Messages in this thread Patch in this message | | | From | Minchan Kim <> | Subject | [PATCH] mm: vmscan: reclaim highmem zone if buffer_heads is over limit | Date | Fri, 1 Apr 2016 17:00:58 +0900 |
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We have been reclaimed highmem zone if buffer_heads is over limit but [1] changed the behavior so it doesn't reclaim highmem zone although buffer_heads is over the limit. This patch restores the logic.
As well, [2] removed classzone_idx so we don't need code related to it. This patch cleans it up.
[1] commit 6b4f7799c6a5 ("mm: vmscan: invoke slab shrinkers from shrink_zone()") [2] commit 5acbd3bfc93b ("mm, oom: rework oom detection")
Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by: Minchan Kim <minchan@kernel.org> --- mm/vmscan.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c index c7696a2e11c7..6e67de2a61ed 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2550,17 +2550,9 @@ static void 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) { - enum zone_type classzone_idx; - + gfp_zone(sc->gfp_mask), sc->nodemask) { if (!populated_zone(zone)) continue; - - classzone_idx = requested_highidx; - while (!populated_zone(zone->zone_pgdat->node_zones + - classzone_idx)) - classzone_idx--; - /* * Take care memory controller reclaiming has small influence * to global LRU. -- 1.9.1
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