[PATCH 7/8] mm/mglru: Check PG_dropcache instead of PG_reclaim in lru_gen_folio_seq()

[Kirill A. Shutemov]

Kernel sets PG_dropcache instead of PG_reclaim everywhere. Check
PG_dropcache in lru_gen_folio_seq().

No need to check for dirty and writeback as there's no conflict with
PG_readahead anymore.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
 include/linux/mm_inline.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index f9157a0c42a5..f353d3c610ac 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -241,8 +241,7 @@ static inline unsigned long lru_gen_folio_seq(struct lruvec *lruvec, struct foli
 	else if (reclaiming)
 		gen = MAX_NR_GENS;
 	else if ((!folio_is_file_lru(folio) && !folio_test_swapcache(folio)) ||
-		 (folio_test_reclaim(folio) &&
-		  (folio_test_dirty(folio) || folio_test_writeback(folio))))
+		 folio_test_dropbehind(folio))
 		gen = MIN_NR_GENS;
 	else
 		gen = MAX_NR_GENS - folio_test_workingset(folio);
-- 
2.45.2