x86: enable MAXSMP

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>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d99eeb7915c6..1fd44352f27c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -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"