mempolicy: remove redundant check in __mpol_equal()

[firefly-linux-kernel-4.4.55.git] / mm / vmscan.c

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6771ea70bfe7e399d96237a58d3860357aad4c46..665b090b6c727369368d08ee382161b92e075baa 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -514,7 +514,7 @@ static int __remove_mapping(struct address_space *mapping, struct page *page)
 
                freepage = mapping->a_ops->freepage;
 
-               __remove_from_page_cache(page);
+               __delete_from_page_cache(page);
                spin_unlock_irq(&mapping->tree_lock);
                mem_cgroup_uncharge_cache_page(page);
 
@@ -2397,7 +2397,6 @@ loop_again:
                 * cause too much scanning of the lower zones.
                 */
                for (i = 0; i <= end_zone; i++) {
-                       int compaction;
                        struct zone *zone = pgdat->node_zones + i;
                        int nr_slab;
 
@@ -2428,24 +2427,9 @@ loop_again:
                        sc.nr_reclaimed += reclaim_state->reclaimed_slab;
                        total_scanned += sc.nr_scanned;
 
-                       compaction = 0;
-                       if (order &&
-                           zone_watermark_ok(zone, 0,
-                                              high_wmark_pages(zone),
-                                             end_zone, 0) &&
-                           !zone_watermark_ok(zone, order,
-                                              high_wmark_pages(zone),
-                                              end_zone, 0)) {
-                               compact_zone_order(zone,
-                                                  order,
-                                                  sc.gfp_mask, false,
-                                                  COMPACT_MODE_KSWAPD);
-                               compaction = 1;
-                       }
-
                        if (zone->all_unreclaimable)
                                continue;
-                       if (!compaction && nr_slab == 0 &&
+                       if (nr_slab == 0 &&
                            !zone_reclaimable(zone))
                                zone->all_unreclaimable = 1;
                        /*