diff --git a/mm/Kconfig b/mm/Kconfig
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+choice
+	prompt "Memory model"
+	default FLATMEM
+	default SPARSEMEM if ARCH_SPARSEMEM_DEFAULT
+	default DISCONTIGMEM if ARCH_DISCONTIGMEM_DEFAULT
+
+config FLATMEM
+	bool "Flat Memory"
+	depends on !ARCH_DISCONTIGMEM_ENABLE || ARCH_FLATMEM_ENABLE
+	help
+	  This option allows you to change some of the ways that
+	  Linux manages its memory internally.  Most users will
+	  only have one option here: FLATMEM.  This is normal
+	  and a correct option.
+
+	  If unsure, choose this option over any other.
+
+config DISCONTIGMEM
+	bool "Discontigious Memory"
+	depends on ARCH_DISCONTIGMEM_ENABLE
+	help
+	  If unsure, choose "Flat Memory" over this option.
+
+endchoice
+