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Documentation: ftrace: Module globbing usage

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Link: http://lkml.kernel.org/r/1443545176-3215-5-git-send-email-0x7f454c46@gmail.com

Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Dmitry Safonov 2015-09-29 19:46:16 +03:00 committed by Steven Rostedt
parent 0b507e1ed1
commit b86d9371be
1 changed files with 17 additions and 0 deletions
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Documentation/trace/ftrace.txt
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@ -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