The patch titled Subject: mm-fix-khugepaged-activation-policy-v3 has been added to the -mm mm-unstable branch. Its filename is mm-fix-khugepaged-activation-policy-v3.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Ryan Roberts ryan.roberts@arm.com Subject: mm-fix-khugepaged-activation-policy-v3 Date: Fri, 5 Jul 2024 11:28:48 +0100

- Make hugepage_pmd_enabled() out-of-line static in khugepaged.c (per Andrew) - Refactor hugepage_pmd_enabled() for better readability (per Andrew)

Link: https://lkml.kernel.org/r/20240705102849.2479686-1-ryan.roberts@arm.com Signed-off-by: Ryan Roberts ryan.roberts@arm.com Fixes: 3485b88390b0 ("mm: thp: introduce multi-size THP sysfs interface") Closes: https://lore.kernel.org/linux-mm/7a0bbe69-1e3d-4263-b206-da007791a5c4@redhat... Cc: Baolin Wang baolin.wang@linux.alibaba.com Cc: Barry Song baohua@kernel.org Cc: David Hildenbrand david@redhat.com Cc: Jonathan Corbet corbet@lwn.net Cc: Lance Yang ioworker0@gmail.com Cc: Yang Shi shy828301@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

include/linux/huge_mm.h | 13 ------------- mm/khugepaged.c | 20 ++++++++++++++++++++ 2 files changed, 20 insertions(+), 13 deletions(-)

--- a/include/linux/huge_mm.h~mm-fix-khugepaged-activation-policy-v3 +++ a/include/linux/huge_mm.h @@ -128,19 +128,6 @@ static inline bool hugepage_global_alway (1<<TRANSPARENT_HUGEPAGE_FLAG); }

-static inline bool hugepage_pmd_enabled(void) -{ - /* - * We cover both the anon and the file-backed case here; file-backed - * hugepages, when configured in, are determined by the global control. - * Anon pmd-sized hugepages are determined by the pmd-size control. - */ - return (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && hugepage_global_enabled()) || - test_bit(PMD_ORDER, &huge_anon_orders_always) || - test_bit(PMD_ORDER, &huge_anon_orders_madvise) || - (test_bit(PMD_ORDER, &huge_anon_orders_inherit) && hugepage_global_enabled()); -} - static inline int highest_order(unsigned long orders) { return fls_long(orders) - 1; --- a/mm/khugepaged.c~mm-fix-khugepaged-activation-policy-v3 +++ a/mm/khugepaged.c @@ -413,6 +413,26 @@ static inline int hpage_collapse_test_ex test_bit(MMF_DISABLE_THP, &mm->flags); }

+static bool hugepage_pmd_enabled(void) +{ + /* + * We cover both the anon and the file-backed case here; file-backed + * hugepages, when configured in, are determined by the global control. + * Anon pmd-sized hugepages are determined by the pmd-size control. + */ + if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && + hugepage_global_enabled()) + return true; + if (test_bit(PMD_ORDER, &huge_anon_orders_always)) + return true; + if (test_bit(PMD_ORDER, &huge_anon_orders_madvise)) + return true; + if (test_bit(PMD_ORDER, &huge_anon_orders_inherit) && + hugepage_global_enabled()) + return true; + return false; +} + void __khugepaged_enter(struct mm_struct *mm) { struct khugepaged_mm_slot *mm_slot; _

Patches currently in -mm which might be from ryan.roberts@arm.com are

mm-fix-khugepaged-activation-policy.patch mm-fix-khugepaged-activation-policy-v3.patch