Re: [PATCH v4 00/39] unwind, perf: sframe user space unwinding

[Steven Rostedt]

On Tue, 21 Jan 2025 18:30:52 -0800
Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:

> The interface is similar to {task,irq}_work.  The caller owns an
> unwind_work struct:
> 
>   struct unwind_work {
> 	struct callback_head		work;
> 	unwind_callback_t		func;
> 	int				pending;
>   };
> 
> For perf, struct unwind_work is embedded in struct perf_event.  For
> ftrace maybe it would live in task_struct?

Hmm, this is going to be difficult, as I don't want to add more to a task
struct as it's already too bloated as is. I'll have to think about this a bit.

-- Steve