From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Wed, 11 Sep 2013 21:22:08 +0000 (-0700)
Subject: mm: migrate: remove VM_HUGETLB from vma flag check in vma_migratable()
X-Git-Tag: upstream/snapshot3+hdmi~4342^2~205
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=71ea2efb1e936a127690a0a540b3a6162f95e48a;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

mm: migrate: remove VM_HUGETLB from vma flag check in vma_migratable()

Enable hugepage migration from migrate_pages(2), move_pages(2), and
mbind(2).

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Rik van Riel <riel@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index b2f8977..da6716b 100644
--- a/include/linux/mempolicy.h
+++ b/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