From fd15a1f333ff5c55be8d3d94ac4c609afe2fd79f Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Mon, 27 Mar 2017 12:28:25 +0200 Subject: [PATCH] s390: enable ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT Deferred struct page initialization works on s390. However it makes only sense for the fake numa case, since the kthreads that initialize struct pages are started per node. Without fake numa there is just a single node and therefore no gain. However there is no reason to not enable this feature. Therefore select the config option and enable the feature in all config files. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/Kconfig | 1 + arch/s390/configs/default_defconfig | 1 + arch/s390/configs/gcov_defconfig | 1 + arch/s390/configs/performance_defconfig | 1 + 4 files changed, 4 insertions(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 1521edafdd15e..fc842c4bd7204 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -105,6 +105,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE select ARCH_SAVE_PAGE_KEYS if HIBERNATION select ARCH_SUPPORTS_ATOMIC_RMW + select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT select ARCH_SUPPORTS_NUMA_BALANCING select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig index 4b176fe83da4c..a5039fa893144 100644 --- a/arch/s390/configs/default_defconfig +++ b/arch/s390/configs/default_defconfig @@ -73,6 +73,7 @@ CONFIG_ZSWAP=y CONFIG_ZBUD=m CONFIG_ZSMALLOC=m CONFIG_ZSMALLOC_STAT=y +CONFIG_DEFERRED_STRUCT_PAGE_INIT=y CONFIG_IDLE_PAGE_TRACKING=y CONFIG_PCI=y CONFIG_PCI_DEBUG=y diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig index 0de46cc397f6f..83970b5afb2bc 100644 --- a/arch/s390/configs/gcov_defconfig +++ b/arch/s390/configs/gcov_defconfig @@ -72,6 +72,7 @@ CONFIG_ZSWAP=y CONFIG_ZBUD=m CONFIG_ZSMALLOC=m CONFIG_ZSMALLOC_STAT=y +CONFIG_DEFERRED_STRUCT_PAGE_INIT=y CONFIG_IDLE_PAGE_TRACKING=y CONFIG_PCI=y CONFIG_HOTPLUG_PCI=y diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig index e167557b434c2..fbc6542aaf595 100644 --- a/arch/s390/configs/performance_defconfig +++ b/arch/s390/configs/performance_defconfig @@ -70,6 +70,7 @@ CONFIG_ZSWAP=y CONFIG_ZBUD=m CONFIG_ZSMALLOC=m CONFIG_ZSMALLOC_STAT=y +CONFIG_DEFERRED_STRUCT_PAGE_INIT=y CONFIG_IDLE_PAGE_TRACKING=y CONFIG_PCI=y CONFIG_HOTPLUG_PCI=y -- GitLab