cpumask: Add CONFIG_CPUMASK_OFFSTACK



Impact: Add config option to enable code in cpumask.h

Currently it can be set if DEBUG_PER_CPU_MAPS, or set specifically by
an arch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

parent 320ab2b0

lib/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -157,4 +157,11 @@ config CHECK_SIGNATURE
		config HAVE_LMB
		boolean

		config CPUMASK_OFFSTACK
		bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
		help
		Use dynamic allocation for cpumask_var_t, instead of putting
		them on the stack. This is a bit more expensive, but avoids
		stack overflow.

		endmenu