Re: [PATCH 2/2] x86, perf: Optimize stack walk user accesses

[Andi Kleen]

> Perf can call this function from !interrupt context (imagine a
> tracepoint or other software event), should we therefore not add a
> pagefault_disable()/enable() pair around the entire while() loop?

That's true. I'll add the pagefault_disable/enable.

-Andi
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