Merge to Fedora kernel-2.6.18-1.2257_FC5 patched with stable patch-2.6.18.5-vs2.0...

[linux-2.6.git] / mm / Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index 67b3f74..5511d6c 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -115,7 +115,7 @@ 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
+       depends on SPARSEMEM && HOTPLUG && !SOFTWARE_SUSPEND && ARCH_ENABLE_MEMORY_HOTPLUG
 
 comment "Memory hotplug is currently incompatible with Software Suspend"
        depends on SPARSEMEM && HOTPLUG && SOFTWARE_SUSPEND
@@ -126,22 +126,32 @@ comment "Memory hotplug is currently incompatible with Software Suspend"
 # Default to 4 for wider testing, though 8 might be more appropriate.
 # ARM's adjust_pte (unused if VIPT) depends on mm-wide page_table_lock.
 # PA-RISC 7xxx's spinlock_t would enlarge struct page from 32 to 44 bytes.
+# XEN on x86 architecture uses the mapping field on pagetable pages to store a
+# pointer to the destructor. This conflicts with pte_lock_deinit().
 #
 config SPLIT_PTLOCK_CPUS
        int
        default "4096" if ARM && !CPU_CACHE_VIPT
        default "4096" if PARISC && !PA20
-       default "4096"
+       default "4096" if X86_XEN || X86_64_XEN
+       default "4096" if !64BIT
+       default "4"
 
 #
 # support for page migration
 #
 config MIGRATION
        bool "Page migration"
-       def_bool y if NUMA
-       depends on SWAP && NUMA
+       def_bool y
+       depends on NUMA
        help
          Allows the migration of the physical location of pages of processes
          while the virtual addresses are not changed. This is useful for
          example on NUMA systems to put pages nearer to the processors accessing
          the page.
+
+config RESOURCES_64BIT
+       bool "64 bit Memory and IO resources (EXPERIMENTAL)" if (!64BIT && EXPERIMENTAL)
+       default 64BIT
+       help
+         This option allows memory and IO resources to be 64 bit.