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authorNamhyung Kim <namhyung@kernel.org>2014-06-12 18:23:51 +0200
committerSteven Rostedt <rostedt@goodmis.org>2014-07-01 13:13:44 +0200
commit280d1429b6a67432ead24fb68a504b4c90c3d96d (patch)
tree495ad86b5d1ce1fbc4cf00d4d60afc5d472d3d6b /kernel/trace/ftrace.c
parenttracing: Add ftrace_graph_notrace boot parameter (diff)
downloadlinux-280d1429b6a67432ead24fb68a504b4c90c3d96d.tar.xz
linux-280d1429b6a67432ead24fb68a504b4c90c3d96d.zip
tracing: Improve message of empty set_graph_notrace file
When there's no entry in set_graph_notrace, it'll print below message #### all functions enabled #### While this is technically correct, it's better to print like below: #### no functions disabled #### Link: http://lkml.kernel.org/p/1402590233-22321-3-git-send-email-namhyung@kernel.org Reported-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
-rw-r--r--kernel/trace/ftrace.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 17885a27281c..ee245c0659a6 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4089,7 +4089,12 @@ static int g_show(struct seq_file *m, void *v)
return 0;
if (ptr == (unsigned long *)1) {
- seq_printf(m, "#### all functions enabled ####\n");
+ struct ftrace_graph_data *fgd = m->private;
+
+ if (fgd->table == ftrace_graph_funcs)
+ seq_printf(m, "#### all functions enabled ####\n");
+ else
+ seq_printf(m, "#### no functions disabled ####\n");
return 0;
}