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    SubjectRe: [PATCH] only irq-safe atomic ops
    On Sat, Feb 23, 2002 at 02:40:58PM -0800, Andrew Morton wrote:
    > yodaiken@fsmlabs.com wrote:
    > >
    > > Is this part of some scheme to make the GPL support model actually
    > > pay?
    >
    > No, no, no. It's all the uncommented code which brings in the dollars.
    >
    > > c = smp_get_cpuid(); // disables preemption
    > >
    > > ...
    > > f(); // oops, me forgotee, this function also references cpuid
    > > ..
    > > x = ++local_cache[c]; // live dangerously
    > > smp_put_cpuid(); // G_d knows what that does now.
    > >
    >
    > preempt_disable() nests. It's not a problem.

    Ah, got the reference count already! Good progress.
    Is it irq safe yet?


    BTW: Robert, whats a good kernel version that you recommend with
    preemption patch? I want to rerun some tests.

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

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