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Commit 22fecdf5 authored by Mel Gorman's avatar Mel Gorman Committed by Linus Torvalds
Browse files

mm, vmscan: remove redundant check in shrink_zones() 

As pointed out by Minchan Kim, shrink_zones() checks for populated zones
in a zonelist but a zonelist can never contain unpopulated zones.  While
it's not related to the node-lru series, it can be cleaned up now.

Link: http://lkml.kernel.org/r/1468853426-12858-2-git-send-email-mgorman@techsingularity.net


Signed-off-by: default avatarMel Gorman <mgorman@techsingularity.net>
Suggested-by: default avatarMinchan Kim <minchan@kernel.org>
Acked-by: default avatarMinchan Kim <minchan@kernel.org>
Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7ee36a14

mm/vmscan.c

+0 −3
Original line number Diff line number Diff line
@@ -2605,9 +2605,6 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc) 


	for_each_zone_zonelist_nodemask(zone, z, zonelist,

					sc->reclaim_idx, sc->nodemask) {

		if (!populated_zone(zone))

			continue;



		/*

		 * Take care memory controller reclaiming has small influence

		 * to global LRU.