From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935071AbbI2Qrf (ORCPT ); Tue, 29 Sep 2015 12:47:35 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:33790 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933477AbbI2QrU (ORCPT ); Tue, 29 Sep 2015 12:47:20 -0400 From: Dmitry Safonov <0x7f454c46@gmail.com> To: rostedt@goodmis.org Cc: mingo@redhat.com, corbet@lwn.net, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Safonov <0x7f454c46@gmail.com> Subject: [PATCH 5/5] Documentation: ftrace: module globbing usage Date: Tue, 29 Sep 2015 19:46:16 +0300 Message-Id: <1443545176-3215-5-git-send-email-0x7f454c46@gmail.com> X-Mailer: git-send-email 2.5.3 In-Reply-To: <1443545176-3215-1-git-send-email-0x7f454c46@gmail.com> References: <1443545176-3215-1-git-send-email-0x7f454c46@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.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