+ vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2.patch added to -mm tree

+ vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2.patch added to -mm tree

[akpm]

The patch titled
     vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2
has been added to the -mm tree.  Its filename is
     vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2.patch

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------------------------------------------------------
Subject: vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2
From: Minchan Kim <minchan.kim@gmail.com>

   * remove inline - suggested by Andrew
   * add function desription - suggeseted by Adnrew

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: M. Vefa Bicakci <bicave@superonline.com>
Cc: <stable@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff -puN mm/vmscan.c~vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2 mm/vmscan.c
--- a/mm/vmscan.c~vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2
+++ a/mm/vmscan.c
@@ -1829,12 +1829,17 @@ static void shrink_zones(int priority, s
 	}
 }
 
-static inline bool zone_reclaimable(struct zone *zone)
+static bool zone_reclaimable(struct zone *zone)
 {
 	return zone->pages_scanned < zone_reclaimable_pages(zone) * 6;
 }
 
-static inline bool all_unreclaimable(struct zonelist *zonelist,
+/*
+ * As hibernation is going on, kswapd is freezed so that it can't mark
+ * the zone into all_unreclaimable. It can't handle OOM during hibernation.
+ * So let's check zone's unreclaimable in direct reclaim as well as kswapd.
+ */
+static bool all_unreclaimable(struct zonelist *zonelist,
 		struct scan_control *sc)
 {
 	struct zoneref *z;
_

Patches currently in -mm which might be from minchan.kim@gmail.com are

oom-always-return-a-badness-score-of-non-zero-for-eligible-tasks.patch
vmscan-check-all_unreclaimable-in-direct-reclaim-path.patch
vmscan-check-all_unreclaimable-in-direct-reclaim-path-v2.patch
mm-vmap-area-cache.patch
mm-compaction-fix-compactpagefailed-counting.patch
vmscan-prevent-background-aging-of-anon-page-in-no-swap-system.patch