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authorDuan Jiong <duanj.fnst@cn.fujitsu.com>2014-08-01 14:00:36 +0800
committerDavid S. Miller <davem@davemloft.net>2014-08-02 15:27:35 -0700
commit188b1210f3d633e27dc97309c97315ce484122ec (patch)
treef3931c6bf20fa3794d1fbc3ae43de5a28bb88a73 /net
parente339756c9995648eecd015391f66baf2fd251fec (diff)
downloadlinux-188b1210f3d633e27dc97309c97315ce484122ec.tar.gz
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 | | ->icmp_rcv | | ->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')
-rw-r--r--net/ipv4/icmp.c2
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)