Re: [PATCH bpf-next v4 2/4] bpf: Expose bpf_get_socket_cookie to tracing programs
From: KP Singh
Date: Wed Dec 09 2020 - 10:24:58 EST
On Wed, Dec 9, 2020 at 2:29 PM Florent Revest <revest@xxxxxxxxxxxx> wrote:
>
> This needs two new helpers, one that works in a sleepable context (using
> sock_gen_cookie which disables/enables preemption) and one that does not
> (for performance reasons). Both take a struct sock pointer and need to
> check it for NULLness.
>
> This helper could also be useful to other BPF program types such as LSM.
>
> Signed-off-by: Florent Revest <revest@xxxxxxxxxxxx>
Acked-by: KP Singh <kpsingh@xxxxxxxxxx>