Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:
 "257 patches.

  Subsystems affected by this patch series: scripts, ocfs2, vfs, and
  mm (slab-generic, slab, slub, kconfig, dax, kasan, debug, pagecache,
  gup, swap, memcg, pagemap, mprotect, mremap, iomap, tracing, vmalloc,
  pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, tools,
  memblock, oom-kill, hugetlbfs, migration, thp, readahead, nommu, ksm,
  vmstat, madvise, memory-hotplug, rmap, zsmalloc, highmem, zram,
  cleanups, kfence, and damon)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (257 commits)
  mm/damon: remove return value from before_terminate callback
  mm/damon: fix a few spelling mistakes in comments and a pr_debug message
  mm/damon: simplify stop mechanism
  Docs/admin-guide/mm/pagemap: wordsmith page flags descriptions
  Docs/admin-guide/mm/damon/start: simplify the content
  Docs/admin-guide/mm/damon/start: fix a wrong link
  Docs/admin-guide/mm/damon/start: fix wrong example commands
  mm/damon/dbgfs: add adaptive_targets list check before enable monitor_on
  mm/damon: remove unnecessary variable initialization
  Documentation/admin-guide/mm/damon: add a document for DAMON_RECLAIM
  mm/damon: introduce DAMON-based Reclamation (DAMON_RECLAIM)
  selftests/damon: support watermarks
  mm/damon/dbgfs: support watermarks
  mm/damon/schemes: activate schemes based on a watermarks mechanism
  tools/selftests/damon: update for regions prioritization of schemes
  mm/damon/dbgfs: support prioritization weights
  mm/damon/vaddr,paddr: support pageout prioritization
  mm/damon/schemes: prioritize regions within the quotas
  mm/damon/selftests: support schemes quotas
  mm/damon/dbgfs: support quotas of schemes
  ...

1 files changed, 10 insertions, 16 deletions

diff --git a/include/linux/memory.h b/include/linux/memory.h
index 182c606adb06..88eb587b5143 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -96,7 +96,6 @@ struct memory_notify {
 	unsigned long start_pfn;
 	unsigned long nr_pages;
 	int status_change_nid_normal;
-	int status_change_nid_high;
 	int status_change_nid;
 };
 
@@ -110,7 +109,7 @@ struct mem_section;
 #define SLAB_CALLBACK_PRI       1
 #define IPC_CALLBACK_PRI        10
 
-#ifndef CONFIG_MEMORY_HOTPLUG_SPARSE
+#ifndef CONFIG_MEMORY_HOTPLUG
 static inline void memory_dev_init(void)
 {
 	return;
@@ -126,7 +125,14 @@ static inline int memory_notify(unsigned long val, void *v)
 {
 	return 0;
 }
-#else
+static inline int hotplug_memory_notifier(notifier_fn_t fn, int pri)
+{
+	return 0;
+}
+/* These aren't inline functions due to a GCC bug. */
+#define register_hotmemory_notifier(nb)    ({ (void)(nb); 0; })
+#define unregister_hotmemory_notifier(nb)  ({ (void)(nb); })
+#else /* CONFIG_MEMORY_HOTPLUG */
 extern int register_memory_notifier(struct notifier_block *nb);
 extern void unregister_memory_notifier(struct notifier_block *nb);
 int create_memory_block_devices(unsigned long start, unsigned long size,
@@ -140,7 +146,6 @@ typedef int (*walk_memory_blocks_func_t)(struct memory_block *, void *);
 extern int walk_memory_blocks(unsigned long start, unsigned long size,
 			      void *arg, walk_memory_blocks_func_t func);
 extern int for_each_memory_block(void *arg, walk_memory_blocks_func_t func);
-#define CONFIG_MEM_BLOCK_SIZE	(PAGES_PER_SECTION<<PAGE_SHIFT)
 
 extern int memory_group_register_static(int nid, unsigned long max_pages);
 extern int memory_group_register_dynamic(int nid, unsigned long unit_pages);
@@ -149,9 +154,6 @@ struct memory_group *memory_group_find_by_id(int mgid);
 typedef int (*walk_memory_groups_func_t)(struct memory_group *, void *);
 int walk_dynamic_memory_groups(int nid, walk_memory_groups_func_t func,
 			       struct memory_group *excluded, void *arg);
-#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
-
-#ifdef CONFIG_MEMORY_HOTPLUG
 #define hotplug_memory_notifier(fn, pri) ({		\
 	static __meminitdata struct notifier_block fn##_mem_nb =\
 		{ .notifier_call = fn, .priority = pri };\
@@ -159,15 +161,7 @@ int walk_dynamic_memory_groups(int nid, walk_memory_groups_func_t func,
 })
 #define register_hotmemory_notifier(nb)		register_memory_notifier(nb)
 #define unregister_hotmemory_notifier(nb) 	unregister_memory_notifier(nb)
-#else
-static inline int hotplug_memory_notifier(notifier_fn_t fn, int pri)
-{
-	return 0;
-}
-/* These aren't inline functions due to a GCC bug. */
-#define register_hotmemory_notifier(nb)    ({ (void)(nb); 0; })
-#define unregister_hotmemory_notifier(nb)  ({ (void)(nb); })
-#endif
+#endif	/* CONFIG_MEMORY_HOTPLUG */
 
 /*
  * Kernel text modification mutex, used for code patching. Users of this lock