Re: [PATCH v9 3/4] ring-buffer: Cap static ring buffer nr_pages

[Steven Rostedt]

On Fri, 4 Sep 2026 14:04:40 +0100
Vincent Donnefort <vdonnefort@xxxxxxxxxx> wrote:

> > If you want to add something, we could add to the beginning of this
> > function:
> > 
> > 	/* Prevent ridiculously small sizes */
> > 	if (size < PAGE_SIZE)
> > 		return NULL;
> > 
> > to shut up Sashiko about overflows :-p
> > 
> > -- Steve  
> 
> tracer_alloc_buffers() uses size of 1 for non-expanded buffers.
> 
> I'll test size just before 
> 
>   nr_pages = (size - sizeof(struct ring_buffer_cpu_meta)) /
>   	(subbuf_size + sizeof(int));
> 

Ack.

-- Steve