From: Lukas Bulwahn Date: Mon, 22 Aug 2022 08:25:25 +0000 (+0200) Subject: mm/hugetlb: remove unused local variable dst_entry in copy_hugetlb_page_range() X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=de0fc2bb84b5276f77efbd5826475d15ddac2f7f;p=users%2Fjedix%2Flinux-maple.git mm/hugetlb: remove unused local variable dst_entry in copy_hugetlb_page_range() Commit a0e4f7b82610 ("mm/hugetlb: make detecting shared pte more reliable") modifies copy_hugetlb_page_range() such that huge_ptep_get(dst_pte) and the local variable dst_entry is not used explicitly in this function. Remove this unused local variable dst_entry in copy_hugetlb_page_range(). No functional change. Link: https://lkml.kernel.org/r/20220822082525.26071-1-lukas.bulwahn@gmail.com Signed-off-by: Lukas Bulwahn Reviewed-by: Miaohe Lin Signed-off-by: Andrew Morton --- diff --git a/mm/hugetlb.c b/mm/hugetlb.c index cf686c7b7e52d..de12ab6234eb5 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4750,7 +4750,7 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma) { - pte_t *src_pte, *dst_pte, entry, dst_entry; + pte_t *src_pte, *dst_pte, entry; struct page *ptepage; unsigned long addr; bool cow = is_cow_mapping(src_vma->vm_flags); @@ -4810,7 +4810,6 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, src_ptl = huge_pte_lockptr(h, src, src_pte); spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); entry = huge_ptep_get(src_pte); - dst_entry = huge_ptep_get(dst_pte); again: if (huge_pte_none(entry)) { /* @@ -4893,7 +4892,7 @@ again: restore_reserve_on_error(h, dst_vma, addr, new); put_page(new); - /* dst_entry won't change as in child */ + /* huge_ptep of dst_pte won't change as in child */ goto again; } hugetlb_install_page(dst_vma, dst_pte, addr, new);