| Date | Tue, 28 Jul 2015 18:35:36 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 6/9] x86/intel_rdt: Add support for cache bit mask management |
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On Wed, Jul 01, 2015 at 03:21:07PM -0700, Vikas Shivappa wrote: > +static inline bool cbm_is_contiguous(unsigned long var) > +{ > + unsigned long maxcbm = MAX_CBM_LENGTH; > + unsigned long first_bit, zero_bit; > + > + if (!var) > + return false; > + > + first_bit = find_next_bit(&var, maxcbm, 0);
We actually have: find_first_bit().
> + zero_bit = find_next_zero_bit(&var, maxcbm, first_bit); > + > + if (find_next_bit(&var, maxcbm, zero_bit) < maxcbm) > + return false; > + > + return true; > +}
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