diff options
| author | Anshuman Khandual <[email protected]> | 2021-06-30 18:51:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-06-30 20:47:30 -0700 |
| commit | cebc774fdc9cb39b959968fbfd7aabe7a8a5154c (patch) | |
| tree | d0c894015bb5774ec4420499529d3614b187bdbe | |
| parent | e346e6688c4aa18588f2c6a75b572d8ca7a65f5f (diff) | |
mm/thp: make ARCH_ENABLE_SPLIT_PMD_PTLOCK dependent on PGTABLE_LEVELS > 2
ARCH_ENABLE_SPLIT_PMD_PTLOCK is irrelevant unless there are more than two
page table levels including PMD (also per
Documentation/vm/split_page_table_lock.rst). Make this dependency
explicit on remaining platforms i.e x86 and s390 where
ARCH_ENABLE_SPLIT_PMD_PTLOCK is subscribed.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Anshuman Khandual <[email protected]>
Acked-by: Gerald Schaefer <[email protected]> # s390
Cc: Heiko Carstens <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | arch/s390/Kconfig | 2 | ||||
| -rw-r--r-- | arch/x86/Kconfig | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 707afbcd81c2..4098637a52fc 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -62,7 +62,7 @@ config S390 select ARCH_BINFMT_ELF_STATE select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM select ARCH_ENABLE_MEMORY_HOTREMOVE - select ARCH_ENABLE_SPLIT_PMD_PTLOCK + select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2 select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_DEBUG_WX select ARCH_HAS_DEVMEM_IS_ALLOWED diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5d523ff70fe7..8c5d86655180 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -63,7 +63,7 @@ config X86 select ARCH_ENABLE_HUGEPAGE_MIGRATION if X86_64 && HUGETLB_PAGE && MIGRATION select ARCH_ENABLE_MEMORY_HOTPLUG if X86_64 || (X86_32 && HIGHMEM) select ARCH_ENABLE_MEMORY_HOTREMOVE if MEMORY_HOTPLUG - select ARCH_ENABLE_SPLIT_PMD_PTLOCK if X86_64 || X86_PAE + select ARCH_ENABLE_SPLIT_PMD_PTLOCK if (PGTABLE_LEVELS > 2) && (X86_64 || X86_PAE) select ARCH_ENABLE_THP_MIGRATION if X86_64 && TRANSPARENT_HUGEPAGE select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_CACHE_LINE_SIZE |