Re: [PATCH] Simplified scalable cpu bitmasks

From: Ingo Molnar (mingo@elte.hu)
Date: Mon Aug 12 2002 - 04:26:20 EST

i'd suggest to introduce one more helper define:

        #define BITS_TO_LONG(bits) \
                (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)

this IMO simplifies some of the initializers, eg. the all-1 cpu-mask:

        #define CPU_MASK_ALL \
                { [0 ... BITS_TO_LONG(NR_CPUS)-1] = ~0UL }

    Ingo

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