Re: [PATCH 7/9] ftrace, perf: Add support to use functiontracepoint in perf

[Peter Zijlstra]

On Mon, 2011-11-28 at 21:08 +0100, Peter Zijlstra wrote:
> > Is it really an issue that we shouldn't call the full blown register
> > instead? I'm not really understanding why this is a problem. Note, one
> > of the improvements to ftrace in the near future is to enable ftrace
> > without stop_machine. 
> 
> Yeah, but still not something you want to do during context switches,
> right? 

Also, that's x86, there's still archs that need stop_machine(), right?
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