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mm: remove redundant test in validate_page_before_insert()

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The page_has_type() call would have included slab since commit
46df8e73a4 and now we don't even get that far because slab pages have a
zero refcount since commit 9aec2fb0fd.

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>
This commit is contained in:
Matthew Wilcox (Oracle)
2025-09-10 15:29:18 +01:00
committed by Andrew Morton
parent 3a37469e5a
commit 6fd893a40e
1 changed files with 1 additions and 2 deletions
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3
mm/memory.c
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@@ -2266,8 +2266,7 @@ 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;