mm: Move HOLES_IN_ZONE into mm

hulk inclusion
category: bugfix
bugzilla: 51781
CVE: NA

Reference: https://lore.kernel.org/linux-mm/20210417075946.181402-1-wangkefeng.wang@huawei.com/
--------------------------------

Move HOLES_IN_ZONE into mm/Kconfig, select it if architecture needs
this feature.
Signed-off-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: NJing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/Kconfig

@@ -184,6 +184,7 @@ config ARM64
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
 	select HAVE_GENERIC_VDSO
+	select HOLES_IN_ZONE
 	select IOMMU_DMA if IOMMU_SUPPORT
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
@@ -1039,9 +1040,6 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK
 	def_bool y
 	depends on NUMA
 
-config HOLES_IN_ZONE
-	def_bool y
-
 source "kernel/Kconfig.hz"
 
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC

arch/ia64/Kconfig

@@ -330,6 +330,7 @@ config NODES_SHIFT
 config VIRTUAL_MEM_MAP
 	bool "Virtual mem map"
 	depends on !SPARSEMEM
+	select HOLES_IN_ZONE
 	default y
 	help
 	  Say Y to compile the kernel with support for a virtual mem map.
@@ -338,10 +339,6 @@ config VIRTUAL_MEM_MAP
 	  require the DISCONTIGMEM option for your machine. If you are
 	  unsure, say Y.
 
-config HOLES_IN_ZONE
-	bool
-	default y if VIRTUAL_MEM_MAP
-
 config HAVE_ARCH_EARLY_PFN_TO_NID
 	def_bool NUMA && SPARSEMEM
 

arch/mips/Kconfig

@@ -1193,9 +1193,6 @@ config HAVE_PLAT_MEMCPY
 config ISA_DMA_API
 	bool
 
-config HOLES_IN_ZONE
-	bool
-
 config SYS_SUPPORTS_RELOCATABLE
 	bool
 	help

mm/Kconfig

@@ -129,6 +129,9 @@ config HAVE_FAST_GUP
 	depends on MMU
 	bool
 
+config HOLES_IN_ZONE
+	bool
+
 # Don't discard allocated memory used to track "memory" and "reserved" memblocks
 # after early boot, so it can still be used to test for validity of memory.
 # Also, memblocks are updated with memory hot(un)plug.