linux-kernel - [PATCH 2/9] block: block_bio_complete tracepoint was missing

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Message-Id: <1326220106-5765-3-git-send-email-tj@kernel.org>
Date:	Tue, 10 Jan 2012 10:28:19 -0800
From:	Tejun Heo <tj@...nel.org>
To:	axboe@...nel.dk, mingo@...hat.com, rostedt@...dmis.org,
	fweisbec@...il.com, teravest@...gle.com, slavapestov@...gle.com,
	ctalbott@...gle.com, dhsharp@...gle.com
Cc:	linux-kernel@...r.kernel.org, winget@...gle.com,
	namhyung@...il.com, Tejun Heo <tj@...nel.org>
Subject: [PATCH 2/9] block: block_bio_complete tracepoint was missing

block_bio_complete tracepoint was defined but not invoked anywhere.
Fix it.

-tj: This will generate duplicate BLK_TA_COMPLETEs.  Namhyung is
     working on proper solution.

DO_NOT_APPLY
Cc: Namhyung Kim <namhyung@...il.com>
---
 fs/bio.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/fs/bio.c b/fs/bio.c
index b1fe82c..96548da 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1447,6 +1447,9 @@ void bio_endio(struct bio *bio, int error)
 	else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
 		error = -EIO;
 
+	if (bio->bi_bdev)
+		trace_block_bio_complete(bdev_get_queue(bio->bi_bdev),
+					 bio, error);
 	if (bio->bi_end_io)
 		bio->bi_end_io(bio, error);
 }
-- 
1.7.3.1

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