path_mountpoint  2708 fs/namei.c     	error = path_mountpoint(&nd, flags | LOOKUP_RCU, path);
path_mountpoint  2710 fs/namei.c     		error = path_mountpoint(&nd, flags, path);
path_mountpoint  2712 fs/namei.c     		error = path_mountpoint(&nd, flags | LOOKUP_REVAL, path);