X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2FKconfig;h=1cc6cada2bbfa837ed0f37ec292f4657125cec68;hb=71a27fecaf836093a30fe538c5ab98ef0b25bfc8;hp=a17da8bafe62758b6f0d86816d9d6c64b464e687;hpb=f697b677620d04d8c77841745727de85f7e948b1;p=linux-2.6-omap-h63xx.git diff --git a/mm/Kconfig b/mm/Kconfig index a17da8bafe6..1cc6cada2bb 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -112,20 +112,38 @@ config SPARSEMEM_EXTREME def_bool y depends on SPARSEMEM && !SPARSEMEM_STATIC +# +# SPARSEMEM_VMEMMAP uses a virtually mapped mem_map to optimise pfn_to_page +# and page_to_pfn. The most efficient option where kernel virtual space is +# not under pressure. +# +config SPARSEMEM_VMEMMAP_ENABLE + def_bool n + +config SPARSEMEM_VMEMMAP + bool + depends on SPARSEMEM + default y if (SPARSEMEM_VMEMMAP_ENABLE) + # eventually, we can have this option just 'select SPARSEMEM' config MEMORY_HOTPLUG bool "Allow for memory hot-add" depends on SPARSEMEM || X86_64_ACPI_NUMA - depends on HOTPLUG && !SOFTWARE_SUSPEND && ARCH_ENABLE_MEMORY_HOTPLUG - depends on (IA64 || X86 || PPC64) + depends on HOTPLUG && !HIBERNATION && ARCH_ENABLE_MEMORY_HOTPLUG + depends on (IA64 || X86 || PPC64 || SUPERH) comment "Memory hotplug is currently incompatible with Software Suspend" - depends on SPARSEMEM && HOTPLUG && SOFTWARE_SUSPEND + depends on SPARSEMEM && HOTPLUG && HIBERNATION config MEMORY_HOTPLUG_SPARSE def_bool y depends on SPARSEMEM && MEMORY_HOTPLUG +config MEMORY_HOTREMOVE + bool "Allow for memory hot remove" + depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE + depends on MIGRATION + # 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. @@ -137,6 +155,7 @@ config SPLIT_PTLOCK_CPUS int default "4096" if ARM && !CPU_CACHE_VIPT default "4096" if PARISC && !PA20 + default "4096" if XEN default "4" # @@ -163,8 +182,16 @@ config ZONE_DMA_FLAG default "0" if !ZONE_DMA default "1" +config BOUNCE + def_bool y + depends on BLOCK && MMU && (ZONE_DMA || HIGHMEM) + config NR_QUICK int depends on QUICKLIST - default "2" if SUPERH + default "2" if (SUPERH && !SUPERH64) default "1" + +config VIRT_TO_BUS + def_bool y + depends on !ARCH_NO_VIRT_TO_BUS