LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
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 <joelaf@google.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	linux-rt-users@vger.kernel.org
Subject: [RFC][PATCH 09/10] tracing: Allow histogram triggers to access ftrace internal events
Date: Fri, 11 May 2018 15:49:36 -0400	[thread overview]
Message-ID: <20180511195341.318916085@goodmis.org> (raw)
In-Reply-To: <20180511194927.190877137@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

  parent reply	other threads:[~2018-05-11 19:54 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-11 19:49 [RFC][PATCH 00/10] tracing: Add triggers to trace_marker writes Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 01/10] tracing: Do not reference event data in post call triggers Steven Rostedt
2018-05-12 12:04   ` Masami Hiramatsu
2018-05-11 19:49 ` [RFC][PATCH 02/10] tracing: Add __find_event_file() to find event files without restrictions Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 03/10] tracing: Have event_trace_init() called by trace_init_tracefs() Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 04/10] tracing: Add brackets in ftrace event dynamic arrays Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 05/10] tracing: Do not show filter file for ftrace internal events Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 06/10] tracing: Add trigger file for trace_markers tracefs/ftrace/print Steven Rostedt
2018-05-14  3:13   ` Namhyung Kim
2018-05-14 15:04     ` Steven Rostedt
2018-05-16  7:49       ` Namhyung Kim
2018-05-16 10:37         ` Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 07/10] tracing: Have zero size length in filter logic be full string Steven Rostedt
2018-05-12 12:40   ` Masami Hiramatsu
2018-05-12 17:27     ` Steven Rostedt
2018-05-12 18:32   ` Yann Ylavic
2018-05-14  2:23     ` Namhyung Kim
2018-05-14 14:12     ` Steven Rostedt
2018-05-11 19:49 ` [RFC][PATCH 08/10] tracing: Prevent further users of zero size static arrays in trace events Steven Rostedt
2018-05-11 19:49 ` Steven Rostedt [this message]
2018-05-11 19:49 ` [RFC][PATCH 10/10] tracing: Document trace_marker triggers Steven Rostedt

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180511195341.318916085@goodmis.org \
    --to=rostedt@goodmis.org \
    --cc=akpm@linux-foundation.org \
    --cc=bgregg@netflix.com \
    --cc=joelaf@google.com \
    --cc=karim.yaghmour@opersys.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rt-users@vger.kernel.org \
    --cc=mhiramat@kernel.org \
    --cc=mingo@kernel.org \
    --cc=namhyung@kernel.org \
    --cc=tglx@linutronix.de \
    --cc=tom.zanussi@linux.intel.com \
    --cc=williams@redhat.com \
    --subject='Re: [RFC][PATCH 09/10] tracing: Allow histogram triggers to access ftrace internal events' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).