From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755215AbbLXObU (ORCPT ); Thu, 24 Dec 2015 09:31:20 -0500 Received: from mail.kernel.org ([198.145.29.136]:49383 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753375AbbLXO3H (ORCPT ); Thu, 24 Dec 2015 09:29:07 -0500 Message-Id: <20151224142900.590946693@goodmis.org> User-Agent: quilt/0.61-1 Date: Thu, 24 Dec 2015 09:27:59 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Denis Kirjanov Subject: [for-next][PATCH 07/13] tracing: Introduce TRACE_EVENT_FN_COND macro References: <20151224142752.534947674@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline; filename=0007-tracing-Introduce-TRACE_EVENT_FN_COND-macro.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Denis Kirjanov TRACE_EVENT_FN can't be used in some circumstances like invoking trace functions from offlined CPU due to RCU usage. This patch adds the TRACE_EVENT_FN_COND macro to make such trace points conditional. Link: http://lkml.kernel.org/r/1450124286-4822-1-git-send-email-kda@linux-powerpc.org Signed-off-by: Denis Kirjanov Signed-off-by: Steven Rostedt --- include/linux/tracepoint.h | 4 ++++ include/trace/define_trace.h | 6 ++++++ include/trace/trace_events.h | 6 ++++++ 3 files changed, 16 insertions(+) diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 696a339c592c..45b3fcf7dd3c 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -493,6 +493,10 @@ extern void syscall_unregfunc(void); #define TRACE_EVENT_FN(name, proto, args, struct, \ assign, print, reg, unreg) \ DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) +#define TRACE_EVENT_FN_COND(name, proto, args, cond, struct, \ + assign, print, reg, unreg) \ + DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ + PARAMS(args), PARAMS(cond)) #define TRACE_EVENT_CONDITION(name, proto, args, cond, \ struct, assign, print) \ DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h index 2d8639ea64d5..6e3945f64102 100644 --- a/include/trace/define_trace.h +++ b/include/trace/define_trace.h @@ -40,6 +40,11 @@ assign, print, reg, unreg) \ DEFINE_TRACE_FN(name, reg, unreg) +#undef TRACE_EVENT_FN_COND +#define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \ + assign, print, reg, unreg) \ + DEFINE_TRACE_FN(name, reg, unreg) + #undef DEFINE_EVENT #define DEFINE_EVENT(template, name, proto, args) \ DEFINE_TRACE(name) @@ -93,6 +98,7 @@ #undef TRACE_EVENT #undef TRACE_EVENT_FN +#undef TRACE_EVENT_FN_COND #undef TRACE_EVENT_CONDITION #undef DECLARE_EVENT_CLASS #undef DEFINE_EVENT diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h index de996cf61053..170c93bbdbb7 100644 --- a/include/trace/trace_events.h +++ b/include/trace/trace_events.h @@ -123,6 +123,12 @@ TRACE_MAKE_SYSTEM_STR(); TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \ PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \ +#undef TRACE_EVENT_FN_COND +#define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \ + assign, print, reg, unreg) \ + TRACE_EVENT_CONDITION(name, PARAMS(proto), PARAMS(args), PARAMS(cond), \ + PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \ + #undef TRACE_EVENT_FLAGS #define TRACE_EVENT_FLAGS(name, value) \ __TRACE_EVENT_FLAGS(name, value) -- 2.6.2