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authorShivank Garg <shivankg@amd.com>2026-01-18 22:22:57 +0300
committerAndrew Morton <akpm@linux-foundation.org>2026-02-01 01:22:30 +0300
commit3ab981c1fca08721a2cc100d4e097d4e0c9e149b (patch)
tree7f3eef503c247eca433876b9a0af0779127459ee /include
parent7832e4d583ee7c6a7907731c568ca40b160d8a5e (diff)
downloadlinux-3ab981c1fca08721a2cc100d4e097d4e0c9e149b.tar.xz
mm/khugepaged: change collapse_pte_mapped_thp() to return void
The only external caller of collapse_pte_mapped_thp() is uprobe, which ignores the return value. Change the external API to return void to simplify the interface. Introduce try_collapse_pte_mapped_thp() for internal use that preserves the return value. This prepares for future patch that will convert the return type to use enum scan_result. Link: https://lkml.kernel.org/r/20260118192253.9263-10-shivankg@amd.com Signed-off-by: Shivank Garg <shivankg@amd.com> Suggested-by: David Hildenbrand (Red Hat) <david@kernel.org> Acked-by: Lance Yang <lance.yang@linux.dev> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Reviewed-by: Zi Yan <ziy@nvidia.com> Tested-by: Nico Pache <npache@redhat.com> Reviewed-by: Nico Pache <npache@redhat.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Barry Song <baohua@kernel.org> Cc: Dev Jain <dev.jain@arm.com> Cc: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Wei Yang <richard.weiyang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/khugepaged.h9
1 files changed, 4 insertions, 5 deletions
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h
index eb1946a70cff..d7a9053ff4fe 100644
--- a/include/linux/khugepaged.h
+++ b/include/linux/khugepaged.h
@@ -17,8 +17,8 @@ extern void khugepaged_enter_vma(struct vm_area_struct *vma,
vm_flags_t vm_flags);
extern void khugepaged_min_free_kbytes_update(void);
extern bool current_is_khugepaged(void);
-extern int collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr,
- bool install_pmd);
+void collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr,
+ bool install_pmd);
static inline void khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm)
{
@@ -42,10 +42,9 @@ static inline void khugepaged_enter_vma(struct vm_area_struct *vma,
vm_flags_t vm_flags)
{
}
-static inline int collapse_pte_mapped_thp(struct mm_struct *mm,
- unsigned long addr, bool install_pmd)
+static inline void collapse_pte_mapped_thp(struct mm_struct *mm,
+ unsigned long addr, bool install_pmd)
{
- return 0;
}
static inline void khugepaged_min_free_kbytes_update(void)