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-rw-r--r--include/net/ip_vs.h14
-rw-r--r--net/netfilter/ipvs/ip_vs_lblc.c13
-rw-r--r--net/netfilter/ipvs/ip_vs_lblcr.c25
-rw-r--r--net/netfilter/ipvs/ip_vs_lc.c18
-rw-r--r--net/netfilter/ipvs/ip_vs_wlc.c20
5 files changed, 27 insertions, 63 deletions
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 17b01b2d48f9..e74da41ebd1b 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1243,6 +1243,20 @@ static inline void ip_vs_conn_drop_conntrack(struct ip_vs_conn *cp)
/* CONFIG_IP_VS_NFCT */
#endif
+static inline unsigned int
+ip_vs_dest_conn_overhead(struct ip_vs_dest *dest)
+{
+ /*
+ * We think the overhead of processing active connections is 256
+ * times higher than that of inactive connections in average. (This
+ * 256 times might not be accurate, we will change it later) We
+ * use the following formula to estimate the overhead now:
+ * dest->activeconns*256 + dest->inactconns
+ */
+ return (atomic_read(&dest->activeconns) << 8) +
+ atomic_read(&dest->inactconns);
+}
+
#endif /* __KERNEL__ */
#endif /* _NET_IP_VS_H */
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index 4a9c8cd19690..6bf7a807649c 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -389,12 +389,7 @@ __ip_vs_lblc_schedule(struct ip_vs_service *svc)
int loh, doh;
/*
- * We think the overhead of processing active connections is fifty
- * times higher than that of inactive connections in average. (This
- * fifty times might not be accurate, we will change it later.) We
- * use the following formula to estimate the overhead:
- * dest->activeconns*50 + dest->inactconns
- * and the load:
+ * We use the following formula to estimate the load:
* (dest overhead) / dest->weight
*
* Remember -- no floats in kernel mode!!!
@@ -410,8 +405,7 @@ __ip_vs_lblc_schedule(struct ip_vs_service *svc)
continue;
if (atomic_read(&dest->weight) > 0) {
least = dest;
- loh = atomic_read(&least->activeconns) * 50
- + atomic_read(&least->inactconns);
+ loh = ip_vs_dest_conn_overhead(least);
goto nextstage;
}
}
@@ -425,8 +419,7 @@ __ip_vs_lblc_schedule(struct ip_vs_service *svc)
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
- doh = atomic_read(&dest->activeconns) * 50
- + atomic_read(&dest->inactconns);
+ doh = ip_vs_dest_conn_overhead(dest);
if (loh * atomic_read(&dest->weight) >
doh * atomic_read(&least->weight)) {
least = dest;
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index bd329b1e9589..00631765b92a 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -178,8 +178,7 @@ static inline struct ip_vs_dest *ip_vs_dest_set_min(struct ip_vs_dest_set *set)
if ((atomic_read(&least->weight) > 0)
&& (least->flags & IP_VS_DEST_F_AVAILABLE)) {
- loh = atomic_read(&least->activeconns) * 50
- + atomic_read(&least->inactconns);
+ loh = ip_vs_dest_conn_overhead(least);
goto nextstage;
}
}
@@ -192,8 +191,7 @@ static inline struct ip_vs_dest *ip_vs_dest_set_min(struct ip_vs_dest_set *set)
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
- doh = atomic_read(&dest->activeconns) * 50
- + atomic_read(&dest->inactconns);
+ doh = ip_vs_dest_conn_overhead(dest);
if ((loh * atomic_read(&dest->weight) >
doh * atomic_read(&least->weight))
&& (dest->flags & IP_VS_DEST_F_AVAILABLE)) {
@@ -228,8 +226,7 @@ static inline struct ip_vs_dest *ip_vs_dest_set_max(struct ip_vs_dest_set *set)
list_for_each_entry(e, &set->list, list) {
most = e->dest;
if (atomic_read(&most->weight) > 0) {
- moh = atomic_read(&most->activeconns) * 50
- + atomic_read(&most->inactconns);
+ moh = ip_vs_dest_conn_overhead(most);
goto nextstage;
}
}
@@ -239,8 +236,7 @@ static inline struct ip_vs_dest *ip_vs_dest_set_max(struct ip_vs_dest_set *set)
nextstage:
list_for_each_entry(e, &set->list, list) {
dest = e->dest;
- doh = atomic_read(&dest->activeconns) * 50
- + atomic_read(&dest->inactconns);
+ doh = ip_vs_dest_conn_overhead(dest);
/* moh/mw < doh/dw ==> moh*dw < doh*mw, where mw,dw>0 */
if ((moh * atomic_read(&dest->weight) <
doh * atomic_read(&most->weight))
@@ -563,12 +559,7 @@ __ip_vs_lblcr_schedule(struct ip_vs_service *svc)
int loh, doh;
/*
- * We think the overhead of processing active connections is fifty
- * times higher than that of inactive connections in average. (This
- * fifty times might not be accurate, we will change it later.) We
- * use the following formula to estimate the overhead:
- * dest->activeconns*50 + dest->inactconns
- * and the load:
+ * We use the following formula to estimate the load:
* (dest overhead) / dest->weight
*
* Remember -- no floats in kernel mode!!!
