mm: remove unnecessary reclaimability check from NUMA balancing target

NUMA balancing already checks the watermarks of the target node to decide whether it's a suitable balancing target. Whether the node is reclaimable or not is irrelevant when we don't intend to reclaim. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Johannes Weiner <[email protected]> Acked-by: Hillf Danton <[email protected]> Acked-by: Michal Hocko <[email protected]> Cc: Jia He <[email protected]> Cc: Mel Gorman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
olifre · May 3, 2017 · 15038d0 · 15038d0
1 parent 047d72c
commit 15038d0
Showing 1 changed file with 0 additions and 3 deletions.
diff --git a/mm/migrate.c b/mm/migrate.c
@@ -1722,9 +1722,6 @@ static bool migrate_balanced_pgdat(struct pglist_data *pgdat,
 {
 	int z;
 
-	if (!pgdat_reclaimable(pgdat))
-		return false;
-
 	for (z = pgdat->nr_zones - 1; z >= 0; z--) {
 		struct zone *zone = pgdat->node_zones + z;