[PATCH v3 01/12] mm/Kconfig: CONFIG_PGTABLE_HAS_HUGE_LEAVES
From: peterx@redhat.com
Date: 2024-03-21 22:08:10
Also in:
linux-arm-kernel, linux-mm, linux-riscv, lkml
Subsystem:
memory management, memory management - core, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
From: Peter Xu <peterx@redhat.com> Introduce a config option that will be selected as long as huge leaves are involved in pgtable (thp or hugetlbfs). It would be useful to mark any code with this new config that can process either hugetlb or thp pages in any level that is higher than pte level. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Peter Xu <peterx@redhat.com> --- mm/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/mm/Kconfig b/mm/Kconfig
index b924f4a5a3ef..497cdf4d8ebf 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig@@ -850,6 +850,12 @@ config READ_ONLY_THP_FOR_FS endif # TRANSPARENT_HUGEPAGE +# +# The architecture supports pgtable leaves that is larger than PAGE_SIZE +# +config PGTABLE_HAS_HUGE_LEAVES + def_bool TRANSPARENT_HUGEPAGE || HUGETLB_PAGE + # # UP and nommu archs use km based percpu allocator #
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2.44.0