linux-kernel - [PATCH 3/3] balancenuma: set last

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Message-ID: <CAJd=RBD8VJJ75BHR9+KogGtOwaZf36Br9_ehj7oLCcCw9Qiuew@mail.gmail.com>
Date:	Tue, 27 Nov 2012 21:22:12 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Mel Gorman <mgorman@...e.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Hillf Danton <dhillf@...il.com>
Subject: [PATCH 3/3] balancenuma: set last_nid on tail page

Pass last_nid from head page to tail page.

Signed-off-by: Hillf Danton <dhillf@...il.com>
---

--- a/mm/huge_memory.c	Tue Nov 27 20:45:56 2012
+++ b/mm/huge_memory.c	Tue Nov 27 20:54:54 2012
@@ -1382,6 +1382,7 @@ static void __split_huge_page_refcount(s
 		page_tail->mapping = page->mapping;

 		page_tail->index = page->index + i;
+		page_xchg_last_nid(page_tail, page_last_nid(page));

 		BUG_ON(!PageAnon(page_tail));
 		BUG_ON(!PageUptodate(page_tail));
--
--
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