On 9/18/2025 11:32 PM, Steven Rostedt wrote:
> On Thu, 18 Sep 2025 21:15:57 +0800
> Fuyu Zhao <[email protected]> wrote:
>
>> As for the reason not to unregister and register a new callback:
>> callbacks registered directly inside the kernel cannot be unregistered from
>> user space. From user space, we can only attach additional callbacks
>> with BPF programs, but can not remove or replace the ones already
>> registered in the kernel. Therefore, an override mechanism is needed.
>
> The fact that user space cannot unregister or override the current
> callbacks, to me is a feature and not a bug.
>
> -- Steve
I see, thank you for sharing your view — I’ll keep it in mind.
Sincerely,
Fuyu
