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mm: add link from struct lruvec to struct zone

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This is the first stage of struct mem_cgroup_zone removal.  Further
patches replace struct mem_cgroup_zone with a pointer to struct lruvec.

If CONFIG_CGROUP_MEM_RES_CTLR=n lruvec_zone() is just container_of().

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Konstantin Khlebnikov
2012-05-29 15:06:58 -07:00
committed by Linus Torvalds
parent 9e3b2f8cd3
commit 7f5e86c2cc
4 changed files with 30 additions and 10 deletions
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8
mm/page_alloc.c
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@@ -4358,7 +4358,6 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
for (j = 0; j < MAX_NR_ZONES; j++) {
struct zone *zone = pgdat->node_zones + j;
unsigned long size, realsize, memmap_pages;
enum lru_list lru;
size = zone_spanned_pages_in_node(nid, j, zones_size);
realsize = size - zone_absent_pages_in_node(nid, j,
@@ -4408,12 +4407,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
zone->zone_pgdat = pgdat;
zone_pcp_init(zone);
for_each_lru(lru)
INIT_LIST_HEAD(&zone->lruvec.lists[lru]);
zone->lruvec.reclaim_stat.recent_rotated[0] = 0;
zone->lruvec.reclaim_stat.recent_rotated[1] = 0;
zone->lruvec.reclaim_stat.recent_scanned[0] = 0;
zone->lruvec.reclaim_stat.recent_scanned[1] = 0;
lruvec_init(&zone->lruvec, zone);
zap_zone_vm_stats(zone);
zone->flags = 0;
if (!size)