linux-kernel - [PATCH 6/8] migrate: remove VM_HUGETLB from vma flag check in vma

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Message-Id: <1374728103-17468-7-git-send-email-n-horiguchi@ah.jp.nec.com>
Date:	Thu, 25 Jul 2013 00:55:01 -0400
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org
Cc:	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andi Kleen <andi@...stfloor.org>,
	Hillf Danton <dhillf@...il.com>, Michal Hocko <mhocko@...e.cz>,
	Rik van Riel <riel@...hat.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org,
	Naoya Horiguchi <nao.horiguchi@...il.com>
Subject: [PATCH 6/8] migrate: remove VM_HUGETLB from vma flag check in vma_migratable()

This patch enables hugepage migration from migrate_pages(2),
move_pages(2), and mbind(2).

Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Acked-by: Hillf Danton <dhillf@...il.com>
Acked-by: Andi Kleen <ak@...ux.intel.com>
Reviewed-by: Wanpeng Li <liwanp@...ux.vnet.ibm.com>
---
 include/linux/mempolicy.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git v3.11-rc1.orig/include/linux/mempolicy.h v3.11-rc1/include/linux/mempolicy.h
index 0d7df39..2e475b5 100644
--- v3.11-rc1.orig/include/linux/mempolicy.h
+++ v3.11-rc1/include/linux/mempolicy.h
@@ -173,7 +173,7 @@ extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
 /* Check if a vma is migratable */
 static inline int vma_migratable(struct vm_area_struct *vma)
 {
-	if (vma->vm_flags & (VM_IO | VM_HUGETLB | VM_PFNMAP))
+	if (vma->vm_flags & (VM_IO | VM_PFNMAP))
 		return 0;
 	/*
 	 * Migration allocates pages in the highest zone. If we cannot
-- 
1.8.3.1

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