[PATCH] wait_table and zonelist initializing for memory hotadd: change name of wait_table_size()

This is just to rename from wait_table_size() to wait_table_hash_nr_entries().
Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/linux/mmzone.h

@@ -197,7 +197,7 @@ struct zone {
 
 	/*
 	 * wait_table		-- the array holding the hash table
-	 * wait_table_size	-- the size of the hash table array
+	 * wait_table_hash_nr_entries	-- the size of the hash table array
 	 * wait_table_bits	-- wait_table_size == (1 << wait_table_bits)
 	 *
 	 * The purpose of all these is to keep track of the people
@@ -220,7 +220,7 @@ struct zone {
 	 * free_area_init_core() performs the initialization of them.
 	 */
 	wait_queue_head_t	* wait_table;
-	unsigned long		wait_table_size;
+	unsigned long		wait_table_hash_nr_entries;
 	unsigned long		wait_table_bits;
 
 	/*

mm/page_alloc.c

@@ -1727,7 +1727,7 @@ void __init build_all_zonelists(void)
  */
 #define PAGES_PER_WAITQUEUE	256
 
-static inline unsigned long wait_table_size(unsigned long pages)
+static inline unsigned long wait_table_hash_nr_entries(unsigned long pages)
 {
 	unsigned long size = 1;
 
@@ -2019,13 +2019,15 @@ void zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages)
 	 * The per-page waitqueue mechanism uses hashed waitqueues
 	 * per zone.
 	 */
-	zone->wait_table_size = wait_table_size(zone_size_pages);
-	zone->wait_table_bits =	wait_table_bits(zone->wait_table_size);
+	zone->wait_table_hash_nr_entries =
+		 wait_table_hash_nr_entries(zone_size_pages);
+	zone->wait_table_bits =
+		wait_table_bits(zone->wait_table_hash_nr_entries);
 	zone->wait_table = (wait_queue_head_t *)
-		alloc_bootmem_node(pgdat, zone->wait_table_size
+		alloc_bootmem_node(pgdat, zone->wait_table_hash_nr_entries
 					* sizeof(wait_queue_head_t));
 
-	for(i = 0; i < zone->wait_table_size; ++i)
+	for(i = 0; i < zone->wait_table_hash_nr_entries; ++i)
 		init_waitqueue_head(zone->wait_table + i);
 }