Commit 96cb4df5 authored by Minchan Kim's avatar Minchan Kim Committed by Linus Torvalds
Browse files

page-allocator: add inactive ratio calculation function of each zone 



Factor the per-zone arithemetic inside setup_per_zone_inactive_ratio()'s
loop into a a separate function, calculate_zone_inactive_ratio().  This
function will be used in a later patch

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: default avatarMinchan Kim <minchan.kim@gmail.com>
Reviewed-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bc75d33f

include/linux/mm.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -1053,6 +1053,7 @@ extern void set_dma_reserve(unsigned long new_dma_reserve); 
extern void memmap_init_zone(unsigned long, int, unsigned long,

extern void memmap_init_zone(unsigned long, int, unsigned long,

				unsigned long, enum memmap_context);

				unsigned long, enum memmap_context);

extern void setup_per_zone_wmarks(void);

extern void setup_per_zone_wmarks(void);

extern void calculate_zone_inactive_ratio(struct zone *zone);

extern void mem_init(void);

extern void mem_init(void);

extern void __init mmap_init(void);

extern void __init mmap_init(void);

extern void show_mem(void);

extern void show_mem(void);

mm/page_alloc.c

+16 −12
Original line number Original line Diff line number Diff line
@@ -4478,11 +4478,8 @@ void setup_per_zone_wmarks(void) 
 *    1TB     101        10GB

 *    1TB     101        10GB

 *   10TB     320        32GB

 *   10TB     320        32GB

 */

 */

static void __init setup_per_zone_inactive_ratio(void)

void calculate_zone_inactive_ratio(struct zone *zone)

{

{

	struct zone *zone;



	for_each_zone(zone) {

	unsigned int gb, ratio;

	unsigned int gb, ratio;





	/* Zone size in gigabytes */

	/* Zone size in gigabytes */
@@ -4494,6 +4491,13 @@ static void __init setup_per_zone_inactive_ratio(void) 




	zone->inactive_ratio = ratio;

	zone->inactive_ratio = ratio;

}

}



static void __init setup_per_zone_inactive_ratio(void)

{

	struct zone *zone;



	for_each_zone(zone)

		calculate_zone_inactive_ratio(zone);

}

}





/*

/*

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