[126/192] mm/mempolicy: use vma_lookup() in __access_remote_vm()

Commit Message

Andrew Morton June 29, 2021, 2:39 a.m. UTC

From: Liam Howlett <[e-mail]>
Subject: mm/mempolicy: use vma_lookup() in __access_remote_vm()

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

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Liam R. Howlett <[e-mail]>
Reviewed-by: Laurent Dufour <[e-mail]>
Acked-by: David Hildenbrand <[e-mail]>
Acked-by: Davidlohr Bueso <[e-mail]>
Cc: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/mempolicy.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

--- a/mm/mempolicy.c~mm-mempolicy-use-vma_lookup-in-__access_remote_vm
+++ a/mm/mempolicy.c
@@ -975,7 +975,7 @@  static long do_get_mempolicy(int *policy
 		 * 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;