d250a5f90e
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>
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
#ifndef __NET_GEN_STATS_H
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#define __NET_GEN_STATS_H
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#include <linux/gen_stats.h>
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#include <linux/socket.h>
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#include <linux/rtnetlink.h>
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#include <linux/pkt_sched.h>
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struct gnet_dump
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{
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spinlock_t * lock;
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struct sk_buff * skb;
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struct nlattr * tail;
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/* Backward compatability */
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int compat_tc_stats;
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int compat_xstats;
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void * xstats;
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int xstats_len;
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struct tc_stats tc_stats;
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};
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extern int gnet_stats_start_copy(struct sk_buff *skb, int type,
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spinlock_t *lock, struct gnet_dump *d);
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extern int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
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int tc_stats_type,int xstats_type,
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spinlock_t *lock, struct gnet_dump *d);
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extern int gnet_stats_copy_basic(struct gnet_dump *d,
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struct gnet_stats_basic_packed *b);
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extern int gnet_stats_copy_rate_est(struct gnet_dump *d,
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const struct gnet_stats_basic_packed *b,
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struct gnet_stats_rate_est *r);
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extern int gnet_stats_copy_queue(struct gnet_dump *d,
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struct gnet_stats_queue *q);
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extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
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extern int gnet_stats_finish_copy(struct gnet_dump *d);
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extern int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
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struct gnet_stats_rate_est *rate_est,
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spinlock_t *stats_lock, struct nlattr *opt);
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extern void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
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struct gnet_stats_rate_est *rate_est);
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extern int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
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struct gnet_stats_rate_est *rate_est,
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spinlock_t *stats_lock, struct nlattr *opt);
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extern bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
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const struct gnet_stats_rate_est *rate_est);
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#endif
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