Re: [PATCH v6 1/4] tracing: Reset last_boot_info if ring buffer is reset

[Steven Rostedt]

On Fri, 6 Feb 2026 22:50:51 +0900
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> wrote:

> On Wed, 4 Feb 2026 20:40:49 -0500
> Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> 
> > On Sun,  1 Feb 2026 12:29:07 +0900
> > "Masami Hiramatsu (Google)" <mhiramat@xxxxxxxxxx> wrote:
> >   
> > > @@ -8036,6 +8042,7 @@ tracing_snapshot_write(struct file *filp, const char __user *ubuf, size_t cnt,
> > >  				tracing_reset_online_cpus(&tr->max_buffer);
> > >  			else
> > >  				tracing_reset_cpu(&tr->max_buffer, iter->cpu_file);
> > > +			update_last_data_if_empty(tr);  
> > 
> > Is this needed? Memory mapped buffers (which the persistent ring buffer
> > is) do not have snapshot buffers.  
> 
> Yeah, I did this just for consistency. But it is better to just leave
> the comment here.
> 

I have code to move all the snapshot buffers into its own file. I'm
going to drop this one as I think leaving it makes it more confusing.

-- Steve