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authorJon Maloy <jon.maloy@ericsson.com>2018-02-14 13:34:39 +0100
committerDavid S. Miller <davem@davemloft.net>2018-02-14 15:22:24 -0500
commit37c64cf63ba1f9c071b37a2129ae9860fd423d6c (patch)
tree9c4837a85252baa3e662757ae90f04caca2cd110 /net/tipc/node.c
parenta92ac140fc30f5e8fc407d75de44e0bce7f59ab6 (diff)
downloadlinux-37c64cf63ba1f9c071b37a2129ae9860fd423d6c.tar.bz2
tipc: apply bearer link tolerance on running links
Currently, the default link tolerance set in struct tipc_bearer only has effect on links going up after that moment. I.e., a user has to reset all the node's links across that bearer to have the new value applied. This is too limiting and disturbing on a running cluster to be useful. We now change this so that also already existing links are updated dynamically, without any need for a reset, when the bearer value is changed. We leverage the already existing per-link functionality for this to achieve the wanted effect. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/node.c')
-rw-r--r--net/tipc/node.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 9036d8756e73..389193d7cf67 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1618,6 +1618,30 @@ discard:
kfree_skb(skb);
}
+void tipc_node_apply_tolerance(struct net *net, struct tipc_bearer *b)
+{
+ struct tipc_net *tn = tipc_net(net);
+ int bearer_id = b->identity;
+ struct sk_buff_head xmitq;
+ struct tipc_link_entry *e;
+ struct tipc_node *n;
+
+ __skb_queue_head_init(&xmitq);
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(n, &tn->node_list, list) {
+ tipc_node_write_lock(n);
+ e = &n->links[bearer_id];
+ if (e->link)
+ tipc_link_set_tolerance(e->link, b->tolerance, &xmitq);
+ tipc_node_write_unlock(n);
+ tipc_bearer_xmit(net, bearer_id, &xmitq, &e->maddr);
+ }
+
+ rcu_read_unlock();
+}
+
int tipc_nl_peer_rm(struct sk_buff *skb, struct genl_info *info)
{
struct net *net = sock_net(skb->sk);