On 04/27/2010 06:28 AM, Marcelo Tosatti wrote:
>> + last = atomic64_read(&last_value);
>> + do {
>> + if (ret < last)
>> + return last;
>> + last = atomic64_cmpxchg(&last_value, last, ret);
>> + } while (unlikely(last != ret));
>>
> Wraparound?
>
If the units nanoseconds, it's good for ~500,000 years of uptime.
J
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