The patch titled
Subject: mm: remove unnecessary reclaimability check from NUMA balancing target
has been added to the -mm tree. Its filename is
mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target.patch
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------------------------------------------------------
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: 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@xxxxxxxxxxx
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Jia He <hejianet@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN mm/migrate.c~mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target mm/migrate.c
--- a/mm/migrate.c~mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target
+++ a/mm/migrate.c
@@ -1718,9 +1718,6 @@ static bool migrate_balanced_pgdat(struc
{
int z;
- if (!pgdat_reclaimable(pgdat))
- return false;
-
for (z = pgdat->nr_zones - 1; z >= 0; z--) {
struct zone *zone = pgdat->node_zones + z;
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
mm-fix-100%-cpu-kswapd-busyloop-on-unreclaimable-nodes.patch
mm-fix-check-for-reclaimable-pages-in-pf_memalloc-reclaim-throttling.patch
mm-remove-seemingly-spurious-reclaimability-check-from-laptop_mode-gating.patch
mm-remove-unnecessary-reclaimability-check-from-numa-balancing-target.patch
mm-dont-avoid-high-priority-reclaim-on-unreclaimable-nodes.patch
mm-dont-avoid-high-priority-reclaim-on-memcg-limit-reclaim.patch
mm-delete-nr_pages_scanned-and-pgdat_reclaimable.patch
revert-mm-vmscan-account-for-skipped-pages-as-a-partial-scan.patch
mm-remove-unnecessary-back-off-function-when-retrying-page-reclaim.patch
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