From: Minchan Kim <minchan@xxxxxxxxxx>
Subject: mm: vmscan: reclaim highmem zone if buffer_heads is over limit
We have been reclaimed highmem zone if buffer_heads is over limit but
6b4f7799c6a5 ("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: 6b4f7799c6a5 ("mm: vmscan: invoke slab shrinkers from shrink_zone()")
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/vmscan.c~mm-vmscan-reclaim-highmem-zone-if-buffer_heads-is-over-limit mm/vmscan.c
--- a/mm/vmscan.c~mm-vmscan-reclaim-highmem-zone-if-buffer_heads-is-over-limit
+++ a/mm/vmscan.c
@@ -2553,7 +2553,7 @@ static bool shrink_zones(struct zonelist
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))
_
--
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