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Date: Tue, 30 Sep 2014 01:02:52 -0400 (EDT) From: David Miller <davem@...emloft.net> To: john.fastabend@...il.com Cc: xiyou.wangcong@...il.com, jhs@...atatu.com, eric.dumazet@...il.com, netdev@...r.kernel.org Subject: Re: [net-next PATCH v3 1/4] net: sched: make bstats per cpu and estimator RCU safe From: John Fastabend <john.fastabend@...il.com> Date: Sun, 28 Sep 2014 11:52:56 -0700 > From: John Fastabend <john.fastabend@...il.com> > > In order to run qdisc's without locking statistics and estimators > need to be handled correctly. > > To resolve bstats make the statistics per cpu. And because this is > only needed for qdiscs that are running without locks which is not > the case for most qdiscs in the near future only create percpu > stats when qdiscs set the TCQ_F_CPUSTATS flag. > > Next because estimators use the bstats to calculate packets per > second and bytes per second the estimator code paths are updated > to use the per cpu statistics. > > Signed-off-by: John Fastabend <john.r.fastabend@...el.com> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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