Re: [RFC 4/4]x86: avoid tlbstate lock if no enough cpus

[Eric Dumazet]

Le mercredi 03 novembre 2010 Ã 15:06 +0800, Shaohua Li a Ãcrit :
> just don't want to include the non-present cpus here. I wonder why we
> haven't a variable to record online cpu number.

What prevents a 256 cpus machine, to have 8 online cpus that all use the
same TLB vector ?

(Max 32 vectors, so 8 cpus share each vector, settled at boot time)

Forget about 'online', and think 'possible' ;)



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