From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eric Dumazet , "David S. Miller" Subject: [PATCH 3.12 26/83] pkt_sched: fq: warn users using defrate Date: Fri, 6 Dec 2013 13:51:16 -0800 Message-Id: <20131206214642.506130818@linuxfoundation.org> In-Reply-To: <20131206214640.002320724@linuxfoundation.org> References: <20131206214640.002320724@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eric Dumazet [ Upstream commit 65c5189a2b57b9aa1d89e4b79da39928257c9505 ] 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 Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/pkt_sched.h | 4 +--- net/sched/sch_fq.c | 10 ++++------ 2 files changed, 5 insertions(+), 9 deletions(-) --- a/include/uapi/linux/pkt_sched.h +++ b/include/uapi/linux/pkt_sched.h @@ -759,9 +759,7 @@ 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 */ --- 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; @@ -649,7 +648,8 @@ static int fq_change(struct Qdisc *sch, 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]); @@ -698,7 +698,6 @@ static int fq_init(struct Qdisc *sch, st 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; @@ -725,9 +724,8 @@ static int fq_dump(struct Qdisc *sch, st 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) ||