diff options
| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2009-03-31 15:19:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-01 08:59:11 -0700 |
| commit | ee99c71c59f897436ec65debb99372b3146f9985 (patch) | |
| tree | 051f1c43b7c7658689d4b2c23b3d8585d6464a89 /mm/vmscan.c | |
| parent | a6dc60f8975ad96d162915e07703a4439c80dcf0 (diff) | |
| download | lwn-ee99c71c59f897436ec65debb99372b3146f9985.tar.gz lwn-ee99c71c59f897436ec65debb99372b3146f9985.zip | |
mm: introduce for_each_populated_zone() macro
Impact: cleanup
In almost cases, for_each_zone() is used with populated_zone(). It's
because almost function doesn't need memoryless node information.
Therefore, for_each_populated_zone() can help to make code simplify.
This patch has no functional change.
[akpm@linux-foundation.org: small cleanup]
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 1bca60f0c527..301f057fd115 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2061,11 +2061,9 @@ static unsigned long shrink_all_zones(unsigned long nr_pages, int prio, struct zone *zone; unsigned long ret = 0; - for_each_zone(zone) { + for_each_populated_zone(zone) { enum lru_list l; - if (!populated_zone(zone)) - continue; if (zone_is_all_unreclaimable(zone) && prio != DEF_PRIORITY) continue; |