@@ -585,8 +576,7 @@ __ip_vs_lblcr_schedule(struct ip_vs_service *svc)
if (atomic_read(&dest->weight) > 0) {
least = dest;
- loh = atomic_read(&least->activeconns) * 50
- + atomic_read(&least->inactconns);
+ loh = ip_vs_dest_conn_overhead(least);
goto nextstage;
}
}
@@ -600,8 +590,7 @@ __ip_vs_lblcr_schedule(struct ip_vs_service *svc)
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
- doh = atomic_read(&dest->activeconns) * 50
- + atomic_read(&dest->inactconns);
+ doh = ip_vs_dest_conn_overhead(dest);
if (loh * atomic_read(&dest->weight) >
doh * atomic_read(&least->weight)) {
least = dest;
diff --git a/net/netfilter/ipvs/ip_vs_lc.c b/net/netfilter/ipvs/ip_vs_lc.c
index 60638007c6c7..f391819c0cca 100644
--- a/net/netfilter/ipvs/ip_vs_lc.c
+++ b/net/netfilter/ipvs/ip_vs_lc.c
@@ -22,22 +22,6 @@
#include <net/ip_vs.h>
-
-static inline unsigned int
-ip_vs_lc_dest_overhead(struct ip_vs_dest *dest)
-{
- /*
- * We think the overhead of processing active connections is 256
- * times higher than that of inactive connections in average. (This
- * 256 times might not be accurate, we will change it later) We
- * use the following formula to estimate the overhead now:
- * dest->activeconns*256 + dest->inactconns
- */
- return (atomic_read(&dest->activeconns) << 8) +
- atomic_read(&dest->inactconns);
-}
-
-
/*
* Least Connection scheduling
*/
@@ -62,7 +46,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
if ((dest->flags & IP_VS_DEST_F_OVERLOAD) ||
atomic_read(&dest->weight) == 0)
continue;
- doh = ip_vs_lc_dest_overhead(dest);
+ doh = ip_vs_dest_conn_overhead(dest);
if (!least || doh < loh) {
least = dest;
loh = doh;
diff --git a/net/netfilter/ipvs/ip_vs_wlc.c b/net/netfilter/ipvs/ip_vs_wlc.c
index fdf0f58962a4..bc1bfc48a17f 100644
--- a/net/netfilter/ipvs/ip_vs_wlc.c
+++ b/net/netfilter/ipvs/ip_vs_wlc.c
@@ -27,22 +27,6 @@
#include <net/ip_vs.h>
-
-static inline unsigned int
-ip_vs_wlc_dest_overhead(struct ip_vs_dest *dest)
-{
- /*
- * We think the overhead of processing active connections is 256
- * times higher than that of inactive connections in average. (This
- * 256 times might not be accurate, we will change it later) We
- * use the following formula to estimate the overhead now:
- * dest->activeconns*256 + dest->inactconns
- */
- return (atomic_read(&dest->activeconns) << 8) +
- atomic_read(&dest->inactconns);
-}
-
-
/*
* Weighted Least Connection scheduling
*/
@@ -71,7 +55,7 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
if (!(dest->flags & IP_VS_DEST_F_OVERLOAD) &&
atomic_read(&dest->weight) > 0) {
least = dest;
- loh = ip_vs_wlc_dest_overhead(least);
+ loh = ip_vs_dest_conn_overhead(least);
goto nextstage;
}
}
@@ -85,7 +69,7 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
list_for_each_entry_continue(dest, &svc->destinations, n_list) {
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
- doh = ip_vs_wlc_dest_overhead(dest);
+ doh = ip_vs_dest_conn_overhead(dest);
if (loh * atomic_read(&dest->weight) >
doh * atomic_read(&least->weight)) {
least = dest;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.