On Fri, Oct 30, 2020 at 02:33:11PM -0600, Jens Axboe wrote: > On 10/30/20 12:49 PM, Al Viro wrote: > > On Fri, Oct 30, 2020 at 12:46:26PM -0600, Jens Axboe wrote: > > > >> See other reply, it's being posted soon, just haven't gotten there yet > >> and it wasn't ready. > >> > >> It's a prep patch so we can call do_renameat2 and pass in a filename > >> instead. The intent is not to have any functional changes in that prep > >> patch. But once we can pass in filenames instead of user pointers, it's > >> usable from io_uring. > > > > You do realize that pathname resolution is *NOT* offloadable to helper > > threads, I hope... > > How so? If we have all the necessary context assigned, what's preventing > it from working? Semantics of /proc/self/..., for starters (and things like /proc/mounts, etc. *do* pass through that, /dev/stdin included)
