Messages in this thread | | | Date | Sat, 23 Feb 2002 14:40:58 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] only irq-safe atomic ops |
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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.
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