Messages in this thread | | | Date | Mon, 7 Apr 2014 22:34:51 -0700 | Subject | Re: [RFC PATCH] time: Fix truncation in jiffies_to_usecs() | From | Tony Luck <> |
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On Mon, Apr 7, 2014 at 3:25 PM, Tony Luck <tony.luck@intel.com> wrote:
> c) If not this ... then what? Separate routine to convert large numbers > of jiffies to usec/nsecs? Should we make the existing one barf when > handed a number that overflows?
Having thought about this a bit more - I'm leaning towards leaving jiffies_to_usecs() alone, but using it as a model for a from-scratch implementation of: u64 jiffies_to_nsecs(const unsigned long j) { }
This is what the uptime tracer actually needs - and there is only one user of jiffies_to_nsecs() to worry about.
-Tony
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