cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
We can't deal with the cpumask allocations which happen in atomic context (see arch/x86/kernel/apic/io_apic.c) on RT right now. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -812,7 +812,7 @@ config IOMMU_HELPER
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config MAXSMP
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bool "Enable Maximum number of SMP Processors and NUMA Nodes"
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depends on X86_64 && SMP && DEBUG_KERNEL
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select CPUMASK_OFFSTACK
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select CPUMASK_OFFSTACK if !PREEMPT_RT_FULL
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---help---
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Enable maximum number of CPUS and NUMA Nodes for this architecture.
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If unsure, say N.
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@ -357,6 +357,7 @@ config CHECK_SIGNATURE
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config CPUMASK_OFFSTACK
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bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
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depends on !PREEMPT_RT_FULL
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help
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Use dynamic allocation for cpumask_var_t, instead of putting
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them on the stack. This is a bit more expensive, but avoids
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