bonding: correct the MAC address for "follow" fail_over_mac policy

[karo-tx-linux.git] / mm / Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index c180af880ed5169cdbf1799c0650b61d68130990..e79de2bd12cd046c416537b8c6550ca3aea95a01 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -636,3 +636,21 @@ config MAX_STACK_SIZE_MB
          changed to a smaller value in which case that is used.
 
          A sane initial value is 80 MB.
+
+# For architectures that support deferred memory initialisation
+config ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
+       bool
+
+config DEFERRED_STRUCT_PAGE_INIT
+       bool "Defer initialisation of struct pages to kswapd"
+       default n
+       depends on ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
+       depends on MEMORY_HOTPLUG
+       help
+         Ordinarily all struct pages are initialised during early boot in a
+         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.