From: Namhyung Kim <namhyung@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Namhyung Kim <namhyung.kim@lge.com>
Subject: [PATCH v2 2/2] tracing: Reset ftrace_graph_filter_enabled if count is zero
Date: Thu, 11 Apr 2013 16:01:38 +0900 [thread overview]
Message-ID: <1365663698-2413-1-git-send-email-namhyung@kernel.org> (raw)
In-Reply-To: <1365663302-2170-2-git-send-email-namhyung@kernel.org>
From: Namhyung Kim <namhyung.kim@lge.com>
The ftrace_graph_count can be decreased with a "!" pattern, so that
the enabled flag should be updated too.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
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 be2bcb7ab2f7..daf8df20b764 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3779,7 +3779,8 @@ out:
if (fail)
return -EINVAL;
- ftrace_graph_filter_enabled = 1;
+ ftrace_graph_filter_enabled = !!(*idx);
+
return 0;
}
--
1.7.11.7
next prev parent reply other threads:[~2013-04-11 7:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-11 6:55 [PATCH 1/2] tracing: Fix possible NULL pointer dereferences Namhyung Kim
2013-04-11 6:55 ` [PATCH 2/2] tracing: Reset ftrace_graph_filter_enabled if count is zero Namhyung Kim
2013-04-11 7:01 ` Namhyung Kim [this message]
2013-04-12 18:13 ` [PATCH v2 " 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=1365663698-2413-1-git-send-email-namhyung@kernel.org \
--to=namhyung@kernel.org \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=namhyung.kim@lge.com \
--cc=rostedt@goodmis.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).