From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130518021647.199116841@goodmis.org> Date: Fri, 17 May 2013 22:16:31 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Frederic Weisbecker , Ingo Molnar , Namhyung Kim , Namhyung Kim Subject: [ 034/136 ] tracing: Reset ftrace_graph_filter_enabled if count is zero References: <20130518021557.139113314@goodmis.org> Content-Disposition: inline; filename=0034-tracing-Reset-ftrace_graph_filter_enabled-if-count-i.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.4 stable review patch. If anyone has any objections, please let me know. ------------------ From: Namhyung Kim [ Upstream commit 9f50afccfdc15d95d7331acddcb0f7703df089ae ] 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 Cc: Ingo Molnar Cc: Namhyung Kim Cc: stable@vger.kernel.org Signed-off-by: Namhyung Kim Signed-off-by: Steven Rostedt --- kernel/trace/ftrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index f8cef7f..09657d7 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3579,7 +3579,8 @@ out: if (fail) return -EINVAL; - ftrace_graph_filter_enabled = 1; + ftrace_graph_filter_enabled = !!(*idx); + return 0; } -- 1.7.10.4