diff options
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 97a4e06b15c0..05efa6a5199e 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -187,7 +187,6 @@ config MEMORY_HOTPLUG bool "Allow for memory hot-add" depends on SPARSEMEM || X86_64_ACPI_NUMA depends on ARCH_ENABLE_MEMORY_HOTPLUG - depends on (IA64 || X86 || PPC_BOOK3S_64 || SUPERH || S390) config MEMORY_HOTPLUG_SPARSE def_bool y @@ -624,7 +623,7 @@ config ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT bool config DEFERRED_STRUCT_PAGE_INIT - bool "Defer initialisation of struct pages to kswapd" + bool "Defer initialisation of struct pages to kthreads" default n depends on ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT depends on MEMORY_HOTPLUG @@ -633,9 +632,10 @@ config DEFERRED_STRUCT_PAGE_INIT single thread. On very large machines this can take a considerable amount of time. If this option is set, large machines will bring up a subset of memmap at boot and then initialise the rest in parallel - when kswapd starts. This has a potential performance impact on - processes running early in the lifetime of the systemm until kswapd - finishes the initialisation. + by starting one-off "pgdatinitX" kernel thread for each node X. This + has a potential performance impact on processes running early in the + lifetime of the system until these kthreads finish the + initialisation. config IDLE_PAGE_TRACKING bool "Enable idle page tracking" @@ -651,10 +651,9 @@ config IDLE_PAGE_TRACKING config ZONE_DEVICE bool "Device memory (pmem, etc...) hotplug support" if EXPERT - default !ZONE_DMA - depends on !ZONE_DMA depends on MEMORY_HOTPLUG depends on MEMORY_HOTREMOVE + depends on SPARSEMEM_VMEMMAP depends on X86_64 #arch_add_memory() comprehends device memory help |
