From 3a9da7655d2d5b7f790a370328cf093440c80496 Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Thu, 23 Jun 2005 00:07:42 -0700 Subject: [PATCH] create mm/Kconfig for arch-independent memory options With sparsemem being introduced, we need a central place for new memory-related .config options: mm/Kconfig. This allows us to remove many of the duplicated arch-specific options. The new option, CONFIG_FLATMEM, is there to enable us to detangle NUMA and DISCONTIGMEM. This is a requirement for sparsemem because sparsemem uses the NUMA code without the presence of DISCONTIGMEM. The sparsemem patches use CONFIG_FLATMEM in generic code, so this patch is a requirement before applying them. Almost all places that used to do '#ifndef CONFIG_DISCONTIGMEM' should use '#ifdef CONFIG_FLATMEM' instead. Signed-off-by: Andy Whitcroft Signed-off-by: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/Kconfig | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 mm/Kconfig (limited to 'mm/Kconfig') diff --git a/mm/Kconfig b/mm/Kconfig new file mode 100644 index 000000000000..69caa9d8674e --- /dev/null +++ b/mm/Kconfig @@ -0,0 +1,25 @@ +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 + -- cgit v1.2.3-55-g7522