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-rw-r--r--arch/powerpc/configs/pseries_defconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index ffd4bbd483f9..7677850e2b07 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -46,6 +46,7 @@ CONFIG_KEXEC=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_KSM=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_PPC_64K_PAGES=y
CONFIG_PPC_SUBPAGE_PROT=y