diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 313381cc88ac..1e4ee1acd2b7 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2492,6 +2492,19 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, } #endif +static bool zone_balanced(struct zone *zone, int order, + unsigned long balance_gap, int classzone_idx) +{ + if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone) + + balance_gap, classzone_idx, 0)) + return false; + + if (COMPACTION_BUILD && order && !compaction_suitable(zone, order)) + return false; + + return true; +} + /* * pgdat_balanced is used when checking if a node is balanced for high-order * allocations. Only zones that meet watermarks and are in a zone allowed @@ -2551,8 +2564,7 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining, continue; } - if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone), - i, 0)) + if (!zone_balanced(zone, order, 0, i)) all_zones_ok = false; else balanced += zone->present_pages; @@ -2655,8 +2667,7 @@ loop_again: shrink_active_list(SWAP_CLUSTER_MAX, zone, &sc, priority, 0); - if (!zone_watermark_ok_safe(zone, order, - high_wmark_pages(zone), 0, 0)) { + if (!zone_balanced(zone, order, 0, 0)) { end_zone = i; break; } else { @@ -2717,9 +2728,8 @@ loop_again: (zone->present_pages + KSWAPD_ZONE_BALANCE_GAP_RATIO-1) / KSWAPD_ZONE_BALANCE_GAP_RATIO); - if (!zone_watermark_ok_safe(zone, order, - high_wmark_pages(zone) + balance_gap, - end_zone, 0)) { + if (!zone_balanced(zone, order, + balance_gap, end_zone)) { shrink_zone(priority, zone, &sc); reclaim_state->reclaimed_slab = 0; @@ -2746,8 +2756,7 @@ loop_again: continue; } - if (!zone_watermark_ok_safe(zone, order, - high_wmark_pages(zone), end_zone, 0)) { + if (!zone_balanced(zone, order, 0, end_zone)) { all_zones_ok = 0; /* * We are still under min water mark. This |