Commit ee6e4d34 authored by Quentin Perret's avatar Quentin Perret Committed by Greg Kroah-Hartman
Browse files

tracing: Fix number of entries in trace header

commit 9e738215 upstream.

The following commit

  441dae8f ("tracing: Add support for display of tgid in trace output")

removed the call to print_event_info() from print_func_help_header_irq()
which results in the ftrace header not reporting the number of entries
written in the buffer. As this wasn't the original intent of the patch,
re-introduce the call to print_event_info() to restore the orginal
behaviour.

Link: http://lkml.kernel.org/r/20190214152950.4179-1-quentin.perret@arm.com

Acked-by: default avatarJoel Fernandes <joelaf@google.com>
Cc: stable@vger.kernel.org
Fixes: 441dae8f

 ("tracing: Add support for display of tgid in trace output")
Signed-off-by: default avatarQuentin Perret <quentin.perret@arm.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d783d3ce
......@@ -3381,6 +3381,8 @@ static void print_func_help_header_irq(struct trace_buffer *buf, struct seq_file
const char tgid_space[] = " ";
const char space[] = " ";
print_event_info(buf, m);
seq_printf(m, "# %s _-----=> irqs-off\n",
tgid ? tgid_space : space);
seq_printf(m, "# %s / _----=> need-resched\n",
......
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