From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 1 Mar 2021 19:24:29 +0000 (-0500)
Subject: mm/framge_vector: Use vma_lookup() instead of find_vma_intersection()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=9eba0235e627791c7d859c4d001e8a48a1d0f70b;p=users%2Fjedix%2Flinux-maple.git

mm/framge_vector: Use vma_lookup() instead of find_vma_intersection()

vma_lookup() is more efficient

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

diff --git a/mm/frame_vector.c b/mm/frame_vector.c
index 10f82d5643b6..55300aabf06d 100644
--- a/mm/frame_vector.c
+++ b/mm/frame_vector.c
@@ -50,7 +50,7 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames,
 
 	mmap_read_lock(mm);
 	locked = 1;
-	vma = find_vma_intersection(mm, start, start + 1);
+	vma = vma_lookup(mm, start);
 	if (!vma) {
 		ret = -EFAULT;
 		goto out;
@@ -98,7 +98,7 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames,
 		 */
 		if (ret >= nr_frames || start < vma->vm_end)
 			break;
-		vma = find_vma_intersection(mm, start, start + 1);
+		vma = vma_lookup(mm, start);
 	} while (vma && vma->vm_flags & (VM_IO | VM_PFNMAP));
 out:
 	if (locked)