Re: [patch] SMP alternatives

From: Jeff Garzik
Date: Wed Nov 23 2005 - 16:46:34 EST


Andi Kleen wrote:
The idea was to turn LOCK on only if the process has any
shared writable mapping and num_online_cpus() > 0.

Yep. Though I presume you mean "> 1".

One hopes that num_online_cpus() never reaches zero during runtime ;-)

Jeff


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