| From | Liam Howlett <> | Subject | [PATCH v13 51/70] mm/gup: use maple tree navigation instead of linked list | Date | Mon, 22 Aug 2022 15:06:28 +0000 |
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From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>
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 <Liam.Howlett@Oracle.com> --- mm/gup.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/mm/gup.c b/mm/gup.c index 5aa7531a703b..d54676448470 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -1667,10 +1667,11 @@ 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 -- 2.35.1
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