From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e5.ny.us.ibm.com (8.12.11/8.12.11) with ESMTP id j34HoBCe024826 for ; Mon, 4 Apr 2005 13:50:11 -0400 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay02.pok.ibm.com (8.12.10/NCO/VER6.6) with ESMTP id j34HoBoc094672 for ; Mon, 4 Apr 2005 13:50:11 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11/8.12.11) with ESMTP id j34HoB6S026143 for ; Mon, 4 Apr 2005 12:50:11 -0500 Subject: [PATCH 1/4] create mm/Kconfig for arch-independent memory options From: Dave Hansen Date: Mon, 04 Apr 2005 10:50:09 -0700 Message-Id: Sender: owner-linux-mm@kvack.org Return-Path: To: akpm@osdl.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Dave Hansen , apw@shadowen.org List-ID: 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 --- memhotplug-dave/mm/Kconfig | 25 +++++++++++++++++++++++++ 1 files changed, 25 insertions(+) diff -puN mm/Kconfig~A6-mm-Kconfig mm/Kconfig --- memhotplug/mm/Kconfig~A6-mm-Kconfig 2005-04-04 09:04:48.000000000 -0700 +++ memhotplug-dave/mm/Kconfig 2005-04-04 10:15:23.000000000 -0700 @@ -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 + _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org