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authorErik Hugne <erik.hugne@gmail.com>2016-04-07 10:40:43 -0400
committerDavid S. Miller <davem@davemloft.net>2016-04-11 15:22:20 -0400
commit541726abe7daca64390c2ec34e6a203145f1686d (patch)
treed335e57ce92b7092cadd7c6e406d3b0c5bfa56e6 /net/tipc/name_distr.c
parentebf4dc2b1b2b9c8c7797f01a952bce3cf0247a4f (diff)
downloadop-kernel-dev-541726abe7daca64390c2ec34e6a203145f1686d.zip
op-kernel-dev-541726abe7daca64390c2ec34e6a203145f1686d.tar.gz
tipc: make dist queue pernet
Nametable updates received from the network that cannot be applied immediately are placed on a defer queue. This queue is global to the TIPC module, which might cause problems when using TIPC in containers. To prevent nametable updates from escaping into the wrong namespace, we make the queue pernet instead. 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.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index ebe9d0f..4f4f581 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -40,11 +40,6 @@
int sysctl_tipc_named_timeout __read_mostly = 2000;
-/**
- * struct tipc_dist_queue - queue holding deferred name table updates
- */
-static struct list_head tipc_dist_queue = LIST_HEAD_INIT(tipc_dist_queue);
-
struct distr_queue_item {
struct distr_item i;
u32 dtype;
@@ -279,9 +274,11 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
* tipc_named_add_backlog - add a failed name table update to the backlog
*
*/
-static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
+static void tipc_named_add_backlog(struct net *net, struct distr_item *i,
+ u32 type, u32 node)
{
struct distr_queue_item *e;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
unsigned long now = get_jiffies_64();
e = kzalloc(sizeof(*e), GFP_ATOMIC);
@@ -291,7 +288,7 @@ static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
e->node = node;
e->expires = now + msecs_to_jiffies(sysctl_tipc_named_timeout);
memcpy(e, i, sizeof(*i));
- list_add_tail(&e->next, &tipc_dist_queue);
+ list_add_tail(&e->next, &tn->dist_queue);
}
/**
@@ -301,10 +298,11 @@ static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
void tipc_named_process_backlog(struct net *net)
{
struct distr_queue_item *e, *tmp;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
char addr[16];
unsigned long now = get_jiffies_64();
- list_for_each_entry_safe(e, tmp, &tipc_dist_queue, next) {
+ list_for_each_entry_safe(e, tmp, &tn->dist_queue, next) {
if (time_after(e->expires, now)) {
if (!tipc_update_nametbl(net, &e->i, e->node, e->dtype))
continue;
@@ -344,7 +342,7 @@ void tipc_named_rcv(struct net *net, struct sk_buff_head *inputq)
node = msg_orignode(msg);
while (count--) {
if (!tipc_update_nametbl(net, item, node, mtype))
- tipc_named_add_backlog(item, mtype, node);
+ tipc_named_add_backlog(net, item, mtype, node);
item++;
}
kfree_skb(skb);
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