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    SubjectRe: [PATCH] only irq-safe atomic ops
    On Sat, Feb 23, 2002 at 03:56:36PM -0800, Andrew Morton wrote:
    > Robert Love wrote:
    > >
    > For the situation Victor described:
    >
    > const int cpu = smp_get_cpuid();
    >
    > per_cpu_array_foo[cpu] = per_cpu_array_bar[cpu] +
    > per_cpu_array_zot[cpu];
    >
    > smp_put_cpuid();
    >
    > It's a nice interface - it says "pin down and return the current
    > CPU ID".

    Go for it! Only 900 odd calls to smp_processor_id in the kernel
    source last time I checked.


    --
    ---------------------------------------------------------
    Victor Yodaiken
    Finite State Machine Labs: The RTLinux Company.
    www.fsmlabs.com www.rtlinux.com

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