On 13.01.25 10:34, Kirill A. Shutemov wrote:
The recently introduced PG_dropbehind allows for freeing folios
immediately after writeback. Unlike PG_reclaim, it does not need vmscan
to be involved to get the folio freed.
Instead of using folio_set_reclaim(), use folio_set_dropbehind() in
zswap_writeback_entry().
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
mm/zswap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/zswap.c b/mm/zswap.c
index 167ae641379f..c20bad0b0978 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1096,8 +1096,8 @@ static int zswap_writeback_entry(struct zswap_entry *entry,
/* folio is up to date */
folio_mark_uptodate(folio);
- /* move it to the tail of the inactive list after end_writeback */
- folio_set_reclaim(folio);
+ /* free the folio after writeback */
+ folio_set_dropbehind(folio);
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
--
Cheers,
David / dhildenb
