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| author | Eric Dumazet <edumazet@google.com> | 2013-10-18 14:43:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-19 19:14:14 -0400 |
| commit | b917eb155c56bbb766140b406979820e719e3f55 (patch) | |
| tree | e693e13064475ef6a942188a1f43a2c8aefce689 /net/ipv6/ip6_offload.c | |
| parent | ea58c18062f04d483d0b4bea51b1e7219b519255 (diff) | |
| download | blackbird-op-linux-b917eb155c56bbb766140b406979820e719e3f55.tar.gz blackbird-op-linux-b917eb155c56bbb766140b406979820e719e3f55.zip | |
ipv6: gso: remove redundant locking
ipv6_gso_send_check() and ipv6_gso_segment() are called by
skb_mac_gso_segment() under rcu lock, no need to use
rcu_read_lock() / rcu_read_unlock()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_offload.c')
| -rw-r--r-- | net/ipv6/ip6_offload.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index d82de7228100..b405fba91c72 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -66,7 +66,6 @@ static int ipv6_gso_send_check(struct sk_buff *skb) __skb_pull(skb, sizeof(*ipv6h)); err = -EPROTONOSUPPORT; - rcu_read_lock(); ops = rcu_dereference(inet6_offloads[ ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]); @@ -74,7 +73,6 @@ static int ipv6_gso_send_check(struct sk_buff *skb) skb_reset_transport_header(skb); err = ops->callbacks.gso_send_check(skb); } - rcu_read_unlock(); out: return err; @@ -113,13 +111,12 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, segs = ERR_PTR(-EPROTONOSUPPORT); proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr); - rcu_read_lock(); + ops = rcu_dereference(inet6_offloads[proto]); if (likely(ops && ops->callbacks.gso_segment)) { skb_reset_transport_header(skb); segs = ops->callbacks.gso_segment(skb, features); } - rcu_read_unlock(); if (IS_ERR(segs)) goto out; |
