On Wed 07-09-22 12:20:09, Keith Busch wrote: > On Wed, Sep 07, 2022 at 06:41:50PM +0200, Jan Kara wrote: > > On Wed 07-09-22 08:13:40, Keith Busch wrote: > > > > > > I'm not sure about this part. We've already decremented, so the freed bit is > > > accounted for against the batch. Returning true here may double-count the freed > > > bit, right? > > > > Yes, we may wake up waiters unnecessarily frequently. But that's a > > performance issue at worst and only if it happens frequently. So I don't > > think it matters in practice (famous last words ;). > > Ok, let's go with that. Do you want to send the patch? I have a follow-up fix > for batched tagging that depends on this. I think Kuai will do that. But if not, I can certainly take his patch and resubmit it with the fixup. Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR