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authorEric Dumazet <edumazet@google.com>2013-11-15 08:57:26 -0800
committerDavid S. Miller <davem@davemloft.net>2013-11-15 21:01:52 -0500
commit65c5189a2b57b9aa1d89e4b79da39928257c9505 (patch)
treeaf0fb3f1d9aa0ae4c76e7a13463234e61eec0398
parent568508aa0724cc39bcf7d3d8001bd27a45609800 (diff)
downloadtalos-op-linux-65c5189a2b57b9aa1d89e4b79da39928257c9505.tar.gz
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pkt_sched: fq: warn users using defrate
Commit 7eec4174ff29 ("pkt_sched: fq: fix non TCP flows pacing") obsoleted TCA_FQ_FLOW_DEFAULT_RATE without notice for the users. Suggested by David Miller Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/uapi/linux/pkt_sched.h4
-rw-r--r--net/sched/sch_fq.c10
2 files changed, 5 insertions, 9 deletions
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 307f293477e8..885001b62c83 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -763,9 +763,7 @@ enum {
TCA_FQ_RATE_ENABLE, /* enable/disable rate limiting */
- TCA_FQ_FLOW_DEFAULT_RATE,/* for sockets with unspecified sk_rate,
- * use the following rate
- */
+ TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
TCA_FQ_FLOW_MAX_RATE, /* per flow max rate */
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index d4fa38e4af80..26906ab51c52 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -88,7 +88,6 @@ struct fq_sched_data {
struct fq_flow internal; /* for non classified or high prio packets */
u32 quantum;
u32 initial_quantum;
- u32 flow_default_rate;/* rate per flow : bytes per second */
u32 flow_max_rate; /* optional max rate per flow */
u32 flow_plimit; /* max packets per flow */
struct rb_root *fq_root;
@@ -650,7 +649,8 @@ static int fq_change(struct Qdisc *sch, struct nlattr *opt)
q->initial_quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
if (tb[TCA_FQ_FLOW_DEFAULT_RATE])
- q->flow_default_rate = nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);
+ pr_warn_ratelimited("sch_fq: defrate %u ignored.\n",
+ nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]));
if (tb[TCA_FQ_FLOW_MAX_RATE])
q->flow_max_rate = nla_get_u32(tb[TCA_FQ_FLOW_MAX_RATE]);
@@ -699,7 +699,6 @@ static int fq_init(struct Qdisc *sch, struct nlattr *opt)
q->flow_plimit = 100;
q->quantum = 2 * psched_mtu(qdisc_dev(sch));
q->initial_quantum = 10 * psched_mtu(qdisc_dev(sch));
- q->flow_default_rate = 0;
q->flow_max_rate = ~0U;
q->rate_enable = 1;
q->new_flows.first = NULL;
@@ -726,9 +725,8 @@ static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
if (opts == NULL)
goto nla_put_failure;
- /* TCA_FQ_FLOW_DEFAULT_RATE is not used anymore,
- * do not bother giving its value
- */
+ /* TCA_FQ_FLOW_DEFAULT_RATE is not used anymore */
+
if (nla_put_u32(skb, TCA_FQ_PLIMIT, sch->limit) ||
nla_put_u32(skb, TCA_FQ_FLOW_PLIMIT, q->flow_plimit) ||
nla_put_u32(skb, TCA_FQ_QUANTUM, q->quantum) ||
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