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

From: Steven Rostedt

Date: Wed Feb 04 2026 - 20:42:32 EST


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.

-- Steve


> }
> break;
> }