From: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm/vmscan: use helper folio_is_file_lru()

Use helper folio_is_file_lru() to check whether folio is file lru.  Minor
readability improvement.

Link: https://lkml.kernel.org/r/20220425111232.23182-7-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

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

--- a/mm/vmscan.c~mm-vmscan-use-helper-folio_is_file_lru
+++ a/mm/vmscan.c
@@ -1421,7 +1421,7 @@ static enum page_references folio_check_
 	}
 
 	/* Reclaim if clean, defer dirty folios to writeback */
-	if (referenced_folio && !folio_test_swapbacked(folio))
+	if (referenced_folio && folio_is_file_lru(folio))
 		return PAGEREF_RECLAIM_CLEAN;
 
 	return PAGEREF_RECLAIM;
_