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authorNamhyung Kim <namhyung.kim@lge.com>2013-04-11 16:01:38 +0900
committerSteven Rostedt <rostedt@goodmis.org>2013-04-12 23:02:30 -0400
commit9f50afccfdc15d95d7331acddcb0f7703df089ae (patch)
tree348b898d53a1b4f14d9d03e11e5bbf5d561fc5f8 /kernel/trace
parent39e30cd1537937d3c00ef87e865324e981434e5b (diff)
tracing: Reset ftrace_graph_filter_enabled if count is zero
The ftrace_graph_count can be decreased with a "!" pattern, so that the enabled flag should be updated too. Link: http://lkml.kernel.org/r/1365663698-2413-1-git-send-email-namhyung@kernel.org Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: stable@vger.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ftrace.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index c9f31491009..9e319878250 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3792,7 +3792,8 @@ out:
if (fail)
return -EINVAL;
- ftrace_graph_filter_enabled = 1;
+ ftrace_graph_filter_enabled = !!(*idx);
+
return 0;
}