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tipc: fix excessive network event logging 

If a large number of namespaces is spawned on a node and TIPC is
enabled in each of these, the excessive printk tracing of network
events will cause the system to grind down to a near halt.
The traces are still of debug value, so instead of removing them
completely we fix it by changing the link state and node availability
logging debug traces.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Erik Hugne 2015-01-22 17:10:31 +01:00 committed by David S. Miller
parent 9c5d94bc18
commit 3fa9cacd69
2 changed files with 21 additions and 21 deletions
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20
net/tipc/link.c
View File

@ -538,8 +538,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
link_set_timer(l_ptr, cont_intv / 4);
break;
case RESET_MSG:
pr_info("%s<%s>, requested by peer\n", link_rst_msg,
l_ptr->name);
pr_debug("%s<%s>, requested by peer\n",
link_rst_msg, l_ptr->name);
tipc_link_reset(l_ptr);
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
@ -549,7 +549,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
link_set_timer(l_ptr, cont_intv);
break;
default:
pr_err("%s%u in WW state\n", link_unk_evt, event);
pr_debug("%s%u in WW state\n", link_unk_evt, event);
}
break;
case WORKING_UNKNOWN:
@ -561,8 +561,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
link_set_timer(l_ptr, cont_intv);
break;
case RESET_MSG:
pr_info("%s<%s>, requested by peer while probing\n",
link_rst_msg, l_ptr->name);
pr_debug("%s<%s>, requested by peer while probing\n",
link_rst_msg, l_ptr->name);
tipc_link_reset(l_ptr);
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
@ -588,8 +588,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv / 4);
} else { /* Link has failed */
pr_warn("%s<%s>, peer not responding\n",
link_rst_msg, l_ptr->name);
pr_debug("%s<%s>, peer not responding\n",
link_rst_msg, l_ptr->name);
tipc_link_reset(l_ptr);
l_ptr->state = RESET_UNKNOWN;
l_ptr->fsm_msg_cnt = 0;
@ -1568,9 +1568,9 @@ static void tipc_link_proto_rcv(struct net *net, struct tipc_link *l_ptr,
if (msg_linkprio(msg) &&
(msg_linkprio(msg) != l_ptr->priority)) {
pr_warn("%s<%s>, priority change %u->%u\n",
link_rst_msg, l_ptr->name, l_ptr->priority,
msg_linkprio(msg));
pr_debug("%s<%s>, priority change %u->%u\n",
link_rst_msg, l_ptr->name,
l_ptr->priority, msg_linkprio(msg));
l_ptr->priority = msg_linkprio(msg);
tipc_link_reset(l_ptr); /* Enforce change to take effect */
break;

22
net/tipc/node.c
View File

@ -230,8 +230,8 @@ void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
n_ptr->action_flags |= TIPC_NOTIFY_LINK_UP;
n_ptr->link_id = l_ptr->peer_bearer_id << 16 | l_ptr->bearer_id;
pr_info("Established link <%s> on network plane %c\n",
l_ptr->name, l_ptr->net_plane);
pr_debug("Established link <%s> on network plane %c\n",
l_ptr->name, l_ptr->net_plane);
if (!active[0]) {
active[0] = active[1] = l_ptr;
@ -239,7 +239,7 @@ void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
goto exit;
}
if (l_ptr->priority < active[0]->priority) {
pr_info("New link <%s> becomes standby\n", l_ptr->name);
pr_debug("New link <%s> becomes standby\n", l_ptr->name);
goto exit;
}
tipc_link_dup_queue_xmit(active[0], l_ptr);
@ -247,9 +247,9 @@ void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
active[0] = l_ptr;
goto exit;
}
pr_info("Old link <%s> becomes standby\n", active[0]->name);
pr_debug("Old link <%s> becomes standby\n", active[0]->name);
if (active[1] != active[0])
pr_info("Old link <%s> becomes standby\n", active[1]->name);
pr_debug("Old link <%s> becomes standby\n", active[1]->name);
active[0] = active[1] = l_ptr;
exit:
/* Leave room for changeover header when returning 'mtu' to users: */
@ -297,12 +297,12 @@ void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
n_ptr->link_id = l_ptr->peer_bearer_id << 16 | l_ptr->bearer_id;
if (!tipc_link_is_active(l_ptr)) {
pr_info("Lost standby link <%s> on network plane %c\n",
l_ptr->name, l_ptr->net_plane);
pr_debug("Lost standby link <%s> on network plane %c\n",
l_ptr->name, l_ptr->net_plane);
return;
}
pr_info("Lost link <%s> on network plane %c\n",
l_ptr->name, l_ptr->net_plane);
pr_debug("Lost link <%s> on network plane %c\n",
l_ptr->name, l_ptr->net_plane);
active = &n_ptr->active_links[0];
if (active[0] == l_ptr)
@ -380,8 +380,8 @@ static void node_lost_contact(struct tipc_node *n_ptr)
char addr_string[16];
u32 i;
pr_info("Lost contact with %s\n",
tipc_addr_string_fill(addr_string, n_ptr->addr));
pr_debug("Lost contact with %s\n",
tipc_addr_string_fill(addr_string, n_ptr->addr));
/* Flush broadcast link info associated with lost node */
if (n_ptr->bclink.recv_permitted) {