• Yafang Shao's avatar
    net: tracepoint: replace tcp_set_state tracepoint with inet_sock_set_state tracepoint · 563e0bb0
    Yafang Shao authored
    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: default avatarYafang Shao <laoar.shao@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    563e0bb0
af_inet.c 48.7 KB