * License Version 2.  See linux/COPYING for more information.
- *
  * Definitions for SH4 FPU operations
  */
 
diff --git a/arch/sh/include/cpu-sh4/cpu/freq.h b/arch/sh/include/cpu-sh4/cpu/freq.h
index 1631fc238e6f..662f0f30e106 100644
--- a/arch/sh/include/cpu-sh4/cpu/freq.h
+++ b/arch/sh/include/cpu-sh4/cpu/freq.h
@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * include/asm-sh/cpu-sh4/freq.h
  *
  * Copyright (C) 2002, 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #ifndef __ASM_CPU_SH4_FREQ_H
 #define __ASM_CPU_SH4_FREQ_H
diff --git a/arch/sh/include/cpu-sh4/cpu/mmu_context.h b/arch/sh/include/cpu-sh4/cpu/mmu_context.h
index e46ec708105a..421b56d5c595 100644
--- a/arch/sh/include/cpu-sh4/cpu/mmu_context.h
+++ b/arch/sh/include/cpu-sh4/cpu/mmu_context.h
@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * include/asm-sh/cpu-sh4/mmu_context.h
  *
  * Copyright (C) 1999 Niibe Yutaka
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #ifndef __ASM_CPU_SH4_MMU_CONTEXT_H
 #define __ASM_CPU_SH4_MMU_CONTEXT_H
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7786.h b/arch/sh/include/cpu-sh4/cpu/sh7786.h
index 96b8cb1f754a..8f9bfbf3cdb1 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7786.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7786.h
@@ -1,14 +1,11 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * SH7786 Pinmux
  *
  * Copyright (C) 2008, 2009  Renesas Solutions Corp.
  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
  *
  *  Based on sh7785.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 
 #ifndef __CPU_SH7786_H__
diff --git a/arch/sh/include/cpu-sh4/cpu/sq.h b/arch/sh/include/cpu-sh4/cpu/sq.h
index 74716ba2dc3c..81966e41fc21 100644
--- a/arch/sh/include/cpu-sh4/cpu/sq.h
+++ b/arch/sh/include/cpu-sh4/cpu/sq.h
@@ -1,12 +1,9 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * include/asm-sh/cpu-sh4/sq.h
  *
  * Copyright (C) 2001, 2002, 2003  Paul Mundt
  * Copyright (C) 2001, 2002  M. R. Brown
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #ifndef __ASM_CPU_SH4_SQ_H
 #define __ASM_CPU_SH4_SQ_H
diff --git a/arch/sh/include/cpu-sh4/cpu/watchdog.h b/arch/sh/include/cpu-sh4/cpu/watchdog.h
index 7f62b9380938..fa7bcb398b8c 100644
--- a/arch/sh/include/cpu-sh4/cpu/watchdog.h
+++ b/arch/sh/include/cpu-sh4/cpu/watchdog.h
@@ -1,13 +1,10 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * include/asm-sh/cpu-sh4/watchdog.h
  *
  * Copyright (C) 2002, 2003 Paul Mundt
  * Copyright (C) 2009 Siemens AG
  * Copyright (C) 2009 Sitdikov Valentin
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #ifndef __ASM_CPU_SH4_WATCHDOG_H
 #define __ASM_CPU_SH4_WATCHDOG_H