powerpc: Fix memory hotplug with sparse vmemmap

[linux-2.6-block.git] / mm / Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index 6cdd27043303e7473925bbc04778a43481dc2205..394838f489ebae1b9d00660af54ceac857538653 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -183,7 +183,7 @@ config MEMORY_HOTPLUG_SPARSE
 config MEMORY_HOTREMOVE
        bool "Allow for memory hot remove"
        select MEMORY_ISOLATION
-       select HAVE_BOOTMEM_INFO_NODE if X86_64
+       select HAVE_BOOTMEM_INFO_NODE if (X86_64 || PPC64)
        depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
        depends on MIGRATION
 
@@ -245,7 +245,7 @@ config COMPACTION
 config MIGRATION
        bool "Page migration"
        def_bool y
-       depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION || CMA
+       depends on (NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION || CMA) && MMU
        help
          Allows the migration of the physical location of pages of processes
          while the virtual addresses are not changed. This is useful in
@@ -480,7 +480,7 @@ config FRONTSWAP
 
 config CMA
        bool "Contiguous Memory Allocator"
-       depends on HAVE_MEMBLOCK
+       depends on HAVE_MEMBLOCK && MMU
        select MIGRATION
        select MEMORY_ISOLATION
        help