[patch 127/262] mm/hugetlb: drop __unmap_hugepage_range definition from hugetlb.h

Andrew Morton
2021-11-05T20:41:20Z

From: Peter Xu <peterx@redhat.com>
Subject: mm/hugetlb: drop __unmap_hugepage_range definition from hugetlb.h

Remove __unmap_hugepage_range() from the header file, because it is only
used in hugetlb.c.

Link: https://lkml.kernel.org/r/20210917165108.9341-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Suggested-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

include/linux/hugetlb.h | 10 ----------
mm/hugetlb.c | 6 +++---
2 files changed, 3 insertions(+), 13 deletions(-)

--- a/include/linux/hugetlb.h~mm-hugetlb-drop-__unmap_hugepage_range-definition-from-hugetlbh
+++ a/include/linux/hugetlb.h
@@ -143,9 +143,6 @@ void __unmap_hugepage_range_final(struct
struct vm_area_struct *vma,
unsigned long start, unsigned long end,
struct page *ref_page);
-void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
- unsigned long start, unsigned long end,
- struct page *ref_page);
void hugetlb_report_meminfo(struct seq_file *);
int hugetlb_report_node_meminfo(char *buf, int len, int nid);
void hugetlb_show_meminfo(void);
@@ -382,13 +379,6 @@ static inline void __unmap_hugepage_rang
struct vm_area_struct *vma, unsigned long start,
unsigned long end, struct page *ref_page)
{
- BUG();
-}
-
-static inline void __unmap_hugepage_range(struct mmu_gather *tlb,
- struct vm_area_struct *vma, unsigned long start,
- unsigned long end, struct page *ref_page)
-{
BUG();
}

--- a/mm/hugetlb.c~mm-hugetlb-drop-__unmap_hugepage_range-definition-from-hugetlbh
+++ a/mm/hugetlb.c
@@ -4426,9 +4426,9 @@ again:
return ret;
}

-void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
- unsigned long start, unsigned long end,
- struct page *ref_page)
+static void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
+ unsigned long start, unsigned long end,
+ struct page *ref_page)
{
struct mm_struct *mm = vma->vm_mm;
unsigned long address;
_