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From: Mike Snitzer <snitzer@redhat.com>
To: jaxboe@fusionio.com
Cc: device-mapper development <dm-devel@redhat.com>,
	Jun'ichi Nomura <j-nomura@ce.jp.nec.com>,
	Alasdair G Kergon <agk@redhat.com>,
	Li Zefan <lizf@cn.fujitsu.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] block: rename trace_block_remap to trace_block_bio_remap
Date: Mon, 15 Nov 2010 16:34:44 -0500	[thread overview]
Message-ID: <20101115213444.GA25705@redhat.com> (raw)
In-Reply-To: <20101115205815.GA25567@redhat.com>

On Mon, Nov 15 2010 at  3:58pm -0500,
Mike Snitzer <snitzer@redhat.com> wrote:

> Hi Jens,
> 
> This may have slipped through while you were traveling?
> 
> Patch is also available here:
> https://patchwork.kernel.org/patch/300552/
> 
> Not sure if this change is concerning on a kABI level?

To be clear: that concern/question was prompted from having taken a
quick glance at lwn's kernel summit "KS2010: ABI status for tracepoints"
coverage: http://lwn.net/Articles/412685/

But in that article it clearly states:
"there are to be no stable tracepoints in drivers or filesystems".

Not sure where that leaves tracepoints for the block layer.  Anyway,
seems tracepoint kABI is likely a concern for the future (not the
immediate future).

So this change would be nice to get in before there is a new tracepoint
kABI-aware sheriff in town.

Mike

  reply	other threads:[~2010-11-15 21:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-18 15:13 [PATCH 2/3] block: Rename trace_block_remap to trace_block_bio_remap Jun'ichi Nomura
2009-09-18 16:13 ` Daniel Walker
2009-09-19 15:30 ` Jun'ichi Nomura
2010-11-03 21:50   ` [PATCH v2] block: rename " Mike Snitzer
2010-11-15 20:58     ` Mike Snitzer
2010-11-15 21:34       ` Mike Snitzer [this message]
2010-11-16 11:51         ` Jens Axboe

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