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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2015-09-30 01:06:50 +0200
committerSteven Rostedt <rostedt@goodmis.org>2015-09-30 21:22:42 +0200
commit55577204154c7a95c6bce4cb185366d638b238b5 (patch)
tree9cbfd57e11d2ee00c015980459fe978b99a8d597 /kernel/trace/trace_functions_graph.c
parenttracing: Remove access to trace_flags in trace_printk.c (diff)
downloadlinux-55577204154c7a95c6bce4cb185366d638b238b5.tar.xz
linux-55577204154c7a95c6bce4cb185366d638b238b5.zip
tracing: Move sleep-time and graph-time options out of the core trace_flags
The sleep-time and graph-time options are only for the function graph tracer and are not used by anything else. As tracer options are now visible when the tracer is not activated, its better to move the function graph specific tracer options into the function graph tracer. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
-rw-r--r--kernel/trace/trace_functions_graph.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index ca98445782ac..86e45c2658e4 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -83,13 +83,18 @@ static struct tracer_opt trace_opts[] = {
{ TRACER_OPT(funcgraph-irqs, TRACE_GRAPH_PRINT_IRQS) },
/* Display function name after trailing } */
{ TRACER_OPT(funcgraph-tail, TRACE_GRAPH_PRINT_TAIL) },
+ /* Include sleep time (scheduled out) between entry and return */
+ { TRACER_OPT(sleep-time, TRACE_GRAPH_SLEEP_TIME) },
+ /* Include time within nested functions */
+ { TRACER_OPT(graph-time, TRACE_GRAPH_GRAPH_TIME) },
{ } /* Empty entry */
};
static struct tracer_flags tracer_flags = {
/* Don't display overruns, proc, or tail by default */
.val = TRACE_GRAPH_PRINT_CPU | TRACE_GRAPH_PRINT_OVERHEAD |
- TRACE_GRAPH_PRINT_DURATION | TRACE_GRAPH_PRINT_IRQS,
+ TRACE_GRAPH_PRINT_DURATION | TRACE_GRAPH_PRINT_IRQS |
+ TRACE_GRAPH_SLEEP_TIME | TRACE_GRAPH_GRAPH_TIME,
.opts = trace_opts
};
@@ -1362,6 +1367,12 @@ func_graph_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
if (bit == TRACE_GRAPH_PRINT_IRQS)
ftrace_graph_skip_irqs = !set;
+ if (bit == TRACE_GRAPH_SLEEP_TIME)
+ ftrace_graph_sleep_time_control(set);
+
+ if (bit == TRACE_GRAPH_GRAPH_TIME)
+ ftrace_graph_graph_time_control(set);
+
return 0;
}