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Subject[PATCH] mm: Move HOLES_IN_ZONE into mm
Date
commit a55749639dc1 ("ia64: drop marked broken DISCONTIGMEM and VIRTUAL_MEM_MAP")
drop VIRTUAL_MEM_MAP, so there is no need HOLES_IN_ZONE on ia64.

Also move HOLES_IN_ZONE into mm/Kconfig, select it if architecture needs
this feature.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
arch/arm64/Kconfig | 4 +---
arch/ia64/Kconfig | 3 ---
arch/mips/Kconfig | 3 ---
mm/Kconfig | 3 +++
4 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f0b17d758912..3c5a53e0db91 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -202,6 +202,7 @@ 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
@@ -1053,9 +1054,6 @@ 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_SPARSEMEM_ENABLE
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 279252e3e0f7..36499e99102d 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -308,9 +308,6 @@ config NODES_SHIFT
MAX_NUMNODES will be 2^(This value).
If in doubt, use the default.

-config HOLES_IN_ZONE
- bool
-
config HAVE_ARCH_NODEDATA_EXTENSION
def_bool y
depends on NUMA
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 7a174ea61ca5..c6d522fbd67d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1233,9 +1233,6 @@ config HAVE_PLAT_MEMCPY
config ISA_DMA_API
bool

-config HOLES_IN_ZONE
- bool
-
config SYS_SUPPORTS_RELOCATABLE
bool
help
diff --git a/mm/Kconfig b/mm/Kconfig
index a8a367c30053..afc57cbf1cea 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -128,6 +128,9 @@ 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.
--
2.26.2
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