[PATCH 2/3] add inactive ratio calculation function of each zone

Minchan Kim
2009-05-20T07:19:29Z

This patch divides setup_per_zone_inactive_ratio with
per zone inactive ratio calculaton.

CC: Rik van Riel <riel@redhat.com>
CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
---
include/linux/mm.h | 1 +
mm/page_alloc.c | 14 +++++++++-----
2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1b2cb16..cede957 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1059,6 +1059,7 @@ extern void set_dma_reserve(unsigned long new_dma_reserve);
extern void memmap_init_zone(unsigned long, int, unsigned long,
unsigned long, enum memmap_context);
extern void setup_per_zone_wmark_min(void);
+extern void calculate_per_zone_inactive_ratio(struct zone* zone);
extern void mem_init(void);
extern void __init mmap_init(void);
extern void show_mem(void);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 273526b..4601ba0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4552,11 +4552,8 @@ void setup_per_zone_wmark_min(void)
* 1TB 101 10GB
* 10TB 320 32GB
*/
-static void __init setup_per_zone_inactive_ratio(void)
+void calculate_per_zone_inactive_ratio(struct zone* zone)
{
- struct zone *zone;
-
- for_each_zone(zone) {
unsigned int gb, ratio;

/* Zone size in gigabytes */
@@ -4567,7 +4564,14 @@ static void __init setup_per_zone_inactive_ratio(void)
ratio = 1;

zone->inactive_ratio = ratio;
- }
+}
+
+static void __init setup_per_zone_inactive_ratio(void)
+{
+ struct zone *zone;
+
+ for_each_zone(zone)
+ calculate_per_zone_inactive_ratio(zone);
}

/*
--
1.5.4.3

--
Kinds Regards
Minchan Kim