| From: Baolin Wang <baolin.wang@linux.alibaba.com> |
| Subject: mm-damon-add-access-checking-for-hugetlb-pages-fix |
| |
| > On i386: |
| > |
| > ../mm/damon/vaddr.c: In function `damon_hugetlb_mkold': |
| > ../mm/damon/vaddr.c:402:17: warning: unused variable `h' [-Wunused-variable] |
| > struct hstate *h = hstate_vma(vma); |
| |
| Link: https://lkml.kernel.org/r/1aaf9c11-0d8e-b92d-5c92-46e50a6e8d4e@linux.alibaba.com |
| Reported-by: Randy Dunlap <rdunlap@infradead.org> |
| Cc: Stephen Rothwell <sfr@canb.auug.org.au> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| mm/damon/vaddr.c | 3 +-- |
| 1 file changed, 1 insertion(+), 2 deletions(-) |
| |
| --- a/mm/damon/vaddr.c~mm-damon-add-access-checking-for-hugetlb-pages-fix |
| +++ a/mm/damon/vaddr.c |
| @@ -393,7 +393,6 @@ static void damon_hugetlb_mkold(pte_t *p |
| struct vm_area_struct *vma, unsigned long addr) |
| { |
| bool referenced = false; |
| - struct hstate *h = hstate_vma(vma); |
| pte_t entry = huge_ptep_get(pte); |
| struct page *page = pte_page(entry); |
| |
| @@ -410,7 +409,7 @@ static void damon_hugetlb_mkold(pte_t *p |
| } |
| |
| #ifdef CONFIG_MMU_NOTIFIER |
| - if (mmu_notifier_clear_young(mm, addr, addr + huge_page_size(h))) |
| + if (mmu_notifier_clear_young(mm, addr, addr + huge_page_size(hstate_vma(vma)))) |
| referenced = true; |
| #endif /* CONFIG_MMU_NOTIFIER */ |
| |
| _ |
