linux-kernel - [PATCH 4/8] Preserve original node for transparent huge page copies

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Date:	Tue, 22 Feb 2011 17:51:58 -0800
From:	Andi Kleen <andi@...stfloor.org>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Andi Kleen <ak@...ux.intel.com>, aarcange@...hat.com
Subject: [PATCH 4/8] Preserve original node for transparent huge page copies

From: Andi Kleen <ak@...ux.intel.com>

This makes a difference for LOCAL policy, where the node cannot
be determined from the policy itself, but has to be gotten
from the original page.

Cc: aarcange@...hat.com
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 mm/huge_memory.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 73ecca5..00a5c39 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -799,8 +799,8 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
 	}
 
 	for (i = 0; i < HPAGE_PMD_NR; i++) {
-		pages[i] = alloc_page_vma(GFP_HIGHUSER_MOVABLE,
-					  vma, address);
+		pages[i] = alloc_page_vma_node(GFP_HIGHUSER_MOVABLE,
+					       vma, address, page_to_nid(page));
 		if (unlikely(!pages[i] ||
 			     mem_cgroup_newpage_charge(pages[i], mm,
 						       GFP_KERNEL))) {
-- 
1.7.4

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