On Mon, Apr 20, 2020 at 08:41:56PM +0000, Luis Chamberlain wrote: > Its already there. And yes, after my changes it is technically possible > to just re-use it directly. But this is complicated by a few things. One > is that at this point in time, asynchronous request_queue removal is > still possible, and so a race was exposed where a requeust_queue may be > lingering but its old device is gone. That race is fixed by reverting us > back to synchronous request_queue removal, therefore ensuring that the > debugfs dir exists so long as the device does. > > I can remove the debugfs_lookup() *after* we revert to synchronous > request_queue removal, or we just re-order the patches so that the > revert happens first. That should simplify this patch. Yes, please move the synchronous removal first instead of working around the current problems.
