From d250a5f90e53f5e150618186230795352d154c88 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 2 Oct 2009 10:32:18 +0000 Subject: pkt_sched: gen_estimator: Dont report fake rate estimators MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Jarek Poplawski a écrit : > > > Hmm... So you made me to do some "real" work here, and guess what?: > there is one serious checkpatch warning! ;-) Plus, this new parameter > should be added to the function description. Otherwise: > Signed-off-by: Jarek Poplawski > > Thanks, > Jarek P. > > PS: I guess full "Don't" would show we really mean it... Okay :) Here is the last round, before the night ! Thanks again [RFC] pkt_sched: gen_estimator: Don't report fake rate estimators We currently send TCA_STATS_RATE_EST elements to netlink users, even if no estimator is running. # tc -s -d qdisc qdisc pfifo_fast 0: dev eth0 root bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 112833764978 bytes 1495081739 pkt (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p requeues 0 User has no way to tell if the "rate 0bit 0pps" is a real estimation, or a fake one (because no estimator is active) After this patch, tc command output is : $ tc -s -d qdisc qdisc pfifo_fast 0: dev eth0 root bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 561075 bytes 1196 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 We add a parameter to gnet_stats_copy_rate_est() function so that it can use gen_estimator_active(bstats, r), as suggested by Jarek. This parameter can be NULL if check is not necessary, (htb for example has a mandatory rate estimator) Signed-off-by: Eric Dumazet Signed-off-by: Jarek Poplawski Signed-off-by: David S. Miller --- net/sched/act_api.c | 3 ++- net/sched/sch_api.c | 2 +- net/sched/sch_cbq.c | 2 +- net/sched/sch_drr.c | 2 +- net/sched/sch_hfsc.c | 2 +- net/sched/sch_htb.c | 2 +- 6 files changed, 7 insertions(+), 6 deletions(-) (limited to 'net/sched') diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 2dfb3e7a040d..ca2e1fd2bf69 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -618,7 +618,8 @@ int tcf_action_copy_stats(struct sk_buff *skb, struct tc_action *a, goto errout; if (gnet_stats_copy_basic(&d, &h->tcf_bstats) < 0 || - gnet_stats_copy_rate_est(&d, &h->tcf_rate_est) < 0 || + gnet_stats_copy_rate_est(&d, &h->tcf_bstats, + &h->tcf_rate_est) < 0 || gnet_stats_copy_queue(&d, &h->tcf_qstats) < 0) goto errout; diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 903e4188b6ca..1acfd29cc826 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -1179,7 +1179,7 @@ static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid, goto nla_put_failure; if (gnet_stats_copy_basic(&d, &q->bstats) < 0 || - gnet_stats_copy_rate_est(&d, &q->rate_est) < 0 || + gnet_stats_copy_rate_est(&d, &q->bstats, &q->rate_est) < 0 || gnet_stats_copy_queue(&d, &q->qstats) < 0) goto nla_put_failure; diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 5b132c473264..3846d65bc03e 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -1609,7 +1609,7 @@ cbq_dump_class_stats(struct Qdisc *sch, unsigned long arg, cl->xstats.undertime = cl->undertime - q->now; if (gnet_stats_copy_basic(d, &cl->bstats) < 0 || - gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 || + gnet_stats_copy_rate_est(d, &cl->bstats, &cl->rate_est) < 0 || gnet_stats_copy_queue(d, &cl->qstats) < 0) return -1; diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c index 5a888af7e5da..a65604f8f2b8 100644 --- a/net/sched/sch_drr.c +++ b/net/sched/sch_drr.c @@ -280,7 +280,7 @@ static int drr_dump_class_stats(struct Qdisc *sch, unsigned long arg, } if (gnet_stats_copy_basic(d, &cl->bstats) < 0 || - gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 || + gnet_stats_copy_rate_est(d, &cl->bstats, &cl->rate_est) < 0 || gnet_stats_copy_queue(d, &cl->qdisc->qstats) < 0) return -1; diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index 2c5c76be18f8..b38b39c60752 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -1375,7 +1375,7 @@ hfsc_dump_class_stats(struct Qdisc *sch, unsigned long arg, xstats.rtwork = cl->cl_cumul; if (gnet_stats_copy_basic(d, &cl->bstats) < 0 || - gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 || + gnet_stats_copy_rate_est(d, &cl->bstats, &cl->rate_est) < 0 || gnet_stats_copy_queue(d, &cl->qstats) < 0) return -1; diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 85acab9dc6fd..2e38d1abd830 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1105,7 +1105,7 @@ htb_dump_class_stats(struct Qdisc *sch, unsigned long arg, struct gnet_dump *d) cl->xstats.ctokens = cl->ctokens; if (gnet_stats_copy_basic(d, &cl->bstats) < 0 || - gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 || + gnet_stats_copy_rate_est(d, NULL, &cl->rate_est) < 0 || gnet_stats_copy_queue(d, &cl->qstats) < 0) return -1; -- cgit v1.2.3-59-g8ed1b