percpu data for non-existant cpus

From: Jack Steiner <>
Date: 2003-11-04 11:55:24
It was neccessary in 2.4 to allocate cpu_data areas for
non-existent cpus. I forget where, but some generic
initialization code expected to be able to reference cpu_data 
for all cpus up to NR_CPUS.

Does 2.6 have the same requirement or can I allocate cpu_data
areas only for cpus that exist or might exist (cpu_possible()).


Jack Steiner (          651-683-5302
Principal Engineer                      SGI - Silicon Graphics, Inc.

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Received on Mon Nov 3 19:56:04 2003

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