path: root/net/ipv4/af_inet.c
diff options
authorYafang Shao <laoar.shao@gmail.com>2017-12-20 11:12:51 +0800
committerDavid S. Miller <davem@davemloft.net>2017-12-20 14:00:25 -0500
commit563e0bb0dc74b3ca888e24f8c08f0239fe4016b0 (patch)
treefcba71aa1af1eb252e0314782660e28986eb77f8 /net/ipv4/af_inet.c
parenttcp: Export to userspace the TCP state names for the trace events (diff)
net: tracepoint: replace tcp_set_state tracepoint with inet_sock_set_state tracepoint
As sk_state is a common field for struct sock, so the state transition tracepoint should not be a TCP specific feature. Currently it traces all AF_INET state transition, so I rename this tracepoint to inet_sock_set_state tracepoint with some minor changes and move it into trace/events/sock.h. We dont need to create a file named trace/events/inet_sock.h for this one single tracepoint. Two helpers are introduced to trace sk_state transition - void inet_sk_state_store(struct sock *sk, int newstate); - void inet_sk_set_state(struct sock *sk, int state); As trace header should not be included in other header files, so they are defined in sock.c. The protocol such as SCTP maybe compiled as a ko, hence export inet_sk_set_state(). Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
1 files changed, 14 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index f00499a46927..bab98a4fedad 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -121,6 +121,7 @@
#include <net/l3mdev.h>
+#include <trace/events/sock.h>
/* The inetsw table contains everything that inet_create needs to
* build a new socket.
@@ -1220,6 +1221,19 @@ int inet_sk_rebuild_header(struct sock *sk)
+void inet_sk_set_state(struct sock *sk, int state)
+ trace_inet_sock_set_state(sk, sk->sk_state, state);
+ sk->sk_state = state;
+void inet_sk_state_store(struct sock *sk, int newstate)
+ trace_inet_sock_set_state(sk, sk->sk_state, newstate);
+ smp_store_release(&sk->sk_state, newstate);
struct sk_buff *inet_gso_segment(struct sk_buff *skb,
netdev_features_t features)