Re: [PATCH v2 00/27] function_graph: Allow multiple users for function graph tracing

[Steven Rostedt]

On Sat, 01 Jun 2024 23:37:44 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> hanges since v1: https://lore.kernel.org/linux-trace-kernel/20240525023652.903909489@xxxxxxxxxxx/
> 
> - Added ftrace helpers to allow an ftrace_ops to be a subop of a
>   managing ftrace_op. That is, the managing ftrace_op will enable
>   functions based off of the filters of the subops beneath it.
>   This could be extended for kprobes and fprobes, as the managing
>   ops does the multiplexing for the subops. This allows for only
>   adding a single callback to ftrace but have multiple ops that
>   represent many users.
> 
> - At the end, I added static branch which also speeds up the
>   code quite a bit.

Also added:

- A couple of kselftests.

-- Steve