mm/vmscan: use helper folio_is_file_lru()

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

[linmiaohe@huawei.com: use folio_is_file_lru()]
Link: https://lkml.kernel.org/r/20220428105802.21389-1-linmiaohe@huawei.com
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>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 5c20efe..9ff3cc2 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1414,14 +1414,14 @@ static enum page_references folio_check_references(struct folio *folio,
                /*
                 * Activate file-backed executable folios after first usage.
                 */
-               if ((vm_flags & VM_EXEC) && !folio_test_swapbacked(folio))
+               if ((vm_flags & VM_EXEC) && folio_is_file_lru(folio))
                        return PAGEREF_ACTIVATE;
 
                return PAGEREF_KEEP;
        }
 
        /* 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;