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authorEric Dumazet <eric.dumazet@gmail.com>2009-10-02 06:32:18 -0400
committerDavid S. Miller <davem@davemloft.net>2009-10-07 04:07:42 -0400
commitd250a5f90e53f5e150618186230795352d154c88 (patch)
tree1c95ec673ce613f346db300d3f5539f018066081 /net/sched/sch_drr.c
parent92d326f61b553250780786e9dd8609d4b32f8de7 (diff)
pkt_sched: gen_estimator: Dont report fake rate estimators
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 <jarkao2@gmail.com> > > 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 <eric.dumazet@gmail.com> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_drr.c')
-rw-r--r--net/sched/sch_drr.c2
1 files changed, 1 insertions, 1 deletions
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,
280 } 280 }
281 281
282 if (gnet_stats_copy_basic(d, &cl->bstats) < 0 || 282 if (gnet_stats_copy_basic(d, &cl->bstats) < 0 ||
283 gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 || 283 gnet_stats_copy_rate_est(d, &cl->bstats, &cl->rate_est) < 0 ||
284 gnet_stats_copy_queue(d, &cl->qdisc->qstats) < 0) 284 gnet_stats_copy_queue(d, &cl->qdisc->qstats) < 0)
285 return -1; 285 return -1;
286 286