Messages in this thread |  | | Date | Mon, 17 Feb 2003 15:23:00 +0100 (CET) | From | Tim Schmielau <> | Subject | Re: [PATCH *] use 64 bit jiffies |
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On Mon, 17 Feb 2003, Matti Aarnio wrote:
> This will store constants into jiffies_msb_flips: > ("1" for DEBUG_JIFFIESWRAP, "0" otherwise.) > Wouldn't zero be what will always be needed ?
No - this is exactly what is intended. Note that jiffies_msb_flips counts flips of the MSB of jiffies, i.e., it's LSB should always be equal to the MSB of jiffies. We use it as a measure of whether jiffies_msb_flips is still up to date - when the msb of jiffies flip, we have 2^31/HZ seconds to detect that in the timer routine.
Tim
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