[PATCH 17/25] mm, vmscan: Check if cpusets are enabled during direct reclaim

[Mel Gorman]

Direct reclaim obeys cpusets but misses the cpusets_enabled() check.
The overhead is unlikely to be measurable in the direct reclaim
path which is expensive but there is no harm is doing it.

Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
---
 mm/vmscan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 140aeefdebe1..e1fbd89ab750 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2522,7 +2522,7 @@ static bool shrink_zones(struct zonelist *zonelist, struct scan_control *sc,
 		 * to global LRU.
 		 */
 		if (global_reclaim(sc)) {
-			if (!cpuset_zone_allowed(zone,
+			if (cpusets_enabled() && !cpuset_zone_allowed(zone,
 						 GFP_KERNEL | __GFP_HARDWALL))
 				continue;
 
-- 
2.3.5

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