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authorErik Hugne <erik.hugne@gmail.com>2016-04-07 10:40:44 -0400
committerDavid S. Miller <davem@davemloft.net>2016-04-11 15:22:20 -0400
commitddb1d33969ef52687ad00f75eecf87029f62e382 (patch)
tree6863f3e9a8ef3b08c199ddf13481ce967ff5c448 /net/tipc/name_distr.c
parent541726abe7daca64390c2ec34e6a203145f1686d (diff)
tipc: purge deferred updates from dead nodes
If a peer node becomes unavailable, in addition to removing the nametable entries from this node we also need to purge all deferred updates associated with this node. Signed-off-by: Erik Hugne <erik.hugne@gmail.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/name_distr.c')
-rw-r--r--net/tipc/name_distr.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 4f4f5810f223..6b626a64b517 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -224,12 +224,31 @@ static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
kfree_rcu(p, rcu);
}
+/**
+ * tipc_dist_queue_purge - remove deferred updates from a node that went down
+ */
+static void tipc_dist_queue_purge(struct net *net, u32 addr)
+{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct distr_queue_item *e, *tmp;
+
+ spin_lock_bh(&tn->nametbl_lock);
+ list_for_each_entry_safe(e, tmp, &tn->dist_queue, next) {
+ if (e->node != addr)
+ continue;
+ list_del(&e->next);
+ kfree(e);
+ }
+ spin_unlock_bh(&tn->nametbl_lock);
+}
+
void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr)
{
struct publication *publ, *tmp;
list_for_each_entry_safe(publ, tmp, nsub_list, nodesub_list)
tipc_publ_purge(net, publ, addr);
+ tipc_dist_queue_purge(net, addr);
}
/**