[Patch:001/005] wait_table and zonelist initializing for memory hotadd (change name of wait_table_size())

From: Yasunori Goto
Date: Tue Apr 11 2006 - 07:30:45 EST



This is just to rename from wait_table_size() to wait_table_hash_nr_entries().

Signed-off-by: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>

include/linux/mmzone.h | 4 ++--
mm/page_alloc.c | 12 +++++++-----
2 files changed, 9 insertions(+), 7 deletions(-)

Index: pgdat10/mm/page_alloc.c
===================================================================
--- pgdat10.orig/mm/page_alloc.c 2006-04-10 18:30:42.000000000 +0900
+++ pgdat10/mm/page_alloc.c 2006-04-10 20:20:09.000000000 +0900
@@ -1786,7 +1786,7 @@ 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;

@@ -2081,13 +2081,15 @@ void zone_wait_table_init(struct zone *z
* 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);
}

Index: pgdat10/include/linux/mmzone.h
===================================================================
--- pgdat10.orig/include/linux/mmzone.h 2006-04-10 18:30:40.000000000 +0900
+++ pgdat10/include/linux/mmzone.h 2006-04-10 20:19:33.000000000 +0900
@@ -196,7 +196,7 @@ 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
@@ -219,7 +219,7 @@ 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;

/*

--
Yasunori Goto


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