Commit a3d03eca authored Apr 13, 2009 by Zhaolei Committed by Ingo Molnar Apr 13, 2009

tracing: Fix power tracer header



Before patch:
  # tracer: power
  #
  #           TASK-PID    CPU#    TIMESTAMP  FUNCTION
  #              | |       |          |         |
  [  676.875865889] CSTATE: Going to C1 on cpu 0 for 0.005911463
  [  676.882938805] CSTATE: Going to C1 on cpu 0 for 0.104796532
  ...

After patch:
  # tracer: power
  #
  #   TIMESTAMP      STATE  EVENT
  #       |            |      |
  [  676.875865889] CSTATE: Going to C1 on cpu 0 for 0.005911463
  [  676.882938805] CSTATE: Going to C1 on cpu 0 for 0.104796532
  ...

v2: Use seq_puts instead of seq_printf

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <49E2E889.5000903@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 80a04d3f

kernel/trace/trace_power.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -186,6 +186,12 @@ static enum print_line_t power_print_line(struct trace_iterator *iter)
		return TRACE_TYPE_UNHANDLED;
		}

		static void power_print_header(struct seq_file *s)
		{
		seq_puts(s, "# TIMESTAMP STATE EVENT\n");
		seq_puts(s, "# \| \| \|\n");
		}

		static struct tracer power_tracer __read_mostly =
		{
		.name = "power",
		@@ -194,6 +200,7 @@ static struct tracer power_tracer __read_mostly =
		.stop = stop_power_trace,
		.reset = power_trace_reset,
		.print_line = power_print_line,
		.print_header = power_print_header,
		};

		static int init_power_trace(void)