From: "Liam R. Howlett" <Liam.Howlett@oracle.com>

Add the reset of the ref count in vma_lock_init().  This is needed if
the vma memory is not zeroed on allocation.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
 tools/testing/vma/vma_internal.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h
index 3639aa8dd2b06ebe5b9cfcfe6669994fd38c482d..2f1c586400cfd65413d2ff82199590b43796b18c 100644
--- a/tools/testing/vma/vma_internal.h
+++ b/tools/testing/vma/vma_internal.h
@@ -1418,8 +1418,8 @@ static inline void ksm_exit(struct mm_struct *mm)
 
 static inline void vma_lock_init(struct vm_area_struct *vma, bool reset_refcnt)
 {
-	(void)vma;
-	(void)reset_refcnt;
+	if (reset_refcnt)
+		refcount_set(&vma->vm_refcnt, 0);
 }
 
 static inline void vma_numab_state_init(struct vm_area_struct *vma)

-- 
2.51.0