Tejun Heo <[email protected]> writes: > This is necessary for making async cfq_cgroups per-cfq_group instead > of per-cfq_data. While this change makes cfq_get_queue() perform RCU > locking and look up cfq_group even when it reuses async queue, the > extra overhead is extremely unlikely to be noticeable given that this > is already sitting behind cic->cfqq[] cache and the overall cost of > cfq operation. > > Signed-off-by: Tejun Heo <[email protected]> > Cc: Vivek Goyal <[email protected]> > Cc: Arianna Avanzini <[email protected]>
Reviewed-by: Jeff Moyer <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
