From bb38b0838d88f4b9f48f817223712f8ba9aef377 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Mon, 4 Jan 2021 14:26:34 -0500 Subject: [PATCH] arch/powerpc: Remove mmap linked list from mm/book2s32/subpage_prot Start using the maple tree Signed-off-by: Liam R. Howlett --- arch/powerpc/mm/book3s64/subpage_prot.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/mm/book3s64/subpage_prot.c b/arch/powerpc/mm/book3s64/subpage_prot.c index 60c6ea16a972..ada1531f81be 100644 --- a/arch/powerpc/mm/book3s64/subpage_prot.c +++ b/arch/powerpc/mm/book3s64/subpage_prot.c @@ -149,24 +149,15 @@ static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr, unsigned long len) { struct vm_area_struct *vma; + MA_STATE(mas, &mm->mm_mt, addr, addr); /* * We don't try too hard, we just mark all the vma in that range * VM_NOHUGEPAGE and split them. */ - vma = find_vma(mm, addr); - /* - * If the range is in unmapped range, just return - */ - if (vma && ((addr + len) <= vma->vm_start)) - return; - - while (vma) { - if (vma->vm_start >= (addr + len)) - break; + mas_for_each(&mas, vma, addr + len) { vma->vm_flags |= VM_NOHUGEPAGE; walk_page_vma(vma, &subpage_walk_ops, NULL); - vma = vma->vm_next; } } #else -- 2.50.1