mm: vmscan: reclaim highmem zone if buffer_heads is over limit

We have been reclaimed highmem zone if buffer_heads is over limit but 6b4f779 ("mm: vmscan: invoke slab shrinkers from shrink_zone()") changed the behavior so it doesn't reclaim highmem zone although buffer_heads is over the limit. This patch restores the logic. Fixes: 6b4f779 ("mm: vmscan: invoke slab shrinkers from shrink_zone()") Signed-off-by: Minchan Kim <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
ddstreet · Apr 29, 2016 · 5c11c7f · 5c11c7f
1 parent a447300
commit 5c11c7f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/vmscan.c b/mm/vmscan.c
@@ -2553,7 +2553,7 @@ static bool shrink_zones(struct zonelist *zonelist, struct scan_control *sc)
 		sc->gfp_mask |= __GFP_HIGHMEM;
 
 	for_each_zone_zonelist_nodemask(zone, z, zonelist,
-					requested_highidx, sc->nodemask) {
+					gfp_zone(sc->gfp_mask), sc->nodemask) {
 		enum zone_type classzone_idx;
 
 		if (!populated_zone(zone))