All of lore.kernel.org
 help / color / mirror / Atom feed
From: Hannes Reinecke <hare@suse.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Tejun Heo <tj@kernel.org>, Christoph Hellwig <hch@lst.de>,
	linux-kernel@vger.kernel.org, Hannes Reinecke <hare@suse.de>
Subject: [PATCH] block: misplaced rq_complete tracepoint
Date: Wed,  1 Oct 2014 14:32:31 +0200	[thread overview]
Message-ID: <1412166751-73709-1-git-send-email-hare@suse.de> (raw)

The rq_complete tracepoint was never issued for empty requests,
causing the resulting blktrace information to never show any
completion for those request.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 block/blk-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 3aff9f5..eb05abf 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2414,11 +2414,11 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
 {
 	int total_bytes;
 
+	trace_block_rq_complete(req->q, req, nr_bytes);
+
 	if (!req->bio)
 		return false;
 
-	trace_block_rq_complete(req->q, req, nr_bytes);
-
 	/*
 	 * For fs requests, rq is just carrier of independent bio's
 	 * and each partial completion should be handled separately.
-- 
1.8.5.2


             reply	other threads:[~2014-10-01 12:32 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-01 12:32 Hannes Reinecke [this message]
2014-10-01 13:54 ` [PATCH] block: misplaced rq_complete tracepoint Tejun Heo
2014-10-01 14:18 ` Jens Axboe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1412166751-73709-1-git-send-email-hare@suse.de \
    --to=hare@suse.de \
    --cc=axboe@kernel.dk \
    --cc=hch@lst.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=tj@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.