> After thinking about it further, there is one problem with when that is
> avoided with timeout: if the system time is changed between the timeout
> calculation and the time the kernel calculates the jiffies offset, the
> process could be delayed much longer than desired (and fixing this case
> is hard enough that it should be avoided in typical code). Tradeoffs...
Now if we had a constant monotonic source of time--say 64-bit nanoseconds since
boot--this wouldn't be a problem.
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