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SubjectRe: [PATCH] make jiffies wrap 5 min after boot
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Date
Anton Blanchard <anton@samba.org> writes:

> Hi,
>
> > +#define INITIAL_JIFFIES (0xffffffffUL & (unsigned long)(-300*HZ))
>
> In order to make 64bit arches wrap too, you might want to use -1UL here.
> Not that jiffies should wrap on a 64bit machine...

Seems somewhat pointless.

(2^64-1) / (1000 * 3600 * 24 * 365)
~584942417.35507203243911719939

I doubt any system ever will have an uptime of > 584 million years
(assuming HZ=1000) and if jiffies wrap will be the least of their
problems.

-Andi

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