Messages in this thread |  | | Subject | Re: [PATCH 7/9] ftrace, perf: Add support to use function tracepoint in perf | | From | Peter Zijlstra <> | | Date | Mon, 28 Nov 2011 21:10:02 +0100 |
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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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