diff options
| -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 32ae1378f35c7..b87a19f0d5849 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 8f5b45615f7bf..5d88489ef2de3 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. |