On 2/5/19 6:01 PM, Al Viro wrote: > On Tue, Feb 05, 2019 at 05:27:29PM -0700, Jens Axboe wrote: > >> This should be better, passes some basic testing, too: >> >> http://git.kernel.dk/cgit/linux-block/commit/?h=io_uring&id=01a93aa784319a02ccfa6523371b93401c9e0073 >> >> Verified that we're grabbing the right refs, and don't hold any >> ourselves. For the file registration, forbid registration of the >> io_uring fd, as that is pointless and will introduce a loop regardless >> of fd passing. > > *shrug* > > So pass it to AF_UNIX socket and register _that_ - does't change the > underlying problem. Maybe I'm being dense here, but it's an f_op match. Should catch a passed fd as well, correct? With that, how can there be a loop? -- Jens Axboe
