perf: ftrace: Allow set graph depth by '--graph-opts'

This is to have a consistent view of all graph tracer options.
The original option '--graph-depth' is marked as deprecated.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: http://lore.kernel.org/lkml/20200808023141.14227-15-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt
index 6fa927e..0821663 100644 (file)
--- a/tools/perf/Documentation/perf-ftrace.txt
+++ b/tools/perf/Documentation/perf-ftrace.txt
@@ -98,16 +98,13 @@ OPTIONS
        specify multiple functions. It will be passed to 'set_graph_notrace'
        in tracefs.
 
--D::
---graph-depth=::
-       Set max depth for function graph tracer to follow
-
 --graph-opts::
        List of options allowed to set:
          nosleep-time - Measure on-CPU time only for function_graph tracer.
          noirqs       - Ignore functions that happen inside interrupt.
          verbose      - Show process names, PIDs, timestamps, etc.
          thresh=<n>   - Setup trace duration threshold in microseconds.
+         depth=<n>    - Set max depth for function graph tracer to follow.
 
 SEE ALSO
 --------

diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index ca61f8b..bc3b35d 100644 (file)
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -751,6 +751,7 @@ static int parse_graph_tracer_opts(const struct option *opt,
                { .name = "noirqs",             .value_ptr = &ftrace->graph_noirqs },
                { .name = "verbose",            .value_ptr = &ftrace->graph_verbose },
                { .name = "thresh",             .value_ptr = &ftrace->graph_thresh },
+               { .name = "depth",              .value_ptr = &ftrace->graph_depth },
                { .name = NULL, }
        };
 
@@ -819,10 +820,8 @@ int cmd_ftrace(int argc, const char **argv)
                     parse_filter_func),
        OPT_CALLBACK('g', "nograph-funcs", &ftrace.nograph_funcs, "func",
                     "Set nograph filter on given functions", parse_filter_func),
-       OPT_INTEGER('D', "graph-depth", &ftrace.graph_depth,
-                   "Max depth for function graph tracer"),
        OPT_CALLBACK(0, "graph-opts", &ftrace, "options",
-                    "graph tracer options, available options: nosleep-time,noirqs,verbose,thresh=<n>",
+                    "graph tracer options, available options: nosleep-time,noirqs,verbose,thresh=<n>,depth=<n>",
                     parse_graph_tracer_opts),
        OPT_CALLBACK('m', "buffer-size", &ftrace.percpu_buffer_size, "size",
                     "size of per cpu buffer", parse_buffer_size),