Re: [RFC PATCH] tracing: tprobe-events: Register tracepoint when enable tprobe event

[Steven Rostedt]

On Mon, 17 Mar 2025 17:03:16 +0900
"Masami Hiramatsu (Google)" <mhiramat@xxxxxxxxxx> wrote:

> From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
> 
> As same as fprobe, register tracepoint stub function only when enabling
> tprobe events. The major changes are introducing a list of
> tracepoint_user and its lock, and tprobe_event_module_nb, which is
> another module notifier for module loading/unloading.  By spliting the
> lock from event_mutex and a module notifier for trace_fprobe, it
> solved AB-BA lock dependency issue between event_mutex and
> tracepoint_module_list_mutex.
> 
> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
> ---
>  kernel/trace/trace_fprobe.c |  382 +++++++++++++++++++++++++------------------
>  1 file changed, 218 insertions(+), 164 deletions(-)

Is this patch still needed? It doesn't apply cleanly.

-- Steve