linux-kernel - [PATCH 3/4] vmscan: convert mm_vmscan_lru_isolate to DEFINE

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Date:	Mon, 26 Jul 2010 12:05:13 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Nishimura Daisuke <d-nishimura@....biglobe.ne.jp>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: [PATCH 3/4] vmscan: convert mm_vmscan_lru_isolate to DEFINE_EVENT

Mel Gorman recently added some vmscan tracepoints. Unfortunately
they are covered only global reclaim. But we want to trace memcg
reclaim too.

Thus, this patch convert them to DEFINE_TRACE macro. it help to
reuse tracepoint definition for other similar usage (i.e. memcg).
This patch have no functionally change.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
---
 include/trace/events/vmscan.h |   17 ++++++++++++++++-
 1 files changed, 16 insertions(+), 1 deletions(-)

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index c35e905..b97a3db 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -152,7 +152,7 @@ DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_re
 );
 
 
-TRACE_EVENT(mm_vmscan_lru_isolate,
+DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
 
 	TP_PROTO(int order,
 		unsigned long nr_requested,
@@ -198,6 +198,21 @@ TRACE_EVENT(mm_vmscan_lru_isolate,
 		__entry->nr_lumpy_failed)
 );
 
+DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_lru_isolate,
+
+	TP_PROTO(int order,
+		unsigned long nr_requested,
+		unsigned long nr_scanned,
+		unsigned long nr_taken,
+		unsigned long nr_lumpy_taken,
+		unsigned long nr_lumpy_dirty,
+		unsigned long nr_lumpy_failed,
+		int isolate_mode),
+
+	TP_ARGS(order, nr_requested, nr_scanned, nr_taken, nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed, isolate_mode)
+
+);
+
 TRACE_EVENT(mm_vmscan_writepage,
 
 	TP_PROTO(struct page *page,
-- 
1.6.5.2



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