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-rw-r--r--target/linux/generic/patches-3.3/046-fq_codel-qdisc-backlog.patch132
1 files changed, 0 insertions, 132 deletions
diff --git a/target/linux/generic/patches-3.3/046-fq_codel-qdisc-backlog.patch b/target/linux/generic/patches-3.3/046-fq_codel-qdisc-backlog.patch
deleted file mode 100644
index f9bcbbd08f..0000000000
--- a/target/linux/generic/patches-3.3/046-fq_codel-qdisc-backlog.patch
+++ /dev/null
@@ -1,132 +0,0 @@
-From 7bd90773f89001ea4960ed47676b550137f3facb Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 16 May 2012 04:39:09 +0000
-Subject: [PATCH] fq_codel: should use qdisc backlog as threshold
-
-commit 865ec5523dadbedefbc5710a68969f686a28d928 upstream.
-
-codel_should_drop() logic allows a packet being not dropped if queue
-size is under max packet size.
-
-In fq_codel, we have two possible backlogs : The qdisc global one, and
-the flow local one.
-
-The meaningful one for codel_should_drop() should be the global backlog,
-not the per flow one, so that thin flows can have a non zero drop/mark
-probability.
-
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Cc: Dave Taht <dave.taht@bufferbloat.net>
-Cc: Kathleen Nichols <nichols@pollere.com>
-Cc: Van Jacobson <van@pollere.net>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- include/net/codel.h | 15 +++++++--------
- net/sched/sch_codel.c | 4 ++--
- net/sched/sch_fq_codel.c | 5 +++--
- 3 files changed, 12 insertions(+), 12 deletions(-)
-
---- a/include/net/codel.h
-+++ b/include/net/codel.h
-@@ -205,7 +205,7 @@ static codel_time_t codel_control_law(co
-
-
- static bool codel_should_drop(const struct sk_buff *skb,
-- unsigned int *backlog,
-+ struct Qdisc *sch,
- struct codel_vars *vars,
- struct codel_params *params,
- struct codel_stats *stats,
-@@ -219,13 +219,13 @@ static bool codel_should_drop(const stru
- }
-
- vars->ldelay = now - codel_get_enqueue_time(skb);
-- *backlog -= qdisc_pkt_len(skb);
-+ sch->qstats.backlog -= qdisc_pkt_len(skb);
-
- if (unlikely(qdisc_pkt_len(skb) > stats->maxpacket))
- stats->maxpacket = qdisc_pkt_len(skb);
-
- if (codel_time_before(vars->ldelay, params->target) ||
-- *backlog <= stats->maxpacket) {
-+ sch->qstats.backlog <= stats->maxpacket) {
- /* went below - stay below for at least interval */
- vars->first_above_time = 0;
- return false;
-@@ -249,8 +249,7 @@ static struct sk_buff *codel_dequeue(str
- struct codel_params *params,
- struct codel_vars *vars,
- struct codel_stats *stats,
-- codel_skb_dequeue_t dequeue_func,
-- u32 *backlog)
-+ codel_skb_dequeue_t dequeue_func)
- {
- struct sk_buff *skb = dequeue_func(vars, sch);
- codel_time_t now;
-@@ -261,7 +260,7 @@ static struct sk_buff *codel_dequeue(str
- return skb;
- }
- now = codel_get_time();
-- drop = codel_should_drop(skb, backlog, vars, params, stats, now);
-+ drop = codel_should_drop(skb, sch, vars, params, stats, now);
- if (vars->dropping) {
- if (!drop) {
- /* sojourn time below target - leave dropping state */
-@@ -292,7 +291,7 @@ static struct sk_buff *codel_dequeue(str
- qdisc_drop(skb, sch);
- stats->drop_count++;
- skb = dequeue_func(vars, sch);
-- if (!codel_should_drop(skb, backlog,
-+ if (!codel_should_drop(skb, sch,
- vars, params, stats, now)) {
- /* leave dropping state */
- vars->dropping = false;
-@@ -313,7 +312,7 @@ static struct sk_buff *codel_dequeue(str
- stats->drop_count++;
-
- skb = dequeue_func(vars, sch);
-- drop = codel_should_drop(skb, backlog, vars, params,
-+ drop = codel_should_drop(skb, sch, vars, params,
- stats, now);
- }
- vars->dropping = true;
---- a/net/sched/sch_codel.c
-+++ b/net/sched/sch_codel.c
-@@ -77,8 +77,8 @@ static struct sk_buff *codel_qdisc_deque
- struct codel_sched_data *q = qdisc_priv(sch);
- struct sk_buff *skb;
-
-- skb = codel_dequeue(sch, &q->params, &q->vars, &q->stats,
-- dequeue, &sch->qstats.backlog);
-+ skb = codel_dequeue(sch, &q->params, &q->vars, &q->stats, dequeue);
-+
- /* We cant call qdisc_tree_decrease_qlen() if our qlen is 0,
- * or HTB crashes. Defer it for next round.
- */
---- a/net/sched/sch_fq_codel.c
-+++ b/net/sched/sch_fq_codel.c
-@@ -217,13 +217,14 @@ static int fq_codel_enqueue(struct sk_bu
- */
- static struct sk_buff *dequeue(struct codel_vars *vars, struct Qdisc *sch)
- {
-+ struct fq_codel_sched_data *q = qdisc_priv(sch);
- struct fq_codel_flow *flow;
- struct sk_buff *skb = NULL;
-
- flow = container_of(vars, struct fq_codel_flow, cvars);
- if (flow->head) {
- skb = dequeue_head(flow);
-- sch->qstats.backlog -= qdisc_pkt_len(skb);
-+ q->backlogs[flow - q->flows] -= qdisc_pkt_len(skb);
- sch->q.qlen--;
- }
- return skb;
-@@ -256,7 +257,7 @@ begin:
- prev_ecn_mark = q->cstats.ecn_mark;
-
- skb = codel_dequeue(sch, &q->cparams, &flow->cvars, &q->cstats,
-- dequeue, &q->backlogs[flow - q->flows]);
-+ dequeue);
-
- flow->dropped += q->cstats.drop_count - prev_drop_count;
- flow->dropped += q->cstats.ecn_mark - prev_ecn_mark;