Re: [tip:perfcounters/urgent] x86: atomic64: Fix unclean type usein atomic64_xchg()

[Linus Torvalds]

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.

		Linus
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