From: Ingo Molnar <mingo@elte.hu>
Date: Tue, 10 Mar 2009 09:16:17 +0000 (+0100)
Subject: Merge branch 'x86/core' into tracing/ftrace
X-Git-Tag: v2.6.30-rc1~2^2~50
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8293dd6f86e759068ce918aa10ca9c5d6d711cd0;p=platform%2Fupstream%2Fkernel-adaptation-pc.git

Merge branch 'x86/core' into tracing/ftrace

Semantic merge:

  kernel/trace/trace_functions_graph.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

8293dd6f86e759068ce918aa10ca9c5d6d711cd0
diff --cc kernel/trace/trace_functions_graph.c
index 453ebd3,930c08e..35257be
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@@ -807,44 -642,18 +807,44 @@@ static void print_graph_headers(struct 
  
  	/* 2nd line */
  	seq_printf(s, "# ");
 +	if (tracer_flags.val & TRACE_GRAPH_PRINT_ABS_TIME)
 +		seq_printf(s, "      |         ");
  	if (tracer_flags.val & TRACE_GRAPH_PRINT_CPU)
 -		seq_printf(s, "|   ");
 +		seq_printf(s, "|  ");
  	if (tracer_flags.val & TRACE_GRAPH_PRINT_PROC)
 -		seq_printf(s, "|      |     ");
 -	if (tracer_flags.val & TRACE_GRAPH_PRINT_OVERHEAD) {
 -		seq_printf(s, "|        ");
 -		seq_printf(s, "|                   |   |   |   |\n");
 -	} else
 -		seq_printf(s, "    |               |   |   |   |\n");
 +		seq_printf(s, "  |    |        ");
 +	if (tracer_flags.val & TRACE_GRAPH_PRINT_DURATION)
 +		seq_printf(s, "   |   |      ");
 +	seq_printf(s, "               |   |   |   |\n");
  }
 +
 +static void graph_trace_open(struct trace_iterator *iter)
 +{
 +	/* pid on the last trace processed */
 +	pid_t *last_pid = alloc_percpu(pid_t);
 +	int cpu;
 +
 +	if (!last_pid)
 +		pr_warning("function graph tracer: not enough memory\n");
 +	else
 +		for_each_possible_cpu(cpu) {
 +			pid_t *pid = per_cpu_ptr(last_pid, cpu);
 +			*pid = -1;
 +		}
 +
 +	iter->private = last_pid;
 +}
 +
 +static void graph_trace_close(struct trace_iterator *iter)
 +{
- 	percpu_free(iter->private);
++	free_percpu(iter->private);
 +}
 +
  static struct tracer graph_trace __read_mostly = {
  	.name	     	= "function_graph",
 +	.open		= graph_trace_open,
 +	.close		= graph_trace_close,
 +	.wait_pipe	= poll_wait_pipe,
  	.init	     	= graph_trace_init,
  	.reset	     	= graph_trace_reset,
  	.print_line	= print_graph_function,