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x86: enable MAXSMP

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Impact: activates new off-stack cpumask code on MAXSMP (non-default) x86 configs

Set MAXSMP to enable CONFIG_CPUMASK_OFFSTACK which moves cpumask's off
the stack (and in structs) when using cpumask_var_t.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hy>
This commit is contained in:
Mike Travis 2008-12-16 17:33:51 -08:00
parent c8cae544bb
commit 36f5101a60
1 changed files with 4 additions and 3 deletions
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7
arch/x86/Kconfig
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@ -591,16 +591,17 @@ config IOMMU_HELPER
config MAXSMP
bool "Configure Maximum number of SMP Processors and NUMA Nodes"
depends on X86_64 && SMP && BROKEN
depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
select CPUMASK_OFFSTACK
default n
help
Configure maximum number of CPUS and NUMA Nodes for this architecture.
If unsure, say N.
config NR_CPUS
int "Maximum number of CPUs (2-512)" if !MAXSMP
range 2 512
depends on SMP
int "Maximum number of CPUs" if SMP && !MAXSMP
range 2 512 if SMP && !MAXSMP
default "4096" if MAXSMP
default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
default "8"