[merged mm-stable] mm-remove-redundant-test-in-validate_page_before_insert.patch removed from -mm tree

[merged mm-stable] mm-remove-redundant-test-in-validate_page_before_insert.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: remove redundant test in validate_page_before_insert()
has been removed from the -mm tree.  Its filename was
     mm-remove-redundant-test-in-validate_page_before_insert.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: mm: remove redundant test in validate_page_before_insert()
Date: Wed, 10 Sep 2025 15:29:18 +0100

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.

Link: https://lkml.kernel.org/r/20250910142923.2465470-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/mm/memory.c~mm-remove-redundant-test-in-validate_page_before_insert
+++ a/mm/memory.c
@@ -2266,8 +2266,7 @@ static int validate_page_before_insert(s
 			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;
_

Patches currently in -mm which might be from willy@infradead.org are

ksm-use-a-folio-inside-cmp_and_merge_page.patch