Merge branch 'akpm' (patches from Andrew)

Merge updates from Andrew Morton:

 - A few misc subsystems: kthread, scripts, ntfs, ocfs2, block, and vfs

 - Most the MM patches which precede the patches in Willy's tree: kasan,
   pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap,
   sparsemem, vmalloc, pagealloc, memory-failure, mlock, hugetlb,
   userfaultfd, vmscan, compaction, mempolicy, oom-kill, migration, thp,
   cma, autonuma, psi, ksm, page-poison, madvise, memory-hotplug, rmap,
   zswap, uaccess, ioremap, highmem, cleanups, kfence, hmm, and damon.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (227 commits)
  mm/damon/sysfs: remove repeat container_of() in damon_sysfs_kdamond_release()
  Docs/ABI/testing: add DAMON sysfs interface ABI document
  Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface
  selftests/damon: add a test for DAMON sysfs interface
  mm/damon/sysfs: support DAMOS stats
  mm/damon/sysfs: support DAMOS watermarks
  mm/damon/sysfs: support schemes prioritization
  mm/damon/sysfs: support DAMOS quotas
  mm/damon/sysfs: support DAMON-based Operation Schemes
  mm/damon/sysfs: support the physical address space monitoring
  mm/damon/sysfs: link DAMON for virtual address spaces monitoring
  mm/damon: implement a minimal stub for sysfs-based DAMON interface
  mm/damon/core: add number of each enum type values
  mm/damon/core: allow non-exclusive DAMON start/stop
  Docs/damon: update outdated term 'regions update interval'
  Docs/vm/damon/design: update DAMON-Idle Page Tracking interference handling
  Docs/vm/damon: call low level monitoring primitives the operations
  mm/damon: remove unnecessary CONFIG_DAMON option
  mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}()
  mm/damon/dbgfs-test: fix is_target_id() change
  ...

1 files changed, 20 insertions, 13 deletions

diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index c6b1213086d6..e8b061557887 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -738,17 +738,6 @@ void __init x86_numa_init(void)
 	numa_init(dummy_numa_init);
 }
 
-static void __init init_memory_less_node(int nid)
-{
-	/* Allocate and initialize node data. Memory-less node is now online.*/
-	alloc_node_data(nid);
-	free_area_init_memoryless_node(nid);
-
-	/*
-	 * All zonelists will be built later in start_kernel() after per cpu
-	 * areas are initialized.
-	 */
-}
 
 /*
  * A node may exist which has one or more Generic Initiators but no CPUs and no
@@ -766,9 +755,18 @@ void __init init_gi_nodes(void)
 {
 	int nid;
 
+	/*
+	 * Exclude this node from
+	 * bringup_nonboot_cpus
+	 *  cpu_up
+	 *   __try_online_node
+	 *    register_one_node
+	 * because node_subsys is not initialized yet.
+	 * TODO remove dependency on node_online
+	 */
 	for_each_node_state(nid, N_GENERIC_INITIATOR)
 		if (!node_online(nid))
-			init_memory_less_node(nid);
+			node_set_online(nid);
 }
 
 /*
@@ -798,8 +796,17 @@ void __init init_cpu_to_node(void)
 		if (node == NUMA_NO_NODE)
 			continue;
 
+		/*
+		 * Exclude this node from
+		 * bringup_nonboot_cpus
+		 *  cpu_up
+		 *   __try_online_node
+		 *    register_one_node
+		 * because node_subsys is not initialized yet.
+		 * TODO remove dependency on node_online
+		 */
 		if (!node_online(node))
-			init_memory_less_node(node);
+			node_set_online(node);
 
 		numa_set_node(cpu, node);
 	}