From 44df75e629106efcada087cead6c3f33ed6bcc60 Mon Sep 17 00:00:00 2001 From: Matt Tolentino Date: Tue, 17 Jan 2006 07:03:41 +0100 Subject: [PATCH] x86_64: add x86-64 support for memory hot-add Add x86-64 specific memory hot-add functions, Kconfig options, and runtime kernel page table update functions to make hot-add usable on x86-64 machines. Also, fixup the nefarious conditional locking and exports pointed out by Andi. Tested on Intel and IBM x86-64 memory hot-add capable systems. Signed-off-by: Matt Tolentino Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/Kconfig | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch/x86_64/Kconfig') diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 787feff0e8a5..2f9deca31cc9 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -305,7 +305,11 @@ config ARCH_DISCONTIGMEM_DEFAULT config ARCH_SPARSEMEM_ENABLE def_bool y - depends on NUMA + depends on (NUMA || EXPERIMENTAL) + +config ARCH_MEMORY_PROBE + def_bool y + depends on MEMORY_HOTPLUG config ARCH_FLATMEM_ENABLE def_bool y @@ -315,6 +319,7 @@ source "mm/Kconfig" config HAVE_ARCH_EARLY_PFN_TO_NID def_bool y + depends on NUMA config NR_CPUS int "Maximum number of CPUs (2-256)" -- cgit v1.2.1