From: Andrea Arcangeli <aarcange@xxxxxxxxxx> With transparent hugepage support we need compaction for the "defrag" sysfs controls to be effective. Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> --- diff --git a/mm/Kconfig b/mm/Kconfig --- a/mm/Kconfig +++ b/mm/Kconfig @@ -303,6 +303,7 @@ config NOMMU_INITIAL_TRIM_EXCESS config TRANSPARENT_HUGEPAGE bool "Transparent Hugepage support" if EMBEDDED depends on X86 && MMU + select COMPACTION default y help Transparent Hugepages allows the kernel to use huge pages and -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>