vfio: Use vma_lookup() instead of find_vma_intersection()

vma_lookup() finds the vma of a specific address with a cleaner
interface and is more readable.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index a0747c35a7781ec3b71b1d06583abbcb05a9e6e2..fb695bf0b1c4771fb425610755737e03f9648335 100644 (file)
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -567,7 +567,7 @@ static int vaddr_get_pfns(struct mm_struct *mm, unsigned long vaddr,
        vaddr = untagged_addr(vaddr);
 
 retry:
-       vma = find_vma_intersection(mm, vaddr, vaddr + 1);
+       vma = vma_lookup(mm, vaddr);
 
        if (vma && vma->vm_flags & VM_PFNMAP) {
                ret = follow_fault_pfn(vma, mm, vaddr, pfn, prot & IOMMU_WRITE);