aboutsummaryrefslogtreecommitdiff
path: root/net/sched
diff options
context:
space:
mode:
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/Kconfig11
-rw-r--r--net/sched/cls_api.c2
-rw-r--r--net/sched/sch_api.c6
-rw-r--r--net/sched/sch_atm.c7
-rw-r--r--net/sched/sch_cbq.c8
-rw-r--r--net/sched/sch_dsmark.c8
-rw-r--r--net/sched/sch_generic.c2
-rw-r--r--net/sched/sch_gred.c3
-rw-r--r--net/sched/sch_hfsc.c8
-rw-r--r--net/sched/sch_htb.c27
-rw-r--r--net/sched/sch_ingress.c2
-rw-r--r--net/sched/sch_prio.c2
-rw-r--r--net/sched/sch_red.c3
-rw-r--r--net/sched/sch_sfq.c2
14 files changed, 47 insertions, 44 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 82adfe6447d..9437b27ff84 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -106,17 +106,6 @@ config NET_SCH_PRIO
To compile this code as a module, choose M here: the
module will be called sch_prio.
-config NET_SCH_RR
- tristate "Multi Band Round Robin Queuing (RR)"
- select NET_SCH_PRIO
- ---help---
- Say Y here if you want to use an n-band round robin packet
- scheduler.
-
- The module uses sch_prio for its framework and is aliased as
- sch_rr, so it will load sch_prio, although it is referred
- to using sch_rr.
-
config NET_SCH_RED
tristate "Random Early Detection (RED)"
---help---
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 1086df7478b..9360fc81e8c 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -220,7 +220,7 @@ replay:
tp = kzalloc(sizeof(*tp), GFP_KERNEL);
if (tp == NULL)
goto errout;
- err = -EINVAL;
+ err = -ENOENT;
tp_ops = tcf_proto_lookup_ops(tca[TCA_KIND]);
if (tp_ops == NULL) {
#ifdef CONFIG_KMOD
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c40773cdbe4..10f01ad0438 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1252,12 +1252,12 @@ void tcf_destroy(struct tcf_proto *tp)
kfree(tp);
}
-void tcf_destroy_chain(struct tcf_proto *fl)
+void tcf_destroy_chain(struct tcf_proto **fl)
{
struct tcf_proto *tp;
- while ((tp = fl) != NULL) {
- fl = tp->next;
+ while ((tp = *fl) != NULL) {
+ *fl = tp->next;
tcf_destroy(tp);
}
}
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 33527341638..db0e23ae85f 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -160,7 +160,7 @@ static void atm_tc_put(struct Qdisc *sch, unsigned long cl)
*prev = flow->next;
pr_debug("atm_tc_put: qdisc %p\n", flow->q);
qdisc_destroy(flow->q);
- tcf_destroy_chain(flow->filter_list);
+ tcf_destroy_chain(&flow->filter_list);
if (flow->sock) {
pr_debug("atm_tc_put: f_count %d\n",
file_count(flow->sock->file));
@@ -586,10 +586,11 @@ static void atm_tc_destroy(struct Qdisc *sch)
struct atm_flow_data *flow;
pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
+ for (flow = p->flows; flow; flow = flow->next)
+ tcf_destroy_chain(&flow->filter_list);
+
/* races ? */
while ((flow = p->flows)) {
- tcf_destroy_chain(flow->filter_list);
- flow->filter_list = NULL;
if (flow->ref > 1)
printk(KERN_ERR "atm_destroy: %p->ref = %d\n", flow,
flow->ref);
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 09969c1fbc0..2a3c97f7dc6 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1704,7 +1704,7 @@ static void cbq_destroy_class(struct Qdisc *sch, struct cbq_class *cl)
BUG_TRAP(!cl->filters);
- tcf_destroy_chain(cl->filter_list);
+ tcf_destroy_chain(&cl->filter_list);
qdisc_destroy(cl->q);
qdisc_put_rtab(cl->R_tab);
gen_kill_estimator(&cl->bstats, &cl->rate_est);
@@ -1728,10 +1728,8 @@ cbq_destroy(struct Qdisc* sch)
* be bound to classes which have been destroyed already. --TGR '04
*/
for (h = 0; h < 16; h++) {
- for (cl = q->classes[h]; cl; cl = cl->next) {
- tcf_destroy_chain(cl->filter_list);
- cl->filter_list = NULL;
- }
+ for (cl = q->classes[h]; cl; cl = cl->next)
+ tcf_destroy_chain(&cl->filter_list);
}
for (h = 0; h < 16; h++) {
struct cbq_class *next;
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 0df911fd67b..c4c1317cd47 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -416,7 +416,7 @@ static void dsmark_destroy(struct Qdisc *sch)
pr_debug("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p);
- tcf_destroy_chain(p->filter_list);
+ tcf_destroy_chain(&p->filter_list);
qdisc_destroy(p->q);
kfree(p->mask);
}
@@ -444,7 +444,8 @@ static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
return nla_nest_end(skb, opts);
nla_put_failure:
- return nla_nest_cancel(skb, opts);
+ nla_nest_cancel(skb, opts);
+ return -EMSGSIZE;
}
static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
@@ -466,7 +467,8 @@ static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
return nla_nest_end(skb, opts);
nla_put_failure:
- return nla_nest_cancel(skb, opts);
+ nla_nest_cancel(skb, opts);
+ return -EMSGSIZE;
}
static const struct Qdisc_class_ops dsmark_class_ops = {
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d355e5e47fe..13afa721439 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -468,7 +468,7 @@ struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops)
return sch;
errout:
- return ERR_PTR(-err);
+ return ERR_PTR(err);
}
struct Qdisc * qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops,
