Re: [PATCH net-next v3 2/2] trace: tcp: Add tracepoint for tcp_sendmsg_locked()

[David Ahern]

On 4/8/25 12:32 PM, Breno Leitao wrote:
> Add a tracepoint to monitor TCP send operations, enabling detailed
> visibility into TCP message transmission.
> 
> Create a new tracepoint within the tcp_sendmsg_locked function,
> capturing traditional fields along with size_goal, which indicates the
> optimal data size for a single TCP segment. Additionally, a reference to
> the struct sock sk is passed, allowing direct access for BPF programs.
> The implementation is largely based on David's patch[1] and suggestions.
> 
> Link: https://lore.kernel.org/all/70168c8f-bf52-4279-b4c4-be64527aa1ac@xxxxxxxxxx/ [1]
> Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx>
> ---
>  include/trace/events/tcp.h | 24 ++++++++++++++++++++++++
>  kernel/bpf/btf.c           |  1 +
>  net/ipv4/tcp.c             |  2 ++
>  3 files changed, 27 insertions(+)
> 

Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>