linux-kernel - [tip:perf/core] tracing: Convert some jbd2 events to DEFINE

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Date:	Thu, 26 Nov 2009 08:44:00 GMT
From:	tip-bot for Li Zefan <lizf@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	lizf@...fujitsu.com, tytso@....edu, fweisbec@...il.com,
	rostedt@...dmis.org, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perf/core] tracing: Convert some jbd2 events to DEFINE_EVENT

Commit-ID:  071688f36e7eba3e37b2fc48e35bfdab99b80b4d
Gitweb:     http://git.kernel.org/tip/071688f36e7eba3e37b2fc48e35bfdab99b80b4d
Author:     Li Zefan <lizf@...fujitsu.com>
AuthorDate: Thu, 26 Nov 2009 15:06:55 +0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 26 Nov 2009 09:14:04 +0100

tracing: Convert some jbd2 events to DEFINE_EVENT

Use DECLARE_EVENT_CLASS to remove duplicate code:

   text    data     bss     dec     hex filename
  34903    1693     448   37044    90b4 fs/jbd2/journal.o.old
  31931    1693     416   34040    84f8 fs/jbd2/journal.o

Four events are converted:

  jbd2_commit: jbd2_start_commit,
               jbd2_commit_{locking, flushing, logging}

No change in functionality.

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
Cc: Theodore Ts'o <tytso@....edu>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
LKML-Reference: <4B0E290F.7030909@...fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/trace/events/jbd2.h |   63 +++++++-----------------------------------
 1 files changed, 11 insertions(+), 52 deletions(-)

diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index 3c60b75..96b370a 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -30,7 +30,7 @@ TRACE_EVENT(jbd2_checkpoint,
 		  jbd2_dev_to_name(__entry->dev), __entry->result)
 );
 
-TRACE_EVENT(jbd2_start_commit,
+DECLARE_EVENT_CLASS(jbd2_commit,
 
 	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
 
@@ -53,73 +53,32 @@ TRACE_EVENT(jbd2_start_commit,
 		  __entry->sync_commit)
 );
 
-TRACE_EVENT(jbd2_commit_locking,
+DEFINE_EVENT(jbd2_commit, jbd2_start_commit,
 
 	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
 
-	TP_ARGS(journal, commit_transaction),
-
-	TP_STRUCT__entry(
-		__field(	dev_t,	dev			)
-		__field(	char,	sync_commit		  )
-		__field(	int,	transaction		  )
-	),
-
-	TP_fast_assign(
-		__entry->dev		= journal->j_fs_dev->bd_dev;
-		__entry->sync_commit = commit_transaction->t_synchronous_commit;
-		__entry->transaction	= commit_transaction->t_tid;
-	),
-
-	TP_printk("dev %s transaction %d sync %d",
-		  jbd2_dev_to_name(__entry->dev), __entry->transaction,
-		  __entry->sync_commit)
+	TP_ARGS(journal, commit_transaction)
 );
 
-TRACE_EVENT(jbd2_commit_flushing,
+DEFINE_EVENT(jbd2_commit, jbd2_commit_locking,
 
 	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
 
-	TP_ARGS(journal, commit_transaction),
-
-	TP_STRUCT__entry(
-		__field(	dev_t,	dev			)
-		__field(	char,	sync_commit		  )
-		__field(	int,	transaction		  )
-	),
-
-	TP_fast_assign(
-		__entry->dev		= journal->j_fs_dev->bd_dev;
-		__entry->sync_commit = commit_transaction->t_synchronous_commit;
-		__entry->transaction	= commit_transaction->t_tid;
-	),
-
-	TP_printk("dev %s transaction %d sync %d",
-		  jbd2_dev_to_name(__entry->dev), __entry->transaction,
-		  __entry->sync_commit)
+	TP_ARGS(journal, commit_transaction)
 );
 
-TRACE_EVENT(jbd2_commit_logging,
+DEFINE_EVENT(jbd2_commit, jbd2_commit_flushing,
 
 	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
 
-	TP_ARGS(journal, commit_transaction),
+	TP_ARGS(journal, commit_transaction)
+);
 
-	TP_STRUCT__entry(
-		__field(	dev_t,	dev			)
-		__field(	char,	sync_commit		  )
-		__field(	int,	transaction		  )
-	),
+DEFINE_EVENT(jbd2_commit, jbd2_commit_logging,
 
-	TP_fast_assign(
-		__entry->dev		= journal->j_fs_dev->bd_dev;
-		__entry->sync_commit = commit_transaction->t_synchronous_commit;
-		__entry->transaction	= commit_transaction->t_tid;
-	),
+	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
 
-	TP_printk("dev %s transaction %d sync %d",
-		  jbd2_dev_to_name(__entry->dev), __entry->transaction,
-		  __entry->sync_commit)
+	TP_ARGS(journal, commit_transaction)
 );
 
 TRACE_EVENT(jbd2_end_commit,
--
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