From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Tom Zanussi <tom.zanussi@linux.intel.com>,
Clark Williams <williams@redhat.com>,
Karim Yaghmour <karim.yaghmour@opersys.com>,
Brendan Gregg <bgregg@netflix.com>,
Joel Fernandes <joel@joelfernandes.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Yann Ylavic <ylavic.dev@gmail.com>,
linux-rt-users@vger.kernel.org
Subject: [PATCH v3 09/14] tracing: Allow histogram triggers to access ftrace internal events
Date: Wed, 16 May 2018 11:00:21 -0400 [thread overview]
Message-ID: <20180516150200.665458704@goodmis.org> (raw)
In-Reply-To: 20180516150012.135869655@goodmis.org
[-- Attachment #1: 0009-tracing-Allow-histogram-triggers-to-access-ftrace-in.patch --]
[-- Type: text/plain, Size: 948 bytes --]
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Now that trace_marker can have triggers, including a histogram triggers, the
onmatch() and onmax() access the trace event. To do so, the search routine
to find the event file needs to use the raw __find_event_file() that does
not filter out ftrace events.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
kernel/trace/trace_events_hist.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index b9061ed59bbd..046c716a6536 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2865,7 +2865,7 @@ static struct trace_event_file *event_file(struct trace_array *tr,
{
struct trace_event_file *file;
- file = find_event_file(tr, system, event_name);
+ file = __find_event_file(tr, system, event_name);
if (!file)
return ERR_PTR(-EINVAL);
--
2.17.0
next prev parent reply other threads:[~2018-05-16 15:00 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 15:00 [PATCH v3 00/14] tracing: Add triggers to trace_marker writes Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 01/14] tracing: Do not reference event data in post call triggers Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 02/14] tracing: Add __find_event_file() to find event files without restrictions Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 03/14] tracing: Have event_trace_init() called by trace_init_tracefs() Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 04/14] tracing: Add brackets in ftrace event dynamic arrays Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 05/14] tracing: Do not show filter file for ftrace internal events Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 06/14] tracing: Add trigger file for trace_markers tracefs/ftrace/print Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 07/14] tracing: Have zero size length in filter logic be full string Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 08/14] tracing: Prevent further users of zero size static arrays in trace events Steven Rostedt
2018-05-16 15:00 ` Steven Rostedt [this message]
2018-05-16 15:00 ` [PATCH v3 10/14] tracing: Document trace_marker triggers Steven Rostedt
2018-05-16 15:42 ` [PATCH v3.5 " Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 11/14] ftrace/selftest: Have the reset_trigger code be a bit more careful Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 12/14] ftrace/selftest: Fix reset_trigger() to handle triggers with filters Steven Rostedt
2018-05-16 15:00 ` [PATCH v3 13/14] tracing/selftest: Add selftests to test trace_marker histogram triggers Steven Rostedt
2018-05-23 14:13 ` Masami Hiramatsu
2018-05-25 18:07 ` Steven Rostedt
2018-05-25 21:12 ` Steven Rostedt
2018-05-25 21:13 ` Steven Rostedt
2018-05-27 16:32 ` Masami Hiramatsu
2018-05-29 1:20 ` Steven Rostedt
2018-05-30 23:09 ` Masami Hiramatsu
2018-05-16 15:00 ` [PATCH v3 14/14] tracing/selftest: Add test to test hist trigger between kernel event and trace_marker Steven Rostedt
2018-05-23 14:15 ` Masami Hiramatsu
2018-05-25 18:15 ` Steven Rostedt
2018-05-25 18:19 ` Steven Rostedt
2018-05-27 16:33 ` Masami Hiramatsu
2018-05-23 5:41 ` [PATCH v3 00/14] tracing: Add triggers to trace_marker writes Namhyung Kim
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