summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorPatrick Schaaf <netdev@bof.de>2011-02-11 14:01:12 +0100
committerSimon Horman <horms@verge.net.au>2011-02-16 14:53:33 +0900
commit41ac51eeda58a85b8a06d748cce7035cc77deebd (patch)
treed647f55796e3b7cb0d5a9f86429ce89877afacec
parent6cb90db502c5f276c8d6256762cc3acde4d3bd9d (diff)
downloadop-kernel-dev-41ac51eeda58a85b8a06d748cce7035cc77deebd.zip
op-kernel-dev-41ac51eeda58a85b8a06d748cce7035cc77deebd.tar.gz
ipvs: make "no destination available" message more informative
When IP_VS schedulers do not find a destination, they output a terse "WLC: no destination available" message through kernel syslog, which I can not only make sense of because syslog puts them in a logfile together with keepalived checker results. This patch makes the output a bit more informative, by telling you which virtual service failed to find a destination. Example output: kernel: [1539214.552233] IPVS: wlc: TCP 192.168.8.30:22 - no destination available kernel: [1539299.674418] IPVS: wlc: FWM 22 0x00000016 - no destination available I have tested the code for IPv4 and FWM services, as you can see from the example; I do not have an IPv6 setup to test the third code path with. To avoid code duplication, I put a new function ip_vs_scheduler_err() into ip_vs_sched.c, and use that from the schedulers instead of calling IP_VS_ERR_RL directly. Signed-off-by: Patrick Schaaf <netdev@bof.de> Signed-off-by: Simon Horman <horms@verge.net.au>
-rw-r--r--include/net/ip_vs.h2
-rw-r--r--net/netfilter/ipvs/ip_vs_lblc.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_lblcr.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_lc.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_nq.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_rr.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_sched.c25
-rw-r--r--net/netfilter/ipvs/ip_vs_sed.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_sh.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_wlc.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_wrr.c14
11 files changed, 43 insertions, 14 deletions
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 5d75fea..9399549 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1019,6 +1019,8 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
extern int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
struct ip_vs_proto_data *pd);
+extern void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg);
+
/*
* IPVS control data and functions (from ip_vs_ctl.c)
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index 00b5ffa..4a9c8cd 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -510,7 +510,7 @@ ip_vs_lblc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
/* No cache entry or it is invalid, time to schedule */
dest = __ip_vs_lblc_schedule(svc);
if (!dest) {
- IP_VS_ERR_RL("LBLC: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
return NULL;
}
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index bfa25f1..bd329b1 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -692,7 +692,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
/* The cache entry is invalid, time to schedule */
dest = __ip_vs_lblcr_schedule(svc);
if (!dest) {
- IP_VS_ERR_RL("LBLCR: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
read_unlock(&svc->sched_lock);
return NULL;
}
diff --git a/net/netfilter/ipvs/ip_vs_lc.c b/net/netfilter/ipvs/ip_vs_lc.c
index 4f69db1..6063800 100644
--- a/net/netfilter/ipvs/ip_vs_lc.c
+++ b/net/netfilter/ipvs/ip_vs_lc.c
@@ -70,7 +70,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
}
if (!least)
- IP_VS_ERR_RL("LC: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
else
IP_VS_DBG_BUF(6, "LC: server %s:%u activeconns %d "
"inactconns %d\n",
diff --git a/net/netfilter/ipvs/ip_vs_nq.c b/net/netfilter/ipvs/ip_vs_nq.c
index c413e18..984d9c1 100644
--- a/net/netfilter/ipvs/ip_vs_nq.c
+++ b/net/netfilter/ipvs/ip_vs_nq.c
@@ -99,7 +99,7 @@ ip_vs_nq_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
