Re: [patch] convert aio event reap to use atomic-op instead of spin_lock

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On Tue, 10 Apr 2007 16:53:53 -0700 (PDT) [email protected] (Ken Chen) wrote:

> +	} while (head != cmpxchg(&ring->head, head, head + 1));

A hasty grep indicates that only 14 out of 23 architectures implement
cmpxchg().
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