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index 3a9d226ff1e..c89fba56db5 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -582,7 +582,8 @@ append_opt:
return nla_nest_end(skb, opts);
nla_put_failure:
- return nla_nest_cancel(skb, opts);
+ nla_nest_cancel(skb, opts);
+ return -EMSGSIZE;
}
static void gred_destroy(struct Qdisc *sch)
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 87293d0db1d..e817aa00441 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1123,7 +1123,7 @@ hfsc_destroy_class(struct Qdisc *sch, struct hfsc_class *cl)
{
struct hfsc_sched *q = qdisc_priv(sch);
- tcf_destroy_chain(cl->filter_list);
+ tcf_destroy_chain(&cl->filter_list);
qdisc_destroy(cl->qdisc);
gen_kill_estimator(&cl->bstats, &cl->rate_est);
if (cl != &q->root)
@@ -1360,7 +1360,7 @@ hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
nla_put_failure:
nla_nest_cancel(skb, nest);
- return -1;
+ return -EMSGSIZE;
}
static int
@@ -1541,6 +1541,10 @@ hfsc_destroy_qdisc(struct Qdisc *sch)
unsigned int i;
for (i = 0; i < HFSC_HSIZE; i++) {
+ list_for_each_entry(cl, &q->clhash[i], hlist)
+ tcf_destroy_chain(&cl->filter_list);
+ }
+ for (i = 0; i < HFSC_HSIZE; i++) {
list_for_each_entry_safe(cl, next, &q->clhash[i], hlist)
hfsc_destroy_class(sch, cl);
}
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 5bc1ed49018..3fb58f428f7 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -28,6 +28,7 @@
* $Id: sch_htb.c,v 1.25 2003/12/07 11:08:25 devik Exp devik $
*/
#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
@@ -53,13 +54,17 @@
*/
#define HTB_HSIZE 16 /* classid hash size */
-#define HTB_HYSTERESIS 1 /* whether to use mode hysteresis for speedup */
+static int htb_hysteresis __read_mostly = 0; /* whether to use mode hysteresis for speedup */
#define HTB_VER 0x30011 /* major must be matched with number suplied by TC as version */
#if HTB_VER >> 16 != TC_HTB_PROTOVER
#error "Mismatched sch_htb.c and pkt_sch.h"
#endif
+/* Module parameter and sysfs export */
+module_param (htb_hysteresis, int, 0640);
+MODULE_PARM_DESC(htb_hysteresis, "Hysteresis mode, less CPU load, less accurate");
+
/* used internaly to keep status of single class */
enum htb_cmode {
HTB_CANT_SEND, /* class can't send and can't borrow */
@@ -462,19 +467,21 @@ static void htb_deactivate_prios(struct htb_sched *q, struct htb_class *cl)
htb_remove_class_from_row(q, cl, mask);
}
-#if HTB_HYSTERESIS
static inline long htb_lowater(const struct htb_class *cl)
{
- return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
+ if (htb_hysteresis)
+ return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
+ else
+ return 0;
}
static inline long htb_hiwater(const struct htb_class *cl)
{
- return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
+ if (htb_hysteresis)
+ return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
+ else
+ return 0;
}
-#else
-#define htb_lowater(cl) (0)
-#define htb_hiwater(cl) (0)
-#endif
+
/**
* htb_class_mode - computes and returns current class mode
@@ -1231,7 +1238,7 @@ static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
qdisc_put_rtab(cl->rate);
qdisc_put_rtab(cl->ceil);
- tcf_destroy_chain(cl->filter_list);
+ tcf_destroy_chain(&cl->filter_list);
while (!list_empty(&cl->children))
htb_destroy_class(sch, list_entry(cl->children.next,
@@ -1260,7 +1267,7 @@ static void htb_destroy(struct Qdisc *sch)
and surprisingly it worked in 2.4. But it must precede it
because filter need its target class alive to be able to call
unbind_filter on it (without Oops). */
- tcf_destroy_chain(q->filter_list);
+ tcf_destroy_chain(&q->filter_list);
while (!list_empty(&q->root))
htb_destroy_class(sch, list_entry(q->root.next,
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index 274b1ddb160..956c80ad596 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -104,7 +104,7 @@ static void ingress_destroy(struct Qdisc *sch)
{
struct ingress_qdisc_data *p = qdisc_priv(sch);
- tcf_destroy_chain(p->filter_list);
+ tcf_destroy_chain(&p->filter_list);
}
static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 4aa2b45dad0..5532f1031ab 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -219,7 +219,7 @@ prio_destroy(struct Qdisc* sch)
int prio;
struct prio_sched_data *q = qdisc_priv(sch);
- tcf_destroy_chain(q->filter_list);
+ tcf_destroy_chain(&q->filter_list);
for (prio=0; prio<q->bands; prio++)
qdisc_destroy(q->queues[prio]);
}
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 3dcd493f4f4..5c569853b9c 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -281,7 +281,8 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
return nla_nest_end(skb, opts);
nla_put_failure:
- return nla_nest_cancel(skb, opts);
+ nla_nest_cancel(skb, opts);
+ return -EMSGSIZE;
}
static int red_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index f0463d757a9..6a97afbfb95 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -520,7 +520,7 @@ static void sfq_destroy(struct Qdisc *sch)
{
struct sfq_sched_data *q = qdisc_priv(sch);
- tcf_destroy_chain(q->filter_list);
+ tcf_destroy_chain(&q->filter_list);
q->perturb_period = 0;
del_timer_sync(&q->perturb_timer);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-20 05:58:19 +0000