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Re: [dm-devel] [PATCH v2] block: rename trace_block_remap to trace_block_bio_remap



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


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