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-rw-r--r--net/sched/sch_dsmark.c6
-rw-r--r--net/sched/sch_gred.c3
-rw-r--r--net/sched/sch_hfsc.c2
-rw-r--r--net/sched/sch_htb.c23
-rw-r--r--net/sched/sch_red.c3
5 files changed, 24 insertions, 13 deletions
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 0df911fd67b1..64465bacbe79 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -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_gred.c b/net/sched/sch_gred.c
index 3a9d226ff1e4..c89fba56db56 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 87293d0db1d7..fdfaa3fcc16d 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -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
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 5bc1ed490180..6807c97985a5 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
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 3dcd493f4f4a..5c569853b9c0 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)