Re: [PATCH v4 1/3] perf: add PERF_RECORD_NAMESPACES to include namespaces related info

[Peter Zijlstra]

On Thu, Dec 22, 2016 at 08:21:23PM +1300, Eric W. Biederman wrote:
> 
> And please make the array the last item in the structure so that
> expanding or contracting it does not affect the ability to read the rest
> of the structure.

Sorry, sample_id must be last, because hysterical crud :/

(basically because that was the only way to add a field to records like
PERF_RECORD_MMAP which used the record length to determine the
filename[] length, yes I know, we won't ever do that again).