diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 29 |
1 files changed, 1 insertions, 28 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 8fde2fc223d..b93968b71dc 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2617,7 +2617,6 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order, int *classzone_idx) { bool pgdat_is_balanced = false; - struct zone *unbalanced_zone; int i; int end_zone = 0; /* Inclusive. 0 = ZONE_DMA */ unsigned long total_scanned; @@ -2648,9 +2647,6 @@ loop_again: do { unsigned long lru_pages = 0; - int has_under_min_watermark_zone = 0; - - unbalanced_zone = NULL; /* * Scan in the highmem->dma direction for the highest @@ -2790,17 +2786,7 @@ loop_again: continue; } - if (!zone_balanced(zone, testorder, 0, end_zone)) { - unbalanced_zone = zone; - /* - * We are still under min water mark. This - * means that we have a GFP_ATOMIC allocation - * failure risk. Hurry up! - */ - if (!zone_watermark_ok_safe(zone, order, - min_wmark_pages(zone), end_zone, 0)) - has_under_min_watermark_zone = 1; - } else { + if (zone_balanced(zone, testorder, 0, end_zone)) /* * If a zone reaches its high watermark, * consider it to be no longer congested. It's @@ -2809,8 +2795,6 @@ loop_again: * speculatively avoid congestion waits */ zone_clear_flag(zone, ZONE_CONGESTED); - } - } /* @@ -2828,17 +2812,6 @@ loop_again: } /* - * OK, kswapd is getting into trouble. Take a nap, then take - * another pass across the zones. - */ - if (total_scanned && (sc.priority < DEF_PRIORITY - 2)) { - if (has_under_min_watermark_zone) - count_vm_event(KSWAPD_SKIP_CONGESTION_WAIT); - else if (unbalanced_zone) - wait_iff_congested(unbalanced_zone, BLK_RW_ASYNC, HZ/10); - } - - /* * We do this so kswapd doesn't build up large priorities for * example when it is freeing in parallel with allocators. It * matches the direct reclaim path behaviour in terms of impact |