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From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
	Michal Hocko <mhocko@suse.cz>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Hugh Dickins <hughd@google.com>,
	Davidlohr Bueso <davidlohr.bueso@hp.com>,
	David Gibson <david@gibson.dropbear.id.au>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Joonsoo Kim <js1304@gmail.com>,
	Wanpeng Li <liwanp@linux.vnet.ibm.com>,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
	Hillf Danton <dhillf@gmail.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: [PATCH] mm, hugetlb: correct missing private flag clearing
Date: Mon, 30 Sep 2013 16:59:44 +0900	[thread overview]
Message-ID: <1380527985-18499-1-git-send-email-iamjoonsoo.kim@lge.com> (raw)

We should clear the page's private flag when returing the page to
the page allocator or the hugepage pool. This patch fixes it.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
---
Hello, Andrew.

I sent the new version of commit ('07443a8') before you did pull request,
but it isn't included. It may be losted :)
So I send this fix. IMO, this is good for v3.12.

Thanks.

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index b49579c..691f226 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -653,6 +653,7 @@ static void free_huge_page(struct page *page)
 	BUG_ON(page_count(page));
 	BUG_ON(page_mapcount(page));
 	restore_reserve = PagePrivate(page);
+	ClearPagePrivate(page);
 
 	spin_lock(&hugetlb_lock);
 	hugetlb_cgroup_uncharge_page(hstate_index(h),
-- 
1.7.9.5

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             reply	other threads:[~2013-09-30  7:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-30  7:59 Joonsoo Kim [this message]
2013-09-30 21:35 ` Andrew Morton
2013-10-01  1:16   ` Joonsoo Kim

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