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| author | Bob Liu | 2012-01-13 02:19:07 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2012-01-13 05:13:07 +0100 |
| commit | d0048b0e59c1218d62bb4d014f34bbd7e7c0a214 (patch) | |
| tree | f6a69889bcb60b253ab37029616ebe6fa2bd24f9 /mm/page_alloc.c | |
| parent | memcg: cleanup for_each_node_state() (diff) | |
| download | kernel-qcow2-linux-d0048b0e59c1218d62bb4d014f34bbd7e7c0a214.tar.gz kernel-qcow2-linux-d0048b0e59c1218d62bb4d014f34bbd7e7c0a214.tar.xz kernel-qcow2-linux-d0048b0e59c1218d62bb4d014f34bbd7e7c0a214.zip | |
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>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 25c248eb7d5f..9404b38bcdc5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4642,8 +4642,10 @@ static void check_for_regular_memory(pg_data_t *pgdat) for (zone_type = 0; zone_type <= ZONE_NORMAL; zone_type++) { struct zone *zone = &pgdat->node_zones[zone_type]; - if (zone->present_pages) + if (zone->present_pages) { node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY); + break; + } } #endif } |