From: Liam R. Howlett Date: Mon, 4 Jan 2021 19:56:20 +0000 (-0500) Subject: mm/gup: Use maple tree navigation instead of linked list X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=cb80fa143a9ce77debcdc6ab2b7b6417bc28b716;p=users%2Fjedix%2Flinux-maple.git mm/gup: Use maple tree navigation instead of linked list Use find_vma_intersection() to locate the VMAs in __mm_populate() instead of using find_vma() and the linked list. Signed-off-by: Liam R. Howlett --- diff --git a/mm/gup.c b/mm/gup.c index f0af462ac1e2..0fef70bc6736 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -1584,10 +1584,11 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors) if (!locked) { locked = 1; mmap_read_lock(mm); - vma = find_vma(mm, nstart); + vma = find_vma_intersection(mm, nstart, end); } else if (nstart >= vma->vm_end) - vma = vma->vm_next; - if (!vma || vma->vm_start >= end) + vma = find_vma_intersection(mm, vma->vm_end, end); + + if (!vma) break; /* * Set [nstart; nend) to intersection of desired address