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Date: Tue, 30 Dec 2008 11:46:44 +1100
From: Simon Horman <horms@...ge.net.au>
To: lvs-devel@...r.kernel.org, netdev@...r.kernel.org
Cc: David Miller <davem@...emloft.net>, Joseph Mack <jmack@...d.net>,
Graeme Fowler <graeme@...emef.net>,
Siim Põder <windo@...rad-teel.net>
Subject: [patch] IPVS: Make "no destination available" message more
consistent between schedulers
Cc: Joseph Mack <jmack@...d.net>
Cc: Siim Põder <windo@...rad-teel.net>
Acked-by: Graeme Fowler <graeme@...emef.net>
Signed-off-by: Simon Horman <horms@...ge.net.au>
---
net/netfilter/ipvs/ip_vs_lblc.c | 2 +-
net/netfilter/ipvs/ip_vs_lblcr.c | 2 +-
net/netfilter/ipvs/ip_vs_lc.c | 14 +++++++++-----
net/netfilter/ipvs/ip_vs_nq.c | 4 +++-
net/netfilter/ipvs/ip_vs_rr.c | 1 +
net/netfilter/ipvs/ip_vs_sed.c | 1 +
net/netfilter/ipvs/ip_vs_sh.c | 1 +
net/netfilter/ipvs/ip_vs_wlc.c | 1 +
net/netfilter/ipvs/ip_vs_wrr.c | 8 ++++++--
9 files changed, 24 insertions(+), 10 deletions(-)
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_lblc.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_lblc.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_lblc.c 2008-12-30 11:30:05.000000000 +1100
@@ -507,7 +507,7 @@ ip_vs_lblc_schedule(struct ip_vs_service
/* No cache entry or it is invalid, time to schedule */
dest = __ip_vs_lblc_schedule(svc);
if (!dest) {
- IP_VS_DBG(1, "no destination available\n");
+ IP_VS_ERR_RL("LBLC: no destination available\n");
return NULL;
}
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_lblcr.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_lblcr.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_lblcr.c 2008-12-30 11:30:05.000000000 +1100
@@ -690,7 +690,7 @@ ip_vs_lblcr_schedule(struct ip_vs_servic
/* The cache entry is invalid, time to schedule */
dest = __ip_vs_lblcr_schedule(svc);
if (!dest) {
- IP_VS_DBG(1, "no destination available\n");
+ IP_VS_ERR_RL("LBLCR: no destination available\n");
read_unlock(&svc->sched_lock);
return NULL;
}
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_lc.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_lc.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_lc.c 2008-12-30 11:30:05.000000000 +1100
@@ -66,11 +66,15 @@ ip_vs_lc_schedule(struct ip_vs_service *
}
}
- if (least)
- IP_VS_DBG_BUF(6, "LC: server %s:%u activeconns %d inactconns %d\n",
- IP_VS_DBG_ADDR(svc->af, &least->addr), ntohs(least->port),
- atomic_read(&least->activeconns),
- atomic_read(&least->inactconns));
+ if (!least)
+ IP_VS_ERR_RL("LC: no destination available\n");
+ else
+ IP_VS_DBG_BUF(6, "LC: server %s:%u activeconns %d "
+ "inactconns %d\n",
+ IP_VS_DBG_ADDR(svc->af, &least->addr),
+ ntohs(least->port),
+ atomic_read(&least->activeconns),
+ atomic_read(&least->inactconns));
return least;
}
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_nq.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_nq.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_nq.c 2008-12-30 11:30:05.000000000 +1100
@@ -95,8 +95,10 @@ ip_vs_nq_schedule(struct ip_vs_service *
}
}
- if (!least)
+ if (!least) {
+ IP_VS_ERR_RL("NQ: no destination available\n");
return NULL;
+ }
out:
IP_VS_DBG_BUF(6, "NQ: server %s:%u "
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_rr.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_rr.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_rr.c 2008-12-30 11:30:05.000000000 +1100
@@ -69,6 +69,7 @@ ip_vs_rr_schedule(struct ip_vs_service *
q = q->next;
} while (q != p);
write_unlock(&svc->sched_lock);
+ IP_VS_ERR_RL("RR: no destination available\n");
return NULL;
out:
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_sed.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_sed.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_sed.c 2008-12-30 11:30:05.000000000 +1100
@@ -84,6 +84,7 @@ ip_vs_sed_schedule(struct ip_vs_service
goto nextstage;
}
}
+ IP_VS_ERR_RL("SED: no destination available\n");
return NULL;
/*
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_sh.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_sh.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_sh.c 2008-12-30 11:30:05.000000000 +1100
@@ -219,6 +219,7 @@ ip_vs_sh_schedule(struct ip_vs_service *
|| !(dest->flags & IP_VS_DEST_F_AVAILABLE)
|| atomic_read(&dest->weight) <= 0
|| is_overloaded(dest)) {
+ IP_VS_ERR_RL("SH: no destination available\n");
return NULL;
}
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_wlc.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_wlc.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_wlc.c 2008-12-30 11:30:05.000000000 +1100
@@ -72,6 +72,7 @@ ip_vs_wlc_schedule(struct ip_vs_service
goto nextstage;
}
}
+ IP_VS_ERR_RL("WLC: no destination available\n");
return NULL;
/*
Index: net-next-2.6/net/netfilter/ipvs/ip_vs_wrr.c
===================================================================
--- net-next-2.6.orig/net/netfilter/ipvs/ip_vs_wrr.c 2008-12-30 11:21:16.000000000 +1100
+++ net-next-2.6/net/netfilter/ipvs/ip_vs_wrr.c 2008-12-30 11:30:05.000000000 +1100
@@ -155,6 +155,8 @@ ip_vs_wrr_schedule(struct ip_vs_service
if (mark->cl == mark->cl->next) {
/* no dest entry */
+ IP_VS_ERR_RL("WRR: no destination available: "
+ "no destinations present\n");
dest = NULL;
goto out;
}
@@ -168,8 +170,8 @@ ip_vs_wrr_schedule(struct ip_vs_service
*/
if (mark->cw == 0) {
mark->cl = &svc->destinations;
- IP_VS_ERR_RL("ip_vs_wrr_schedule(): "
- "no available servers\n");
+ IP_VS_ERR_RL("WRR: no destination "
+ "available\n");
dest = NULL;
goto out;
}
@@ -191,6 +193,8 @@ ip_vs_wrr_schedule(struct ip_vs_service
/* 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");
goto out;
}
}
--
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