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Date: Tue, 11 Aug 2015 22:17:58 -0700
From: Pravin B Shelar <pshelar@...ira.com>
To: netdev@...r.kernel.org
Cc: Pravin B Shelar <pshelar@...ira.com>
Subject: [PATCH net-next 6/6] geneve: Remove duplicate dev list
Geneve driver maintains list and hash table of Geneve devices.
Following patch removes the duplicate Geneve list and iterate
hash table when it is needed.
Signed-off-by: Pravin B Shelar <pshelar@...ira.com>
---
drivers/net/geneve.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index af50061..ad1cb45 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -39,7 +39,6 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
/* per-network namespace private data for this module */
struct geneve_net {
- struct list_head geneve_list;
struct hlist_head vni_list[VNI_HASH_SIZE];
struct list_head sock_list;
};
@@ -56,7 +55,6 @@ struct geneve_dev {
u8 ttl; /* TTL override */
u8 tos; /* TOS override */
struct sockaddr_in remote; /* IPv4 address for link partner */
- struct list_head next; /* geneve's per namespace list */
__be16 dst_port;
bool collect_md;
};
@@ -818,7 +816,6 @@ static int geneve_configure(struct net *net, struct net_device *dev,
if (err)
return err;
- list_add(&geneve->next, &gn->geneve_list);
hlist_add_head_rcu(&geneve->hlist, &gn->vni_list[hash]);
return 0;
}
@@ -864,7 +861,6 @@ static void geneve_dellink(struct net_device *dev, struct list_head *head)
if (!hlist_unhashed(&geneve->hlist))
hlist_del_rcu(&geneve->hlist);
- list_del(&geneve->next);
unregister_netdevice_queue(dev, head);
}
@@ -952,7 +948,6 @@ static __net_init int geneve_init_net(struct net *net)
struct geneve_net *gn = net_generic(net, geneve_net_id);
unsigned int h;
- INIT_LIST_HEAD(&gn->geneve_list);
INIT_LIST_HEAD(&gn->sock_list);
for (h = 0; h < VNI_HASH_SIZE; ++h)
@@ -964,8 +959,11 @@ static __net_init int geneve_init_net(struct net *net)
static void __net_exit geneve_exit_net(struct net *net)
{
struct geneve_net *gn = net_generic(net, geneve_net_id);
- struct geneve_dev *geneve, *next;
+ struct hlist_head *vni_list_head;
+ struct hlist_node *next;
struct net_device *dev, *aux;
+ struct geneve_dev *geneve;
+ unsigned int h;
LIST_HEAD(list);
rtnl_lock();
@@ -975,13 +973,19 @@ static void __net_exit geneve_exit_net(struct net *net)
if (dev->rtnl_link_ops == &geneve_link_ops)
unregister_netdevice_queue(dev, &list);
- /* now gather any other geneve devices that were created in this ns */
- list_for_each_entry_safe(geneve, next, &gn->geneve_list, next) {
- /* If geneve->dev is in the same netns, it was already added
- * to the list by the previous loop.
+ for (h = 0; h < VNI_HASH_SIZE; ++h) {
+ vni_list_head = &gn->vni_list[h];
+
+ /* now gather any other geneve devices that were created
+ * in this ns
*/
- if (!net_eq(dev_net(geneve->dev), net))
- unregister_netdevice_queue(geneve->dev, &list);
+ hlist_for_each_entry_safe(geneve, next, vni_list_head, hlist) {
+ /* If geneve->dev is in the same netns, it was
+ * already added to the list by the previous loop.
+ */
+ if (!net_eq(dev_net(geneve->dev), net))
+ unregister_netdevice_queue(geneve->dev, &list);
+ }
}
/* unregister the devices gathered above */
--
1.8.3.1
--
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