linux-kernel - [tip:tracing/blktrace] blktrace: fix t

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Date:	Tue, 24 Mar 2009 12:12:46 GMT
From:	Li Zefan <lizf@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, hpa@...or.com,
	mingo@...hat.com, lizf@...fujitsu.com, jens.axboe@...cle.com,
	fweisbec@...il.com, rostedt@...dmis.org, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:tracing/blktrace] blktrace: fix t_error()

Commit-ID:  e0dc81bec0927fa0c8aabc521793161909eef7a5
Gitweb:     http://git.kernel.org/tip/e0dc81bec0927fa0c8aabc521793161909eef7a5
Author:     Li Zefan <lizf@...fujitsu.com>
AuthorDate: Tue, 24 Mar 2009 16:05:51 +0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 24 Mar 2009 13:09:00 +0100

blktrace: fix t_error()

Impact: fix error flag output

t_error() should return t->error but not t->sector.

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
Acked-by: Jens Axboe <jens.axboe@...cle.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
LKML-Reference: <49C8945F.5020802@...fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 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 9af4143..f69f8bd 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -968,7 +968,7 @@ static inline unsigned long long t_sector(const struct trace_entry *ent)
 
 static inline __u16 t_error(const struct trace_entry *ent)
 {
-	return te_blk_io_trace(ent)->sector;
+	return te_blk_io_trace(ent)->error;
 }
 
 static __u64 get_pdu_int(const struct trace_entry *ent)
--
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