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Commit d5f541ed authored by Christoph Lameter's avatar Christoph Lameter Committed by Linus Torvalds
Browse files

[PATCH] Add node to zone for the NUMA case 



Add the node in order to optimize zone_to_nid.

Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
Acked-by: default avatarPaul Jackson <pj@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 765c4507

include/linux/mm.h

+5 −1
Original line number Diff line number Diff line
@@ -446,7 +446,11 @@ static inline struct zone *page_zone(struct page *page) 


static inline unsigned long zone_to_nid(struct zone *zone)

{

	return zone->zone_pgdat->node_id;

#ifdef CONFIG_NUMA

	return zone->node;

#else

	return 0;

#endif

}



static inline unsigned long page_to_nid(struct page *page)

include/linux/mmzone.h

+1 −0
Original line number Diff line number Diff line
@@ -168,6 +168,7 @@ struct zone { 
	unsigned long		lowmem_reserve[MAX_NR_ZONES];



#ifdef CONFIG_NUMA

	int node;

	/*

	 * zone reclaim becomes active if more unmapped pages exist.

	 */

mm/page_alloc.c

+1 −0
Original line number Diff line number Diff line
@@ -2405,6 +2405,7 @@ static void __meminit free_area_init_core(struct pglist_data *pgdat, 
		zone->spanned_pages = size;

		zone->present_pages = realsize;

#ifdef CONFIG_NUMA

		zone->node = nid;

		zone->min_unmapped_pages = (realsize*sysctl_min_unmapped_ratio)

						/ 100;

		zone->min_slab_pages = (realsize * sysctl_min_slab_ratio) / 100;