By using for_each_online_pgdat(), pgdat_list is not necessary now.
This patch removes it.
Signed-Off-By: KAMEZAWA Hiroyuki <[email protected]>
Index: linux-2.6.16-rc4-mm2/mm/page_alloc.c
===================================================================
--- linux-2.6.16-rc4-mm2.orig/mm/page_alloc.c
+++ linux-2.6.16-rc4-mm2/mm/page_alloc.c
@@ -49,7 +49,6 @@ nodemask_t node_online_map __read_mostly
EXPORT_SYMBOL(node_online_map);
nodemask_t node_possible_map __read_mostly = NODE_MASK_ALL;
EXPORT_SYMBOL(node_possible_map);
-struct pglist_data *pgdat_list __read_mostly;
unsigned long totalram_pages __read_mostly;
unsigned long totalhigh_pages __read_mostly;
long nr_swap_pages;
@@ -2243,8 +2242,9 @@ static void *frag_start(struct seq_file
{
pg_data_t *pgdat;
loff_t node = *pos;
-
- for (pgdat = pgdat_list; pgdat && node; pgdat = pgdat->pgdat_next)
+ for (pgdat = first_online_pgdat();
+ pgdat && node;
+ pgdat = next_online_pgdat(pgdat))
--node;
return pgdat;
@@ -2255,7 +2255,7 @@ static void *frag_next(struct seq_file *
pg_data_t *pgdat = (pg_data_t *)arg;
(*pos)++;
- return pgdat->pgdat_next;
+ return next_online_pgdat(pgdat);
}
static void frag_stop(struct seq_file *m, void *arg)
Index: linux-2.6.16-rc4-mm2/include/linux/mmzone.h
===================================================================
--- linux-2.6.16-rc4-mm2.orig/include/linux/mmzone.h
+++ linux-2.6.16-rc4-mm2/include/linux/mmzone.h
@@ -307,7 +307,6 @@ typedef struct pglist_data {
unsigned long node_spanned_pages; /* total size of physical page
range, including holes */
int node_id;
- struct pglist_data *pgdat_next;
wait_queue_head_t kswapd_wait;
struct task_struct *kswapd;
int kswapd_max_order;
@@ -324,8 +323,6 @@ typedef struct pglist_data {
#include <linux/memory_hotplug.h>
-extern struct pglist_data *pgdat_list;
-
void __get_zone_counts(unsigned long *active, unsigned long *inactive,
unsigned long *free, struct pglist_data *pgdat);
void get_zone_counts(unsigned long *active, unsigned long *inactive,
-
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