[PATCH] zone_reclaim: configurable off node allocation period.

[linux-2.6-omap-h63xx.git] / mm / vmscan.c

diff --git a/mm/vmscan.c b/mm/vmscan.c
index f8b94ea6f72274e32304bcebd901defb184641bb..8760a4abfa1f8b7d11fd04e119563c409f49a07a 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1595,7 +1595,7 @@ int zone_reclaim_mode __read_mostly;
 /*
  * Mininum time between zone reclaim scans
  */
-#define ZONE_RECLAIM_INTERVAL 30*HZ
+int zone_reclaim_interval __read_mostly = 30*HZ;
 
 /*
  * Priority for ZONE_RECLAIM. This determines the fraction of pages
@@ -1617,7 +1617,7 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
        int node_id;
 
        if (time_before(jiffies,
-               zone->last_unsuccessful_zone_reclaim + ZONE_RECLAIM_INTERVAL))
+               zone->last_unsuccessful_zone_reclaim + zone_reclaim_interval))
                        return 0;
 
        if (!(gfp_mask & __GFP_WAIT) ||