On Sat, Mar 03, 2018 at 12:16:34PM +0000, Robert N. M. Watson wrote: > (3) Want capability-based access to a persistent hierarchal namespace > full of files. This is well served by the current at(2) system calls > along with filesystems, although there are API gaps (e.g., a lack of > unlinkat(2) in FreeBSD). Why do you claim this ? We have unlinkat(2).