From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx> Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> --- mm/gup.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/mm/gup.c b/mm/gup.c index 2c51e9748a6a..60892e5df6a2 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -1570,7 +1570,6 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors) long ret = 0; end = start + len; - for (nstart = start; nstart < end; nstart = nend) { /* * We want to fault in pages for [nstart; end) address range. @@ -1579,10 +1578,10 @@ 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, start, end); } else if (nstart >= vma->vm_end) - vma = vma->vm_next; - if (!vma || vma->vm_start >= end) + vma = find_vma(mm, vma->vm_end); + if (!vma) break; /* * Set [nstart; nend) to intersection of desired address -- 2.30.2