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Message-Id: <1443545176-3215-5-git-send-email-0x7f454c46@gmail.com>
Date: Tue, 29 Sep 2015 19:46:16 +0300
From: Dmitry Safonov <0x7f454c46@...il.com>
To: rostedt@...dmis.org
Cc: mingo@...hat.com, corbet@....net, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, Dmitry Safonov <0x7f454c46@...il.com>
Subject: [PATCH 5/5] Documentation: ftrace: module globbing usage
Signed-off-by: Dmitry Safonov <0x7f454c46@...il.com>
---
Documentation/trace/ftrace.txt | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index ef621d3..db18362 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -2437,6 +2437,23 @@ The following commands are supported:
echo '!writeback*:mod:ext3' >> set_ftrace_filter
+ Mod command supports module globbing. Disable tracing for all
+ functions except a specific module:
+
+ echo '!*:mod:!ext3' >> set_ftrace_filter
+
+ Disable tracing for all modules, but still trace kernel:
+
+ echo '!*:mod:*' >> set_ftrace_filter
+
+ Enable filter only for kernel:
+
+ echo '*write*:mod:!*' >> set_ftrace_filter
+
+ Enable filter for module globbing:
+
+ echo '*write*:mod:*snd*' >> set_ftrace_filter
+
- traceon/traceoff
These commands turn tracing on and off when the specified
functions are hit. The parameter determines how many times the
--
2.5.3
--
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