From ab57205f02a7e7f57b68e0af91ff17c8f4bad3af Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Thu, 28 Oct 2021 21:53:09 -0400 Subject: [PATCH] mm: Convert vma_lookup() to use mtree_load() Unlike the rbtree, the Maple Tree will return a NULL if there's nothing at a particular address. Since the previous commit dropped the vmacache, it is now possible to consult the tree directly. Acked-by: Vlastimil Babka Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Liam R. Howlett --- include/linux/mm.h | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 72654108380e..c57d23b9564c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2802,12 +2802,7 @@ extern struct vm_area_struct *find_vma_intersection(struct mm_struct *mm, static inline struct vm_area_struct *vma_lookup(struct mm_struct *mm, unsigned long addr) { - struct vm_area_struct *vma = find_vma(mm, addr); - - if (vma && addr < vma->vm_start) - vma = NULL; - - return vma; + return mtree_load(&mm->mm_mt, addr); } static inline unsigned long vm_start_gap(struct vm_area_struct *vma) -- 2.50.1