Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:
 "191 patches.

  Subsystems affected by this patch series: kthread, ia64, scripts,
  ntfs, squashfs, ocfs2, kernel/watchdog, and mm (gup, pagealloc, slab,
  slub, kmemleak, dax, debug, pagecache, gup, swap, memcg, pagemap,
  mprotect, bootmem, dma, tracing, vmalloc, kasan, initialization,
  pagealloc, and memory-failure)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (191 commits)
  mm,hwpoison: make get_hwpoison_page() call get_any_page()
  mm,hwpoison: send SIGBUS with error virutal address
  mm/page_alloc: split pcp->high across all online CPUs for cpuless nodes
  mm/page_alloc: allow high-order pages to be stored on the per-cpu lists
  mm: replace CONFIG_FLAT_NODE_MEM_MAP with CONFIG_FLATMEM
  mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA
  docs: remove description of DISCONTIGMEM
  arch, mm: remove stale mentions of DISCONIGMEM
  mm: remove CONFIG_DISCONTIGMEM
  m68k: remove support for DISCONTIGMEM
  arc: remove support for DISCONTIGMEM
  arc: update comment about HIGHMEM implementation
  alpha: remove DISCONTIGMEM and NUMA
  mm/page_alloc: move free_the_page
  mm/page_alloc: fix counting of managed_pages
  mm/page_alloc: improve memmap_pages dbg msg
  mm: drop SECTION_SHIFT in code comments
  mm/page_alloc: introduce vm.percpu_pagelist_high_fraction
  mm/page_alloc: limit the number of pages on PCP lists when reclaim is active
  mm/page_alloc: scale the number of pages that are batch freed
  ...

arch/sparc/Kconfig

@@ -265,7 +265,7 @@ config NODES_SHIFT
 	int "Maximum NUMA Nodes (as a power of 2)"
 	range 4 5 if SPARC64
 	default "5"
-	depends on NEED_MULTIPLE_NODES
+	depends on NUMA
 	help
 	  Specify the maximum number of NUMA Nodes available on the target
 	  system.  Increases memory reserved to accommodate various tables.

arch/sparc/include/asm/mmzone.h

@@ -2,7 +2,7 @@
 #ifndef _SPARC64_MMZONE_H
 #define _SPARC64_MMZONE_H
 
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 
 #include <linux/cpumask.h>
 
@@ -13,6 +13,6 @@ extern struct pglist_data *node_data[];
 extern int numa_cpu_lookup_table[];
 extern cpumask_t numa_cpumask_lookup_table[];
 
-#endif /* CONFIG_NEED_MULTIPLE_NODES */
+#endif /* CONFIG_NUMA */
 
 #endif /* _SPARC64_MMZONE_H */

arch/sparc/kernel/smp_64.c

@@ -1543,7 +1543,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 					size_t align)
 {
 	const unsigned long goal = __pa(MAX_DMA_ADDRESS);
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 	int node = cpu_to_node(cpu);
 	void *ptr;
 

arch/sparc/mm/init_64.c

@@ -903,7 +903,7 @@ struct node_mem_mask {
 static struct node_mem_mask node_masks[MAX_NUMNODES];
 static int num_node_masks;
 
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 
 struct mdesc_mlgroup {
 	u64	node;
@@ -1059,7 +1059,7 @@ static void __init allocate_node_data(int nid)
 {
 	struct pglist_data *p;
 	unsigned long start_pfn, end_pfn;
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 
 	NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
 					     SMP_CACHE_BYTES, nid);
@@ -1080,7 +1080,7 @@ static void __init allocate_node_data(int nid)
 
 static void init_node_masks_nonnuma(void)
 {
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 	int i;
 #endif
 
@@ -1090,7 +1090,7 @@ static void init_node_masks_nonnuma(void)
 	node_masks[0].match = 0;
 	num_node_masks = 1;
 
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 	for (i = 0; i < NR_CPUS; i++)
 		numa_cpu_lookup_table[i] = 0;
 
@@ -1098,7 +1098,7 @@ static void init_node_masks_nonnuma(void)
 #endif
 }
 
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 struct pglist_data *node_data[MAX_NUMNODES];
 
 EXPORT_SYMBOL(numa_cpu_lookup_table);
@@ -2487,7 +2487,7 @@ int page_in_phys_avail(unsigned long paddr)
 
 static void __init register_page_bootmem_info(void)
 {
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
 	int i;
 
 	for_each_online_node(i)