From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932344Ab0JEI53 (ORCPT ); Tue, 5 Oct 2010 04:57:29 -0400 Received: from hera.kernel.org ([140.211.167.34]:35610 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932206Ab0JEI52 (ORCPT ); Tue, 5 Oct 2010 04:57:28 -0400 Message-ID: <4CAAE8E3.5020207@kernel.org> Date: Tue, 05 Oct 2010 10:59:15 +0200 From: Tejun Heo User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.9) Gecko/20100915 Lightning/1.0b2 Thunderbird/3.1.4 MIME-Version: 1.0 To: Frederic Weisbecker CC: LKML , Steven Rostedt , Ingo Molnar Subject: [PATCH wq#for-next 1/2] workqueue: prepare for more tracepoints References: <1285861140-5948-1-git-send-regression-fweisbec@gmail.com> <4CA9E8E0.7040503@kernel.org> <20101004155410.GA5381@nowhere> In-Reply-To: <20101004155410.GA5381@nowhere> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Tue, 05 Oct 2010 08:57:13 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Define workqueue_work event class and use it for workqueue_execute_end trace point. Also, move trace/events/workqueue.h include downwards such that all struct definitions are visible to it. This is to prepare for more tracepoints and doesn't cause any functional change. Signed-off-by: Tejun Heo Cc: Frederic Weisbecker --- I'll route these two through wq tree. Thank you. include/trace/events/workqueue.h | 32 +++++++++++++++++++------------- kernel/workqueue.c | 6 +++--- 2 files changed, 22 insertions(+), 16 deletions(-) diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h index 49682d7..ec9d724 100644 --- a/include/trace/events/workqueue.h +++ b/include/trace/events/workqueue.h @@ -7,13 +7,7 @@ #include #include -/** - * workqueue_execute_start - called immediately before the workqueue callback - * @work: pointer to struct work_struct - * - * Allows to track workqueue execution. - */ -TRACE_EVENT(workqueue_execute_start, +DECLARE_EVENT_CLASS(workqueue_work, TP_PROTO(struct work_struct *work), @@ -21,24 +15,22 @@ TRACE_EVENT(workqueue_execute_start, TP_STRUCT__entry( __field( void *, work ) - __field( void *, function) ), TP_fast_assign( __entry->work = work; - __entry->function = work->func; ), - TP_printk("work struct %p: function %pf", __entry->work, __entry->function) + TP_printk("work struct %p", __entry->work) ); /** - * workqueue_execute_end - called immediately before the workqueue callback + * workqueue_execute_start - called immediately before the workqueue callback * @work: pointer to struct work_struct * * Allows to track workqueue execution. */ -TRACE_EVENT(workqueue_execute_end, +TRACE_EVENT(workqueue_execute_start, TP_PROTO(struct work_struct *work), @@ -46,15 +38,29 @@ TRACE_EVENT(workqueue_execute_end, TP_STRUCT__entry( __field( void *, work ) + __field( void *, function) ), TP_fast_assign( __entry->work = work; + __entry->function = work->func; ), - TP_printk("work struct %p", __entry->work) + TP_printk("work struct %p: function %pf", __entry->work, __entry->function) ); +/** + * workqueue_execute_end - called immediately before the workqueue callback + * @work: pointer to struct work_struct + * + * Allows to track workqueue execution. + */ +DEFINE_EVENT(workqueue_work, workqueue_execute_end, + + TP_PROTO(struct work_struct *work), + + TP_ARGS(work) +); #endif /* _TRACE_WORKQUEUE_H */ diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 19e4bc1..026f778 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -42,9 +42,6 @@ #include #include -#define CREATE_TRACE_POINTS -#include - #include "workqueue_sched.h" enum { @@ -257,6 +254,9 @@ EXPORT_SYMBOL_GPL(system_long_wq); EXPORT_SYMBOL_GPL(system_nrt_wq); EXPORT_SYMBOL_GPL(system_unbound_wq); +#define CREATE_TRACE_POINTS +#include + #define for_each_busy_worker(worker, i, pos, gcwq) \ for (i = 0; i < BUSY_WORKER_HASH_SIZE; i++) \ hlist_for_each_entry(worker, pos, &gcwq->busy_hash[i], hentry) -- 1.7.1