[PATCH 2/3] mm: Remove redundant test in validate_page_before_insert()

["Matthew Wilcox (Oracle)" <willy@infradead.org>]

The page_has_type() call would have included slab since commit
46df8e73a4a3 and now we don't even get that far because slab
pages have a zero refcount since commit 9aec2fb0fd5e.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Hildenbrand <david@redhat.com>
---
 mm/memory.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 3e0404bd57a0..46fa459d9a11 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2268,8 +2268,7 @@ static int validate_page_before_insert(struct vm_area_struct *vma,
 			return -EINVAL;
 		return 0;
 	}
-	if (folio_test_anon(folio) || folio_test_slab(folio) ||
-	    page_has_type(page))
+	if (folio_test_anon(folio) || page_has_type(page))
 		return -EINVAL;
 	flush_dcache_folio(folio);
 	return 0;
-- 
2.47.2