diff -r 9cbbf9118c6c -r d645fdfb749f mercurial/localrepo.py
--- a/mercurial/localrepo.py	Sun Jul 16 17:38:39 2017 +0900
+++ b/mercurial/localrepo.py	Sat Jul 15 22:40:51 2017 +0200
@@ -489,7 +489,7 @@
                 # journal is covered by 'lock'
                 if repo._currentlock(repo._lockref) is None:
                     repo.ui.develwarn('write with no lock: "%s"' % path,
-                                      stacklevel=2)
+                                      stacklevel=2, config='check-locks')
             elif repo._currentlock(repo._wlockref) is None:
                 # rest of vfs files are covered by 'wlock'
                 #
@@ -498,7 +498,7 @@
                     if path.startswith(prefix):
                         return
                 repo.ui.develwarn('write with no wlock: "%s"' % path,
-                                  stacklevel=2)
+                                  stacklevel=2, config='check-locks')
             return ret
         return checkvfs