From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 1 Mar 2021 19:27:28 +0000 (-0500)
Subject: vfio: Use vma_lookup() instead of find_vma_intersection()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ae188e0c23fd26d579904624fd9672e7885cc1ce;p=users%2Fjedix%2Flinux-maple.git

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 a0747c35a7781..fb695bf0b1c47 100644
--- 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);