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mm: remove unnecessary reclaimability check from NUMA balancing target 

NUMA balancing already checks the watermarks of the target node to
decide whether it's a suitable balancing target.  Whether the node is
reclaimable or not is irrelevant when we don't intend to reclaim.

Link: http://lkml.kernel.org/r/20170228214007.5621-5-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Jia He <hejianet@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2017-05-03 14:52:00 -07:00 committed by Linus Torvalds
parent 047d72c30e
commit 15038d0de9
1 changed files with 0 additions and 3 deletions
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3
mm/migrate.c
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@ -1722,9 +1722,6 @@ static bool migrate_balanced_pgdat(struct pglist_data *pgdat,
{
int z;
if (!pgdat_reclaimable(pgdat))
return false;
for (z = pgdat->nr_zones - 1; z >= 0; z--) {
struct zone *zone = pgdat->node_zones + z;