[PATCH 3/3] mm: call vma_adjust_trans_huge() only for thp-enabled vma

[Naoya Horiguchi]

vma_adjust() is called also for vma(VM_HUGETLB) and it could happen that
we happen to try to split hugetlbfs hugepage. So exclude the possibility.

Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
---
 mm/mmap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git next-20140220.orig/mm/mmap.c next-20140220/mm/mmap.c
index f53397806d7f..45a9c0d51e3f 100644
--- next-20140220.orig/mm/mmap.c
+++ next-20140220/mm/mmap.c
@@ -772,7 +772,8 @@ again:			remove_next = 1 + (end > next->vm_end);
 		}
 	}
 
-	vma_adjust_trans_huge(vma, start, end, adjust_next);
+	if (transparent_hugepage_enabled(vma))
+		vma_adjust_trans_huge(vma, start, end, adjust_next);
 
 	anon_vma = vma->anon_vma;
 	if (!anon_vma && adjust_next)
-- 
1.8.5.3

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