Re: [RFC] convert ftrace syscall tracer to TRACE_EVENT()

[David Wagner]

Mathieu Desnoyers  wrote:
> I would expect to use copy_string_from_user (for strings)
> and copy_from_user for structures, because without any strings
> (especially), the trace information become much less useful.

Why isn't this racey?

(Copying from user space twice can give you two different results.)
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