From: Jens Axboe <axboe@kernel.dk>
To: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: device-mapper development <dm-devel@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Frank Mayhar <fmayhar@google.com>,
Mike Snitzer <snitzer@redhat.com>,
Mikulas Patocka <mpatocka@redhat.com>
Subject: Re: [PATCH] block: Add nr_bios to block_rq_remap tracepoint
Date: Sat, 21 Sep 2013 13:58:14 -0600 [thread overview]
Message-ID: <20130921195814.GE2312@kernel.dk> (raw)
In-Reply-To: <523835AD.1030300@ce.jp.nec.com>
On Tue, Sep 17 2013, Jun'ichi Nomura wrote:
> Adding the number of bios in a remapped request to 'block_rq_remap'
> tracepoint.
>
> Request remapper clones bios in a request to track the completion
> status of each bio. So the number of bios can be useful information
> for investigation.
>
> Related discussions:
> http://www.redhat.com/archives/dm-devel/2013-August/msg00084.html
> http://www.redhat.com/archives/dm-devel/2013-September/msg00024.html
>
> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
> Acked-by: Mike Snitzer <snitzer@redhat.com>
> Cc: Jens Axboe <axboe@kernel.dk>
Thanks, added.
--
Jens Axboe
prev parent reply other threads:[~2013-09-21 19:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-17 10:57 [PATCH] block: Add nr_bios to block_rq_remap tracepoint Jun'ichi Nomura
2013-09-21 19:58 ` Jens Axboe [this message]
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