From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 1 Mar 2021 19:30:58 +0000 (-0500)
Subject: mm/mempolicy: Use vma_lookup() instead of find_vma_intersection()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=44363170bcfdf3a5d719cd4cf2dbd9c96f0dad59;p=users%2Fjedix%2Flinux-maple.git

mm/mempolicy: 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/mempolicy.c b/mm/mempolicy.c
index abbef34fe420..b9ad22a963f8 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -968,7 +968,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask,
 		 * want to return MPOL_DEFAULT in this case.
 		 */
 		mmap_read_lock(mm);
-		vma = find_vma_intersection(mm, addr, addr+1);
+		vma = vma_lookup(mm, addr);
 		if (!vma) {
 			mmap_read_unlock(mm);
 			return -EFAULT;