Messages in this thread Patch in this message | | | Date | Wed, 21 Oct 2015 09:37:31 -0400 | From | Steven Rostedt <> | Subject | [for-next][PATCH 7/9] Documentation: ftrace: Module globbing usage |
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From: Dmitry Safonov <0x7f454c46@gmail.com>
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> --- Documentation/trace/ftrace.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index ef621d34ba5b..db18362c14f3 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 -- 2.6.1
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