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mm: generalize HUGETLB_PAGE_SIZE_VARIABLE 

HUGETLB_PAGE_SIZE_VARIABLE need not be defined for each individual
platform subscribing it.  Instead just make it generic.

Link: https://lkml.kernel.org/r/1614914928-22039-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>	[powerpc]
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anshuman Khandual 2021-05-04 18:33:19 -07:00 committed by Linus Torvalds
parent 6501fe5f16
commit 4bfb68a085
3 changed files with 9 additions and 10 deletions
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6
arch/ia64/Kconfig
View File

@ -32,6 +32,7 @@ config IA64
select TTY
select HAVE_ARCH_TRACEHOOK
select HAVE_VIRT_CPU_ACCOUNTING
select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE
select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
select GENERIC_PENDING_IRQ if SMP
@ -82,11 +83,6 @@ config STACKTRACE_SUPPORT
config GENERIC_LOCKBREAK
def_bool n
config HUGETLB_PAGE_SIZE_VARIABLE
bool
depends on HUGETLB_PAGE
default y
config GENERIC_CALIBRATE_DELAY
bool
default y

6
arch/powerpc/Kconfig
View File

@ -232,6 +232,7 @@ config PPC
select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select HUGETLB_PAGE_SIZE_VARIABLE if PPC_BOOK3S_64 && HUGETLB_PAGE
select MMU_GATHER_RCU_TABLE_FREE
select MMU_GATHER_PAGE_SIZE
select HAVE_REGS_AND_STACK_ACCESS_API
@ -416,11 +417,6 @@ config HIGHMEM
source "kernel/Kconfig.hz"
config HUGETLB_PAGE_SIZE_VARIABLE
bool
depends on HUGETLB_PAGE && PPC_BOOK3S_64
default y
config MATH_EMULATION
bool "Math emulation"
depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE

7
mm/Kconfig
View File

@ -273,6 +273,13 @@ config ARCH_ENABLE_HUGEPAGE_MIGRATION
config ARCH_ENABLE_THP_MIGRATION
bool
config HUGETLB_PAGE_SIZE_VARIABLE
def_bool n
help
Allows the pageblock_order value to be dynamic instead of just standard
HUGETLB_PAGE_ORDER when there are multiple HugeTLB page sizes available
on a platform.
config CONTIG_ALLOC
def_bool (MEMORY_ISOLATION && COMPACTION) || CMA