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SubjectRe: [tip:perfcounters/urgent] x86: atomic64: Fix unclean type use in atomic64_xchg()

On Fri, 3 Jul 2009, tip-bot for Ingo Molnar wrote:
> Fix atomic64_xchg() to use __atomic64_read() instead.

Hmm. The whole __atomic64_read() thing should be dropped. Are there any
users? None of them should be valid, as Eric's numbers showed. It's
apparently better to start out with a random value rather than actually
trying to read it.


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