Messages in this thread | | | Date | Mon, 13 Dec 2021 10:28:14 +0100 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH] tracing: Account bottom half disabled sections. |
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On 2021-12-10 20:32:40 [-0500], Steven Rostedt wrote: > > @@ -4226,7 +4228,7 @@ static void print_func_help_header_irq(struct array_buffer *buf, struct seq_file > > > > seq_printf(m, "# %.*s _-----=> irqs-off\n", prec, space); > > seq_printf(m, "# %.*s / _----=> need-resched\n", prec, space); > > - seq_printf(m, "# %.*s| / _---=> hardirq/softirq\n", prec, space); > > + seq_printf(m, "# %.*s| / _---=> hardirq/softirq/BH-disabled\n", prec, space); > > So I went to update the documentation on this, and realized that this is > wrong. Really, we want this in the irqs-off section probably. > > Note, the above is to show we are running in a hardirq or softirq context. > But BH-disabled does not match that. Should this be with irqs-off being: > > d - irqs are disabled > b - BH is disabled? > D - irqs and BH is disabled?
We are not in hardirq/softirq/nmi but have simply BH disabled. Makes sense.
> -- Steve
Sebastian
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