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| author | Octavian Purdila <opurdila@ixiacom.com> | 2009-12-26 11:51:04 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-26 20:43:57 -0800 |
| commit | 6d2e3ea284463d5ab34e9cf2a41d0b8627b95d02 (patch) | |
| tree | 86ee780b06adfe388ac64dd66ece598be69b29ec /net/llc/llc_conn.c | |
| parent | 0f7b67dd9e1192976f5e5a78934c7a339ff7c45f (diff) | |
| download | linux-stable-6d2e3ea284463d5ab34e9cf2a41d0b8627b95d02.tar.gz linux-stable-6d2e3ea284463d5ab34e9cf2a41d0b8627b95d02.tar.bz2 linux-stable-6d2e3ea284463d5ab34e9cf2a41d0b8627b95d02.zip | |
llc: use a device based hash table to speed up multicast delivery
This patch adds a per SAP device based hash table to solve the
multicast delivery scalability issue when we have large number of
interfaces and a large number of sockets bound to the same SAP.
Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/llc/llc_conn.c')
| -rw-r--r-- | net/llc/llc_conn.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index 77bb3816655e..10cdfe2db830 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -682,10 +682,15 @@ static int llc_find_offset(int state, int ev_type) */ void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk) { + struct llc_sock *llc = llc_sk(sk); + struct hlist_head *dev_hb = llc_sk_dev_hash(sap, llc->dev->ifindex); + llc_sap_hold(sap); - spin_lock_bh(&sap->sk_lock); llc_sk(sk)->sap = sap; + + spin_lock_bh(&sap->sk_lock); sk_nulls_add_node_rcu(sk, &sap->sk_list); + hlist_add_head(&llc->dev_hash_node, dev_hb); spin_unlock_bh(&sap->sk_lock); } @@ -699,8 +704,11 @@ void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk) */ void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk) { + struct llc_sock *llc = llc_sk(sk); + spin_lock_bh(&sap->sk_lock); sk_nulls_del_node_init_rcu(sk); + hlist_del(&llc->dev_hash_node); spin_unlock_bh(&sap->sk_lock); llc_sap_put(sap); } |