From: Andrew Morton <akpm@linux-foundation.org>

Use the local

Cc: Nick Piggin <npiggin@suse.de>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mlock.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN mm/mlock.c~mmap-handle-mlocked-pages-during-map-remap-unmap-cleanup mm/mlock.c
--- a/mm/mlock.c~mmap-handle-mlocked-pages-during-map-remap-unmap-cleanup
+++ a/mm/mlock.c
@@ -274,7 +274,7 @@ static void __munlock_vma_pages_range(st
 	};
 
 	VM_BUG_ON(start & ~PAGE_MASK || end & ~PAGE_MASK);
-	VM_BUG_ON((!rwsem_is_locked(&vma->vm_mm->mmap_sem)) &&
+	VM_BUG_ON((!rwsem_is_locked(&mm->mmap_sem)) &&
 		  (atomic_read(&mm->mm_users) != 0));
 	VM_BUG_ON(start < vma->vm_start);
 	VM_BUG_ON(end > vma->vm_end);
_