From a35e0ed19ff9792c0b53c9e7dcd7ccd4bdcd17d1 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 the Maple Tree Unlike the rbtree, the Maple Tree will return a NULL if there's nothing at a particular address. Signed-off-by: Matthew Wilcox (Oracle) --- 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 ec549a985e69..6717446d2f81 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2739,12 +2739,7 @@ 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