On Wed, May 19, 2021 at 12:48:59AM +0000, Al Viro wrote: > ... and leave the rename_lock/mount_lock handling in prepend_path() > itself ... > + if (!IS_ERR_OR_NULL(mnt_ns) && !is_anon_ns(mnt_ns)) > + return 1; // absolute root > + else > + return 2; // detached or not attached yet Would it be slightly better to read if (IS_ERR_OR_NULL(mnt_ns) || is_anon_ns(mnt_ns)) return 2; // detached or not attached yet else return 1; // absolute root ? Oh, I have noticed that it's in the original piece of code (perhaps separate change if we ever need it?). -- With Best Regards, Andy Shevchenko