Hi, Andrew, Do you think my patch below is better? Thanks! ------------->
Introduce a new Kconfig CONFIG_NUMA_SYSFS for drivers/base/node.c which just provides sysfs interface, so that when we select CONFIG_NUMA, we don't have to enable the sysfs interface too. This by the way fixes a randconfig build error when NUMA && !SYSFS. Signed-off-by: WANG Cong <amwang@xxxxxxxxxx> --- diff --git a/drivers/base/Makefile b/drivers/base/Makefile index 99a375a..e382338 100644 --- a/drivers/base/Makefile +++ b/drivers/base/Makefile @@ -10,7 +10,7 @@ obj-$(CONFIG_HAS_DMA) += dma-mapping.o obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o obj-$(CONFIG_ISA) += isa.o obj-$(CONFIG_FW_LOADER) += firmware_class.o -obj-$(CONFIG_NUMA) += node.o +obj-$(CONFIG_NUMA_SYSFS) += node.o obj-$(CONFIG_MEMORY_HOTPLUG_SPARSE) += memory.o obj-$(CONFIG_SMP) += topology.o ifeq ($(CONFIG_SYSFS),y) diff --git a/mm/Kconfig b/mm/Kconfig index f2f1ca1..77345e7 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -340,6 +340,16 @@ choice benefit. endchoice +config NUMA_SYSFS + bool "Enable NUMA sysfs interface for user-space" + depends on NUMA + depends on SYSFS + default y + help + This enables NUMA sysfs interface, /sys/devices/system/node/* + files, for user-space tools, like numactl. If you have enabled + NUMA, probably you also need this one. + # # UP and nommu archs use km based percpu allocator #