[lttng-dev] Sync instrumentation to today's linux 3.8

[Mathieu Desnoyers]

* Francis Giraldeau (francis.giraldeau at gmail.com) wrote:
> To prepare instrumentation for the next linux release, here is the ticket I
> was working on. It's mostly straight forward.
> 
> http://redmine.dorsal.polymtl.ca/issues/431
> 
> There is one issue with ext4 includes. I had to copy fs/ext4/ext4.h and
> ext4_extent.h for the function ext4_ext_get_actual_len(). I added them to
> instrumentation/mainline/fs/ext4 directory. I'm not sure if it's the best
> solution.
> 
> Still testing to do, thought. BTW, is there a test setup for regression? I
> would like to verify that it doesn't break any supported kernel and I don't
> have the required setup.
> 
> With this, maybe lttng-modules 2.1 can target linux 3.8?

Please send the patch by email.

3.8 is still in rc stage. Removing ext4_ext_get_actual_len() seems like
a bad move from upstream Linux if it is needed in the instrumentation
headers. This should be fixed upstream rather than duplicated within our
own code.

Thanks,

Mathieu

> 
> Cheers,
> 
> Francis

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-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com