On Sun, May 01, 2005 at 01:45:37PM -0400, Arjan van de Ven wrote:
> > +
> > +#if defined(CONFIG_X86) || defined(CONFIG_X86_64)
> > +# define HAVE_MONOTONIC
> > +# define TIMER_FREQ 1000000000ULL
>
> this looks wrong!
>
> does this work with HZ=100 ?
> also there is a TSC config option which you want to use most likely
> instead of CONFIG_X86 (and x86-64 has CONFIG_X86 defined too)
It is right, though. monotonic_clock() is defined as returning
nanoseconds, not a value based on HZ. It's supported on x86 and x86-64,
hence using CONFIG_X86 to check. Someday, John will get it implemented
for the other platforms, and we'll have less mess in hangcheck-timer.c.
He already thinks that he should have the prototype in timer.h or so (so
I don't have to extern declare it), but he hasn't gotten around to it
yet.
Joel
--
Life's Little Instruction Book #30
"Never buy a house without a fireplace."
Joel Becker
Senior Member of Technical Staff
Oracle
E-mail: [email protected]
Phone: (650) 506-8127
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