diff options
| author | Duan Jiong <duanj.fnst@cn.fujitsu.com> | 2014-08-01 14:00:36 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-08-02 15:27:35 -0700 |
| commit | 188b1210f3d633e27dc97309c97315ce484122ec (patch) | |
| tree | f3931c6bf20fa3794d1fbc3ae43de5a28bb88a73 /net/ipv4/icmp.c | |
| parent | e339756c9995648eecd015391f66baf2fd251fec (diff) | |
| download | linux-stable-188b1210f3d633e27dc97309c97315ce484122ec.tar.gz linux-stable-188b1210f3d633e27dc97309c97315ce484122ec.tar.bz2 linux-stable-188b1210f3d633e27dc97309c97315ce484122ec.zip | |
ipv4: remove nested rcu_read_lock/unlock
ip_local_deliver_finish() already have a rcu_read_lock/unlock, so
the rcu_read_lock/unlock is unnecessary.
See the stack below:
ip_local_deliver_finish
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->icmp_rcv
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->icmp_socket_deliver
Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/icmp.c')
| -rw-r--r-- | net/ipv4/icmp.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 092400ef88d0..ea7d4afe8205 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -670,11 +670,9 @@ static void icmp_socket_deliver(struct sk_buff *skb, u32 info) raw_icmp_error(skb, protocol, info); - rcu_read_lock(); ipprot = rcu_dereference(inet_protos[protocol]); if (ipprot && ipprot->err_handler) ipprot->err_handler(skb, info); - rcu_read_unlock(); } static bool icmp_tag_validation(int proto) |