Linus Torvalds wrote:
If you calculate the expected timeout from the time-of-day in the caller,
your drift not only goes away, but you'll actually be able to handle things like "oops, the machine is under load so I missed an event".
Does mainline have a high precision monotonic wallclock that is not affected by time-of-day changes? Something like "nano/mico seconds since boot"?
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