}
if (!least) {
- IP_VS_ERR_RL("NQ: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
return NULL;
}
diff --git a/net/netfilter/ipvs/ip_vs_rr.c b/net/netfilter/ipvs/ip_vs_rr.c
index e210f37..c49b388 100644
--- a/net/netfilter/ipvs/ip_vs_rr.c
+++ b/net/netfilter/ipvs/ip_vs_rr.c
@@ -72,7 +72,7 @@ ip_vs_rr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
q = q->next;
} while (q != p);
write_unlock(&svc->sched_lock);
- IP_VS_ERR_RL("RR: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
return NULL;
out:
diff --git a/net/netfilter/ipvs/ip_vs_sched.c b/net/netfilter/ipvs/ip_vs_sched.c
index 076ebe0..08dbdd5 100644
--- a/net/netfilter/ipvs/ip_vs_sched.c
+++ b/net/netfilter/ipvs/ip_vs_sched.c
@@ -29,6 +29,7 @@
#include <net/ip_vs.h>
+EXPORT_SYMBOL(ip_vs_scheduler_err);
/*
* IPVS scheduler list
*/
@@ -146,6 +147,30 @@ void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler)
module_put(scheduler->module);
}
+/*
+ * Common error output helper for schedulers
+ */
+
+void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg)
+{
+ if (svc->fwmark) {
+ IP_VS_ERR_RL("%s: FWM %u 0x%08X - %s\n",
+ svc->scheduler->name, svc->fwmark,
+ svc->fwmark, msg);
+#ifdef CONFIG_IP_VS_IPV6
+ } else if (svc->af == AF_INET6) {
+ IP_VS_ERR_RL("%s: %s [%pI6]:%d - %s\n",
+ svc->scheduler->name,
+ ip_vs_proto_name(svc->protocol),
+ &svc->addr.in6, ntohs(svc->port), msg);
+#endif
+ } else {
+ IP_VS_ERR_RL("%s: %s %pI4:%d - %s\n",
+ svc->scheduler->name,
+ ip_vs_proto_name(svc->protocol),
+ &svc->addr.ip, ntohs(svc->port), msg);
+ }
+}
/*
* Register a scheduler in the scheduler list
diff --git a/net/netfilter/ipvs/ip_vs_sed.c b/net/netfilter/ipvs/ip_vs_sed.c
index 1ab75a9..89ead246 100644
--- a/net/netfilter/ipvs/ip_vs_sed.c
+++ b/net/netfilter/ipvs/ip_vs_sed.c
@@ -87,7 +87,7 @@ ip_vs_sed_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
goto nextstage;
}
}
- IP_VS_ERR_RL("SED: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
return NULL;
/*
diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c
index e6cc174..b5e2556 100644
--- a/net/netfilter/ipvs/ip_vs_sh.c
+++ b/net/netfilter/ipvs/ip_vs_sh.c
@@ -223,7 +223,7 @@ ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
|| !(dest->flags & IP_VS_DEST_F_AVAILABLE)
|| atomic_read(&dest->weight) <= 0
|| is_overloaded(dest)) {
- IP_VS_ERR_RL("SH: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
return NULL;
}
diff --git a/net/netfilter/ipvs/ip_vs_wlc.c b/net/netfilter/ipvs/ip_vs_wlc.c
index bbddfdb..fdf0f58 100644
--- a/net/netfilter/ipvs/ip_vs_wlc.c
+++ b/net/netfilter/ipvs/ip_vs_wlc.c
@@ -75,7 +75,7 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
goto nextstage;
}
}
- IP_VS_ERR_RL("WLC: no destination available\n");
+ ip_vs_scheduler_err(svc, "no destination available");
return NULL;
/*
diff --git a/net/netfilter/ipvs/ip_vs_wrr.c b/net/netfilter/ipvs/ip_vs_wrr.c
index 30db633..1ef41f5 100644
--- a/net/netfilter/ipvs/ip_vs_wrr.c
+++ b/net/netfilter/ipvs/ip_vs_wrr.c
@@ -147,8 +147,9 @@ ip_vs_wrr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
if (mark->cl == mark->cl->next) {
/* no dest entry */
- IP_VS_ERR_RL("WRR: no destination available: "
- "no destinations present\n");
+ ip_vs_scheduler_err(svc,
+ "no destination available: "
+ "no destinations present");
dest = NULL;
goto out;
}
@@ -162,8 +163,8 @@ ip_vs_wrr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
*/
if (mark->cw == 0) {
mark->cl = &svc->destinations;
- IP_VS_ERR_RL("WRR: no destination "
- "available\n");
+ ip_vs_scheduler_err(svc,
+ "no destination available");
dest = NULL;
goto out;
}
@@ -185,8 +186,9 @@ ip_vs_wrr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
/* back to the start, and no dest is found.
It is only possible when all dests are OVERLOADED */
dest = NULL;
- IP_VS_ERR_RL("WRR: no destination available: "
- "all destinations are overloaded\n");
+ ip_vs_scheduler_err(svc,
+ "no destination available: "
+ "all destinations are overloaded");
goto out;
}
}
OpenPOWER on IntegriCloud