[RFC][PATCH] bdata and pgdat initialization cleanup [3/5] remove pgdat->bdata

[RFC][PATCH] bdata and pgdat initialization cleanup [3/5] remove pgdat->bdata

[KAMEZAWA Hiroyuki]

Because pgdat is not used in bootmem.c, pgdat->bdata can be removed.

Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

Index: testtree/include/linux/mmzone.h
===================================================================
--- testtree.orig/include/linux/mmzone.h
+++ testtree/include/linux/mmzone.h
@@ -292,7 +292,6 @@ typedef struct pglist_data {
  #ifdef CONFIG_FLAT_NODE_MEM_MAP
  	struct page *node_mem_map;
  #endif
-	struct bootmem_data *bdata;
  #ifdef CONFIG_MEMORY_HOTPLUG
  	/*
  	 * Must be held any time you expect node_start_pfn, node_present_pages
Index: testtree/mm/page_alloc.c
===================================================================
--- testtree.orig/mm/page_alloc.c
+++ testtree/mm/page_alloc.c
@@ -2224,7 +2224,7 @@ void __init free_area_init_node(int nid,
  }

  #ifndef CONFIG_NEED_MULTIPLE_NODES
-struct pglist_data contig_page_data = { .bdata = BOOTMEM(0)};
+struct pglist_data contig_page_data;

  EXPORT_SYMBOL(contig_page_data);
  #endif

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