linux-kernel - [PATCH 1/2] blktrace: fix output of unknown events

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Message-ID: <49D3236D.3090705@cn.fujitsu.com>
Date:	Wed, 01 Apr 2009 16:18:53 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Jens Axboe <jens.axboe@...cle.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] blktrace: fix output of unknown events

Not all events are pc (packet command) events. An event is a pc
event only if it has BLK_TC_PC bit set.

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 kernel/trace/blktrace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 947c5b3..464a6e5 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1181,7 +1181,7 @@ static enum print_line_t print_one_line(struct trace_iterator *iter,
 	}
 
 	if (unlikely(what == 0 || what >= ARRAY_SIZE(what2act)))
-		ret = trace_seq_printf(s, "Bad pc action %x\n", what);
+		ret = trace_seq_printf(s, "Unknown action %x\n", what);
 	else {
 		ret = log_action(iter, what2act[what].act[long_act]);
 		if (ret)
-- 
1.5.4.rc3


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