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| author | Keith Mannthey <kmannth@us.ibm.com> | 2006-09-30 23:27:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-01 00:39:18 -0700 |
| commit | ec69acbb1191df671ff8e07c8e146619a5c53f70 (patch) | |
| tree | 431aea50c8b614686543342c114ce36465b9dbc2 | |
| parent | f28c5edc06ecd8068b38b7662ad19f4d20d741af (diff) | |
| download | lwn-ec69acbb1191df671ff8e07c8e146619a5c53f70.tar.gz lwn-ec69acbb1191df671ff8e07c8e146619a5c53f70.zip | |
[PATCH] hot-add-mem x86_64: Kconfig changes
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>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/x86_64/Kconfig | 4 | ||||
| -rw-r--r-- | mm/Kconfig | 7 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 32ae1378f35c..b87a19f0d584 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -367,6 +367,10 @@ config ARCH_FLATMEM_ENABLE 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 --git a/mm/Kconfig b/mm/Kconfig index 8f5b45615f7b..5d88489ef2de 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -115,12 +115,17 @@ config SPARSEMEM_EXTREME # 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. |