diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index ba18d0c36b8..8f35d7d585c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -697,6 +697,11 @@ done: return nr_reclaimed; } +static inline int zone_is_near_oom(struct zone *zone) +{ + return zone->pages_scanned >= (zone->nr_active + zone->nr_inactive)*3; +} + /* * This moves pages from the active list to the inactive list. * @@ -732,6 +737,9 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, long distress; long swap_tendency; + if (zone_is_near_oom(zone)) + goto force_reclaim_mapped; + /* * `distress' is a measure of how much trouble we're having * reclaiming pages. 0 -> no problems. 100 -> great trouble. @@ -767,6 +775,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, * memory onto the inactive list. */ if (swap_tendency >= 100) +force_reclaim_mapped: reclaim_mapped = 1; } @@ -1161,7 +1170,7 @@ scan: if (zone->all_unreclaimable) continue; if (nr_slab == 0 && zone->pages_scanned >= - (zone->nr_active + zone->nr_inactive) * 4) + (zone->nr_active + zone->nr_inactive) * 6) zone->all_unreclaimable = 1; /* * If we've done a decent amount of scanning and |