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Commit d0048b0e59c1218d62bb4d014f34bbd7e7c0a214

Authored by Bob Liu
Committed by Linus Torvalds
1 parent 3ed28fa108
Exists in master and in 6 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

page_alloc: break early in check_for_regular_memory() 

If there is a zone below ZONE_NORMAL has present_pages, we can set node
state to N_NORMAL_MEMORY, no need to loop to end.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 3 additions and 1 deletions Side-by-side Diff

... ... @@ -4642,8 +4642,10 @@
4642 4642  
4643 4643 for (zone_type = 0; zone_type <= ZONE_NORMAL; zone_type++) {
4644 4644 struct zone *zone = &pgdat->node_zones[zone_type];
4645   - if (zone->present_pages)
  4645 + if (zone->present_pages) {
4646 4646 node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY);
  4647 + break;
  4648 + }
4647 4649 }
4648 4650 #endif
4649 4651 }