diff mbox series

[19/22] mm/migrate: Use vma_lookup() in do_pages_stat_array()

Message ID 20210510165839.2692974-20-Liam.Howlett@Oracle.com (mailing list archive)
State New, archived
Headers show
Series mm: Add vma_lookup() | expand

Commit Message

Liam R. Howlett May 10, 2021, 4:58 p.m. UTC 
Use vma_lookup() to find the VMA at a specific address.  As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 mm/migrate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/mm/migrate.c b/mm/migrate.c
index b234c3f3acb7..611781c0f9b5 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1833,8 +1833,8 @@  static void do_pages_stat_array(struct mm_struct *mm, unsigned long nr_pages,
 		struct page *page;
 		int err = -EFAULT;
 
-		vma = find_vma(mm, addr);
-		if (!vma || addr < vma->vm_start)
+		vma = vma_lookup(mm, addr);
+		if (!vma)
 			goto set_status;
 
 		/* FOLL_DUMP to ignore special (like zero) pages */