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From: js1304@gmail.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>,
	Vlastimil Babka <vbabka@suse.cz>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Minchan Kim <minchan@kernel.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: [PATCH 1/2] mm/page_alloc: fix wrong initialization when sysctl_min_unmapped_ratio changes
Date: Tue,  9 Aug 2016 15:30:47 +0900	[thread overview]
Message-ID: <1470724248-26780-1-git-send-email-iamjoonsoo.kim@lge.com> (raw)

From: Joonsoo Kim <iamjoonsoo.kim@lge.com>

Before resetting min_unmapped_pages, we need to initialize
min_unmapped_pages rather than min_slab_pages.

Fixes: a5f5f91da6 (mm: convert zone_reclaim to node_reclaim)
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index afdb7f8..555b609 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6894,7 +6894,7 @@ int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write,
 		return rc;
 
 	for_each_online_pgdat(pgdat)
-		pgdat->min_slab_pages = 0;
+		pgdat->min_unmapped_pages = 0;
 
 	for_each_zone(zone)
 		zone->zone_pgdat->min_unmapped_pages += (zone->managed_pages *
-- 
1.9.1

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             reply	other threads:[~2016-08-09  6:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-09  6:30 js1304 [this message]
2016-08-09  6:30 ` [PATCH 2/2] mm/page_alloc: recalculate some of node threshold when on/offline memory js1304
2016-08-09  7:34   ` Mel Gorman
2016-08-09  7:26 ` [PATCH 1/2] mm/page_alloc: fix wrong initialization when sysctl_min_unmapped_ratio changes Mel Gorman

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