mm: do_xip_mapping_read: fix length calculation

[safe/jmp/linux-2.6] / mm / Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index 9ef9741..b53427a 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -101,7 +101,7 @@ config HAVE_MEMORY_PRESENT
 # with gcc 3.4 and later.
 #
 config SPARSEMEM_STATIC
-       def_bool n
+       bool
 
 #
 # Architecture platforms which require a two level mem_section in SPARSEMEM
@@ -113,7 +113,7 @@ config SPARSEMEM_EXTREME
        depends on SPARSEMEM && !SPARSEMEM_STATIC
 
 config SPARSEMEM_VMEMMAP_ENABLE
-       def_bool n
+       bool
 
 config SPARSEMEM_VMEMMAP
        bool "Sparse Memory virtual memmap"
@@ -129,7 +129,7 @@ config MEMORY_HOTPLUG
        bool "Allow for memory hot-add"
        depends on SPARSEMEM || X86_64_ACPI_NUMA
        depends on HOTPLUG && !HIBERNATION && ARCH_ENABLE_MEMORY_HOTPLUG
-       depends on (IA64 || X86 || PPC64 || SUPERH)
+       depends on (IA64 || X86 || PPC64 || SUPERH || S390)
 
 comment "Memory hotplug is currently incompatible with Software Suspend"
        depends on SPARSEMEM && HOTPLUG && HIBERNATION
@@ -143,6 +143,18 @@ config MEMORY_HOTREMOVE
        depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
        depends on MIGRATION
 
+#
+# If we have space for more page flags then we can enable additional
+# optimizations and functionality.
+#
+# Regular Sparsemem takes page flag bits for the sectionid if it does not
+# use a virtual memmap. Disable extended page flags for 32 bit platforms
+# that require the use of a sectionid in the page flags.
+#
+config PAGEFLAGS_EXTENDED
+       def_bool y
+       depends on 64BIT || SPARSEMEM_VMEMMAP || !NUMA || !SPARSEMEM
+
 # 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.
@@ -162,18 +174,15 @@ config SPLIT_PTLOCK_CPUS
 config MIGRATION
        bool "Page migration"
        def_bool y
-       depends on NUMA
+       depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE
        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.
+config PHYS_ADDR_T_64BIT
+       def_bool 64BIT || ARCH_PHYS_ADDR_T_64BIT
 
 config ZONE_DMA_FLAG
        int
@@ -187,9 +196,30 @@ config BOUNCE
 config NR_QUICK
        int
        depends on QUICKLIST
-       default "2" if (SUPERH && !SUPERH64)
+       default "2" if SUPERH || AVR32
        default "1"
 
 config VIRT_TO_BUS
        def_bool y
        depends on !ARCH_NO_VIRT_TO_BUS
+
+config UNEVICTABLE_LRU
+       bool "Add LRU list to track non-evictable pages"
+       default y
+       help
+         Keeps unevictable pages off of the active and inactive pageout
+         lists, so kswapd will not waste CPU time or have its balancing
+         algorithms thrown off by scanning these pages.  Selecting this
+         will use one page flag and increase the code size a little,
+         say Y unless you know what you are doing.
+
+config HAVE_MLOCK
+       bool
+       default y if MMU=y
+
+config HAVE_MLOCKED_PAGE_BIT
+       bool
+       default y if HAVE_MLOCK=y && UNEVICTABLE_LRU=y
+
+config MMU_NOTIFIER
+       bool