Am 17.10.2016 um 10:49 hat Alberto Garcia geschrieben:
> On Fri 14 Oct 2016 04:11:46 PM CEST, Paolo Bonzini wrote:
> > Here is next_throttle_token:
> >
> > - ThrottleGroup *tg = container_of(blk_bs(blk)->throttle_state,
> > - ThrottleGroup, ts);
> > + BlockBackendPublic *blkp = blk_get_public(blk);
> > + ThrottleGroup *tg = container_of(blkp->throttle_state, ThrottleGroup,
> > ts);
> > BlockBackend *token, *start;
> >
> > start = token = tg->tokens[is_write];
> >
> > /* get next bs round in round robin style */
> > token = throttle_group_next_blk(token);
> > - while (token != start && !blk_bs(token)->pending_reqs[is_write]) {
> > + while (token != start && !blkp->pending_reqs[is_write]) {
> > token = throttle_group_next_blk(token);
> > }
> >
> >
> > blkp isn't updated every time token is updated.
>
> You're right, I'll write a patch. I'd also try to check why this was not
> detected by any iotest.
>
> Thanks!
Thanks a lot, Berto! (Both for fixing my bug and thinking of test cases)
Kevin
