mm/vmscan.c: minor cleanup for kswapd

Local variable total_scanned is no longer used.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 669fba3..e03a00b 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2619,7 +2619,6 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
        bool pgdat_is_balanced = false;
        int i;
        int end_zone = 0;       /* Inclusive.  0 = ZONE_DMA */
-       unsigned long total_scanned;
        struct reclaim_state *reclaim_state = current->reclaim_state;
        unsigned long nr_soft_reclaimed;
        unsigned long nr_soft_scanned;
@@ -2639,7 +2638,6 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
                .gfp_mask = sc.gfp_mask,
        };
 loop_again:
-       total_scanned = 0;
        sc.priority = DEF_PRIORITY;
        sc.nr_reclaimed = 0;
        sc.may_writepage = !laptop_mode;
@@ -2730,7 +2728,6 @@ loop_again:
                                                        order, sc.gfp_mask,
                                                        &nr_soft_scanned);
                        sc.nr_reclaimed += nr_soft_reclaimed;
-                       total_scanned += nr_soft_scanned;
 
                        /*
                         * We put equal pressure on every zone, unless
@@ -2765,7 +2762,6 @@ loop_again:
                                reclaim_state->reclaimed_slab = 0;
                                nr_slab = shrink_slab(&shrink, sc.nr_scanned, lru_pages);
                                sc.nr_reclaimed += reclaim_state->reclaimed_slab;
-                               total_scanned += sc.nr_scanned;
 
                                if (nr_slab == 0 && !zone_reclaimable(zone))
                                        zone->all_unreclaimable = 1;