perf ftrace: Factor out function write_tracing_file_int() (68faab0f) · Commits · 戴 / test

We will reuse this function later. Signed-off-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/20200808023141.14227-4-changbin.du@gmail.com Signed-off-by:

tools/perf/builtin-ftrace.c

+12 −5

Original line number	Diff line number	Diff line
		@@ -169,6 +169,17 @@ out:
		return ret;
		}

		static int write_tracing_file_int(const char *name, int value)
		{
		char buf[16];

		snprintf(buf, sizeof(buf), "%d", value);
		if (write_tracing_file(name, buf) < 0)
		return -1;

		return 0;
		}

		static int reset_tracing_cpu(void);
		static void reset_tracing_filters(void);

		@@ -299,8 +310,6 @@ static void reset_tracing_filters(void)

		static int set_tracing_depth(struct perf_ftrace *ftrace)
		{
		char buf[16];

		if (ftrace->graph_depth == 0)
		return 0;

		@@ -309,9 +318,7 @@ static int set_tracing_depth(struct perf_ftrace *ftrace)
		return -1;
		}

		snprintf(buf, sizeof(buf), "%d", ftrace->graph_depth);

		if (write_tracing_file("max_graph_depth", buf) < 0)
		if (write_tracing_file_int("max_graph_depth", ftrace->graph_depth) < 0)
		return -1;

		return 0;