Re: [thiscpuops upgrade 10/10] Lockless (and preemptless) fastpathsfor slub

[Christoph Lameter]

On Wed, 24 Nov 2010, Eric Dumazet wrote:

> Hmm, this only works for power of two NR_CPUS, or else one cpu 'tid'
> could wrap on another cpu tid.

Hmm... That essentially like using a bitfield then.

> I suggest using 4096  (or roundup_pow_of_two(CONFIG_NR_CPUS))

There could be machines with 64k cpus soon. So I guess roundupp2 it will
have to be.


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