On Sat, Oct 16, 2021 at 07:37:43PM -0600, Jens Axboe wrote: > We set BIO_TRACKED unconditionally when rq_qos_throttle() is called, even > though we may not even have an rq_qos handler. Only mark it as TRACKED if > it really is potentially tracked. > > This saves considerable time for the case where the bio isn't tracked: > > 2.64% -1.65% [kernel.vmlinux] [k] bio_endio > > Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>