linux-kernel - [PATCH] mm:vmscan: clean up classzone

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Date:	Mon,  4 Apr 2016 08:46:25 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Minchan Kim <minchan@...nel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.com>
Subject: [PATCH] mm:vmscan: clean up classzone_idx

[1] removed classzone_idx so we don't need code related to it.
This patch cleans it up.

[1] mm, oom: rework oom detection

Cc: Johannes Weiner <hannes@...xchg.org>
Cc: Michal Hocko <mhocko@...e.com>
Signed-off-by: Minchan Kim <minchan@...nel.org>
---
 mm/vmscan.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index d84efa03c8a8..6e67de2a61ed 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2551,16 +2551,8 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc)
 
 	for_each_zone_zonelist_nodemask(zone, z, zonelist,
 					gfp_zone(sc->gfp_mask), sc->nodemask) {
-		enum zone_type classzone_idx;
-
 		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