diff options
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 54 |
1 files changed, 26 insertions, 28 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index beb7a455915d..46ef77d5c332 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -137,7 +137,7 @@ config HAVE_MEMBLOCK_NODE_MAP config HAVE_MEMBLOCK_PHYS_MAP bool -config HAVE_GENERIC_RCU_GUP +config HAVE_GENERIC_GUP bool config ARCH_DISCARD_MEMBLOCK @@ -149,32 +149,6 @@ config NO_BOOTMEM config MEMORY_ISOLATION bool -config MOVABLE_NODE - bool "Enable to assign a node which has only movable memory" - depends on HAVE_MEMBLOCK - depends on NO_BOOTMEM - depends on X86_64 || OF_EARLY_FLATTREE || MEMORY_HOTPLUG - depends on NUMA - default n - help - Allow a node to have only movable memory. Pages used by the kernel, - such as direct mapping pages cannot be migrated. So the corresponding - memory device cannot be hotplugged. This option allows the following - two things: - - When the system is booting, node full of hotpluggable memory can - be arranged to have only movable memory so that the whole node can - be hot-removed. (need movable_node boot option specified). - - After the system is up, the option allows users to online all the - memory of a node as movable memory so that the whole node can be - hot-removed. - - Users who don't use the memory hotplug feature are fine with this - option on since they don't specify movable_node boot option or they - don't online memory as movable. - - Say Y here if you want to hotplug a whole node. - Say N here if you want kernel to use memory on all nodes evenly. - # # Only be set on architectures that have completely implemented memory hotplug # feature. If you are not sure, don't touch it. @@ -446,6 +420,18 @@ choice benefit. endchoice +config ARCH_WANTS_THP_SWAP + def_bool n + +config THP_SWAP + def_bool y + depends on TRANSPARENT_HUGEPAGE && ARCH_WANTS_THP_SWAP + help + Swap transparent huge pages in one piece, without splitting. + XXX: For now this only does clustered swap space allocation. + + For selection by architectures with reasonable THP sizes. + config TRANSPARENT_HUGE_PAGECACHE def_bool y depends on TRANSPARENT_HUGEPAGE @@ -683,12 +669,16 @@ config IDLE_PAGE_TRACKING See Documentation/vm/idle_page_tracking.txt for more details. +# arch_add_memory() comprehends device memory +config ARCH_HAS_ZONE_DEVICE + bool + config ZONE_DEVICE bool "Device memory (pmem, etc...) hotplug support" depends on MEMORY_HOTPLUG depends on MEMORY_HOTREMOVE depends on SPARSEMEM_VMEMMAP - depends on X86_64 #arch_add_memory() comprehends device memory + depends on ARCH_HAS_ZONE_DEVICE help Device memory hotplug support allows for establishing pmem, @@ -706,3 +696,11 @@ config ARCH_USES_HIGH_VMA_FLAGS bool config ARCH_HAS_PKEYS bool + +config PERCPU_STATS + bool "Collect percpu memory statistics" + default n + help + This feature collects and exposes statistics via debugfs. The + information includes global and per chunk statistics, which can + be used to help understand percpu memory usage. |