On Mon, Jan 13, 2025 at 1:35 AM Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> 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> Acked-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx> > --- > 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); > > /* start writeback */ > __swap_writepage(folio, &wbc); > -- > 2.45.2 >
