From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Since we're going to have huge pages in page cache, we need to call
adjust file-backed VMA, which potentially can contain huge pages.
For now we call it for all VMAs.
Probably later we will need to introduce a flag to indicate that the VMA
has huge pages.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Acked-by: Hillf Danton <dhillf@xxxxxxxxx>
---
include/linux/huge_mm.h | 11 +----------
mm/huge_memory.c | 2 +-
2 files changed, 2 insertions(+), 11 deletions(-)
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 63579cb..c4e050d 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -122,7 +122,7 @@ extern void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address,
#endif
extern int hugepage_madvise(struct vm_area_struct *vma,
unsigned long *vm_flags, int advice);
-extern void __vma_adjust_trans_huge(struct vm_area_struct *vma,
+extern void vma_adjust_trans_huge(struct vm_area_struct *vma,
unsigned long start,
unsigned long end,
long adjust_next);
@@ -138,15 +138,6 @@ static inline int pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
else
return 0;
}
-static inline void vma_adjust_trans_huge(struct vm_area_struct *vma,
- unsigned long start,
- unsigned long end,
- long adjust_next)
-{
- if (!vma->anon_vma || vma->vm_ops)
- return;
- __vma_adjust_trans_huge(vma, start, end, adjust_next);
-}
static inline int hpage_nr_pages(struct page *page)
{
if (unlikely(PageTransHuge(page)))
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d9a21d06..2a56ddd 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2940,7 +2940,7 @@ static void split_huge_page_address(struct mm_struct *mm,
split_huge_page_pmd_mm(mm, address, pmd);
}
-void __vma_adjust_trans_huge(struct vm_area_struct *vma,
+void vma_adjust_trans_huge(struct vm_area_struct *vma,
unsigned long start,
unsigned long end,
long adjust_next)
--
2.1.0
--
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