ovl_set_opaque    314 fs/overlayfs/dir.c 		ovl_set_opaque(dentry, newdentry);
ovl_set_opaque    372 fs/overlayfs/dir.c 	err = ovl_set_opaque(dentry, opaquedir);
ovl_set_opaque    500 fs/overlayfs/dir.c 		err = ovl_set_opaque(dentry, newdentry);