Messages in this thread | | | Date | Sat, 23 Feb 2002 15:48:06 -0700 | From | yodaiken@fsmlabs ... | Subject | Re: [PATCH] only irq-safe atomic ops |
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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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