diff mbox series

[v2,8/9] mm: shmem: drop folio reference count using 'nr_pages' in shmem_delete_from_page_cache()

Message ID a11634487d3d3dfb4e69e07f5575de18a27ee67a.1718690645.git.baolin.wang@linux.alibaba.com (mailing list archive)
State New
Headers show
Series support large folio swap-out and swap-in for shmem | expand

Commit Message

Baolin Wang June 18, 2024, 6:54 a.m. UTC 
To support large folio swapin/swapout for shmem in the following patches,
drop the folio's reference count by the number of pages contained in the
folio when a shmem folio is deleted from shmem pagecache after adding
into swap cache.

Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
 mm/shmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/shmem.c b/mm/shmem.c
index c0a9253f3a99..9a35ee7e7f40 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -831,7 +831,7 @@  static void shmem_delete_from_page_cache(struct folio *folio, void *radswap)
 	__lruvec_stat_mod_folio(folio, NR_FILE_PAGES, -nr);
 	__lruvec_stat_mod_folio(folio, NR_SHMEM, -nr);
 	xa_unlock_irq(&mapping->i_pages);
-	folio_put(folio);
+	folio_put_refs(folio, nr);
 	BUG_ON(error);
 }