[PATCH 5/8] vmscan: Remove dead code in shrink_inactive_list()

[Mel Gorman]

From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>

After synchrounous lumpy reclaim, the page_list is guaranteed to not
have active pages as page activation in shrink_page_list() disables lumpy
reclaim. Remove the dead code.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx>
---
 mm/vmscan.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index b352b92..00075f3 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1332,7 +1332,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct zone *zone,
 	unsigned long nr_scanned;
 	unsigned long nr_reclaimed = 0;
 	unsigned long nr_taken;
-	unsigned long nr_active;
 	unsigned long nr_anon;
 	unsigned long nr_file;
 
@@ -1387,13 +1386,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct zone *zone,
 
 	/* Check if we should syncronously wait for writeback */
 	if (should_reclaim_stall(nr_taken, nr_reclaimed, priority, sc)) {
-		/*
-		 * The attempt at page out may have made some
-		 * of the pages active, mark them inactive again.
-		 */
-		nr_active = clear_active_flags(&page_list, NULL);
-		count_vm_events(PGDEACTIVATE, nr_active);
-
 		set_lumpy_reclaim_mode(priority, sc, true);
 		nr_reclaimed += shrink_page_list(&page_list, sc);
 	}
-- 
1.7.1

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