On Fri, Jun 26, 2015 at 09:27:02AM -0400, Vivek Goyal wrote: > On Thu, Jun 25, 2015 at 05:38:53PM -0400, Tejun Heo wrote: > > [..] > > It's planned that the core stats will be moved to blkcg_gq, so we want > > to move the mechanism for keeping track of the stats of dead children > > from cfq to blkcg core. This patch adds blkg_[rw]stat->aux_cnt which > > are atomic64_t's keeping track of auxiliary counts which are excluded > > when reading local counts but included for recursive. > > Hi Tejun, > > So aux_cnt is atomic64_t as updation is not the hot path hence there is > not much value in keeping it as per cpu?
I'm not following. aux_cnt isn't per-cpu. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
