From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753660AbZBQFOd (ORCPT ); Tue, 17 Feb 2009 00:14:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751676AbZBQFOH (ORCPT ); Tue, 17 Feb 2009 00:14:07 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.123]:33840 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751542AbZBQFOG (ORCPT ); Tue, 17 Feb 2009 00:14:06 -0500 Message-Id: <20090217051227.957864159@goodmis.org> User-Agent: quilt/0.46-1 Date: Tue, 17 Feb 2009 00:12:27 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Peter Zijlstra , Frederic Weisbecker , Arnaldo Carvalho de Melo Subject: [PATCH 00/15] [git pull] for tip/tracing/ftrace Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo, This is a patch series that offers a variety of features. The first is to add: #### all functions enabled #### to set_ftrace_filter when all functions will be traced when function tracing is on. The next is to add a :command: interface, and the module command: echo '*:mod:ext4' > set_ftrace_filter Will select all functions in the ext4 module. echo '!*write*:mod:ext4' > set_ftrace_filter will remove all functions with the characters 'write' and are in ext4. Next we extend the :command: interface as well as add a way to hook tracers to specific functions. Instead of tracing all functions the same, this patch series adds a hash to be able to trace different functions differently. I implement a 'traceon' and 'traceoff' to have a function start or stop tracing when it is hit. It also includes a counter for the number of times to implement the trace on/off. echo '*_lock:traceon:4' > set_ftrace_filter echo '*_unlock:traceoff:5' > set_ftrace_filter This will have all functions that end with _lock turn on tracing and all that end with _unlock disable it, 4 times each. The following patches are in: git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git branch: tip/tracing/ftrace Steven Rostedt (15): ftrace: state that all functions are enabled in set_ftrace_filter ftrace: add do_for_each_ftrace_rec and while_for_each_ftrace_rec ftrace: rename ftrace_match to ftrace_match_records ftrace: break up ftrace_match_records into smaller components ftrace: add module command function filter selection ftrace: enable filtering only when a function is filtered on ftrace: add command interface for function selection ftrace: convert ftrace_lock from a spinlock to mutex ftrace: consolidate mutexes ftrace: trace different functions with a different tracer ring-buffer: add tracing_is_on to test if ring buffer is enabled ftrace: add traceon traceoff commands to enable/disable the buffers ftrace: show selected functions in set_ftrace_filter ftrace: add pretty print to selected fuction traces ftrace: add pretty print function for traceon and traceoff hooks ---- include/linux/ftrace.h | 40 ++ include/linux/ring_buffer.h | 2 + kernel/trace/ftrace.c | 929 +++++++++++++++++++++++++++++++--------- kernel/trace/ring_buffer.c | 9 + kernel/trace/trace_functions.c | 163 +++++++ 5 files changed, 946 insertions(+), 197 deletions(-) --