Messages in this thread Patch in this message | | | Date | Fri, 4 Aug 2006 07:14:03 -0600 | From | Keith Mannthey <> | Subject | [PATCH 3/10] hot-add-mem x86_64: Kconfig changes |
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From: Keith Mannthey <kmannth@us.ibm.com>
Create Kconfig namespace for MEMORY_HOTPLUG_RESERVE and MEMORY_HOTPLUG_SPARSE. This is needed to create a disticiton between the 2 paths. Selecting the high level opiton of MEMORY_HOTPLUG will get you MEMORY_HOTPLUG_SPARSE if you have sparsemem enabled or MEMORY_HOTPLUG_RESERVE if you are x86_64 with discontig and ACPI numa support.
Signed-off-by: Keith Mannthey<kmannth@us.ibm.com> --- arch/x86_64/Kconfig | 4 ++++ mm/Kconfig | 7 ++++++- 2 files changed, 10 insertions(+), 1 deletion(-)
diff -urN linux-2.6.18-rc3-stock/arch/x86_64/Kconfig linux-2.6.17/arch/x86_64/Kconfig --- linux-2.6.18-rc3-stock/arch/x86_64/Kconfig 2006-07-31 21:08:04.000000000 -0400 +++ linux-2.6.17/arch/x86_64/Kconfig 2006-07-31 21:24:54.000000000 -0400 @@ -349,6 +349,10 @@ source "mm/Kconfig" +config MEMORY_HOTPLUG_RESERVE + def_bool y + depends on (MEMORY_HOTPLUG && DISCONTIGMEM) + config HAVE_ARCH_EARLY_PFN_TO_NID def_bool y depends on NUMA diff -urN linux-2.6.18-rc3-stock/mm/Kconfig linux-2.6.17/mm/Kconfig --- linux-2.6.18-rc3-stock/mm/Kconfig 2006-07-31 21:08:04.000000000 -0400 +++ linux-2.6.17/mm/Kconfig 2006-07-31 21:25:18.000000000 -0400 @@ -115,12 +115,17 @@ # eventually, we can have this option just 'select SPARSEMEM' config MEMORY_HOTPLUG bool "Allow for memory hot-add" - depends on SPARSEMEM && HOTPLUG && !SOFTWARE_SUSPEND && ARCH_ENABLE_MEMORY_HOTPLUG + depends on SPARSEMEM || X86_64_ACPI_NUMA + depends on HOTPLUG && !SOFTWARE_SUSPEND && ARCH_ENABLE_MEMORY_HOTPLUG depends on (IA64 || X86 || PPC64) comment "Memory hotplug is currently incompatible with Software Suspend" depends on SPARSEMEM && HOTPLUG && SOFTWARE_SUSPEND +config MEMORY_HOTPLUG_SPARSE + def_bool y + depends on SPARSEMEM && MEMORY_HOTPLUG + # Heavily threaded applications may benefit from splitting the mm-wide # page_table_lock, so that faults on different parts of the user address # space can be handled with less contention: split it at this NR_CPUS. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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