diff --git a/[refs] b/[refs] index 7c6962f478ed..c2284f493c83 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 6ddab3b9ebebc88bfdd8107c64f12d7e4480c559 +refs/heads/master: 408d85441cd5a9bd6bc851d677a10c605ed8db5f diff --git a/trunk/mm/vmscan.c b/trunk/mm/vmscan.c index 16180587fd7d..ba18d0c36b83 100644 --- a/trunk/mm/vmscan.c +++ b/trunk/mm/vmscan.c @@ -62,6 +62,8 @@ struct scan_control { int swap_cluster_max; int swappiness; + + int all_unreclaimable; }; /* @@ -925,6 +927,7 @@ static unsigned long shrink_zones(int priority, struct zone **zones, unsigned long nr_reclaimed = 0; int i; + sc->all_unreclaimable = 1; for (i = 0; zones[i] != NULL; i++) { struct zone *zone = zones[i]; @@ -941,6 +944,8 @@ static unsigned long shrink_zones(int priority, struct zone **zones, if (zone->all_unreclaimable && priority != DEF_PRIORITY) continue; /* Let kswapd poll it */ + sc->all_unreclaimable = 0; + nr_reclaimed += shrink_zone(priority, zone, sc); } return nr_reclaimed; @@ -1021,6 +1026,9 @@ unsigned long try_to_free_pages(struct zone **zones, gfp_t gfp_mask) if (sc.nr_scanned && priority < DEF_PRIORITY - 2) blk_congestion_wait(WRITE, HZ/10); } + /* top priority shrink_caches still had more to do? don't OOM, then */ + if (!sc.all_unreclaimable) + ret = 1; out: for (i = 0; zones[i] != 0; i++) { struct zone *zone = zones[i];