86 lines
3.1 KiB
Diff
86 lines
3.1 KiB
Diff
|
From dc862e15cc084926eccc5e1ff3241611c0cb54f0 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Jan Friesse <jfriesse@redhat.com>
|
||
|
|
Date: Mon, 29 Aug 2011 10:44:05 +0200
|
||
|
|
Subject: [PATCH] rrp: Handle endless loop if all ifaces are faulty
|
||
|
|
|
||
|
|
If all interfaces were faulty, passive_mcast_flush_send and related
|
||
|
|
functions ended in endless loop. This is now handled and if there is no
|
||
|
|
live interface, message is dropped.
|
||
|
|
|
||
|
|
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
|
||
|
|
Reviewed by: Steven Dake <sdake@redhat.com>
|
||
|
|
(cherry picked from commit 0eade8de79b6e5b28e91604d4d460627c7a61ddd)
|
||
|
|
---
|
||
|
|
exec/totemrrp.c | 29 ++++++++++++++++++++---------
|
||
|
|
1 files changed, 20 insertions(+), 9 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/exec/totemrrp.c b/exec/totemrrp.c
|
||
|
|
index 83292ad..a5abb1b 100644
|
||
|
|
--- a/exec/totemrrp.c
|
||
|
|
+++ b/exec/totemrrp.c
|
||
|
|
@@ -1015,12 +1015,16 @@ static void passive_mcast_flush_send (
|
||
|
|
unsigned int msg_len)
|
||
|
|
{
|
||
|
|
struct passive_instance *passive_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
||
|
|
+ int i = 0;
|
||
|
|
|
||
|
|
do {
|
||
|
|
passive_instance->msg_xmit_iface = (passive_instance->msg_xmit_iface + 1) % instance->interface_count;
|
||
|
|
- } while (passive_instance->faulty[passive_instance->msg_xmit_iface] == 1);
|
||
|
|
+ i++;
|
||
|
|
+ } while ((i <= instance->interface_count) && (passive_instance->faulty[passive_instance->msg_xmit_iface] == 1));
|
||
|
|
|
||
|
|
- totemnet_mcast_flush_send (instance->net_handles[passive_instance->msg_xmit_iface], msg, msg_len);
|
||
|
|
+ if (i <= instance->interface_count) {
|
||
|
|
+ totemnet_mcast_flush_send (instance->net_handles[passive_instance->msg_xmit_iface], msg, msg_len);
|
||
|
|
+ }
|
||
|
|
}
|
||
|
|
|
||
|
|
static void passive_mcast_noflush_send (
|
||
|
|
@@ -1029,13 +1033,16 @@ static void passive_mcast_noflush_send (
|
||
|
|
unsigned int msg_len)
|
||
|
|
{
|
||
|
|
struct passive_instance *passive_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
||
|
|
+ int i = 0;
|
||
|
|
|
||
|
|
do {
|
||
|
|
passive_instance->msg_xmit_iface = (passive_instance->msg_xmit_iface + 1) % instance->interface_count;
|
||
|
|
- } while (passive_instance->faulty[passive_instance->msg_xmit_iface] == 1);
|
||
|
|
-
|
||
|
|
+ i++;
|
||
|
|
+ } while ((i <= instance->interface_count) && (passive_instance->faulty[passive_instance->msg_xmit_iface] == 1));
|
||
|
|
|
||
|
|
- totemnet_mcast_noflush_send (instance->net_handles[passive_instance->msg_xmit_iface], msg, msg_len);
|
||
|
|
+ if (i <= instance->interface_count) {
|
||
|
|
+ totemnet_mcast_noflush_send (instance->net_handles[passive_instance->msg_xmit_iface], msg, msg_len);
|
||
|
|
+ }
|
||
|
|
}
|
||
|
|
|
||
|
|
static void passive_token_recv (
|
||
|
|
@@ -1070,14 +1077,18 @@ static void passive_token_send (
|
||
|
|
unsigned int msg_len)
|
||
|
|
{
|
||
|
|
struct passive_instance *passive_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
||
|
|
+ int i = 0;
|
||
|
|
|
||
|
|
do {
|
||
|
|
passive_instance->token_xmit_iface = (passive_instance->token_xmit_iface + 1) % instance->interface_count;
|
||
|
|
- } while (passive_instance->faulty[passive_instance->token_xmit_iface] == 1);
|
||
|
|
+ i++;
|
||
|
|
+ } while ((i <= instance->interface_count) && (passive_instance->faulty[passive_instance->token_xmit_iface] == 1));
|
||
|
|
|
||
|
|
- totemnet_token_send (
|
||
|
|
- instance->net_handles[passive_instance->token_xmit_iface],
|
||
|
|
- msg, msg_len);
|
||
|
|
+ if (i <= instance->interface_count) {
|
||
|
|
+ totemnet_token_send (
|
||
|
|
+ instance->net_handles[passive_instance->token_xmit_iface],
|
||
|
|
+ msg, msg_len);
|
||
|
|
+ }
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
--
|
||
|
|
1.7.1
|
||
|
|
|