[PATCH] mm/shmem.c: clean up comment of shmem_swapin_folio

[Miaohe Lin]

shmem_swapin_folio has changed to use folio but comment still mentions
page. Update the relevant comment accordingly as suggested by Naoya.

Suggested-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/shmem.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index a6f565308133..12d45a03f7fc 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1706,10 +1706,10 @@ static void shmem_set_folio_swapin_error(struct inode *inode, pgoff_t index,
 }
 
 /*
- * Swap in the page pointed to by *pagep.
- * Caller has to make sure that *pagep contains a valid swapped page.
- * Returns 0 and the page in pagep if success. On failure, returns the
- * error code and NULL in *pagep.
+ * Swap in the folio pointed to by *foliop.
+ * Caller has to make sure that *foliop contains a valid swapped folio.
+ * Returns 0 and the folio in foliop if success. On failure, returns the
+ * error code and NULL in *foliop.
  */
 static int shmem_swapin_folio(struct inode *inode, pgoff_t index,
 			     struct folio **foliop, enum sgp_type sgp,
@@ -1749,7 +1749,7 @@ static int shmem_swapin_folio(struct inode *inode, pgoff_t index,
 	}
 	folio = page_folio(page);
 
-	/* We have to do this with page locked to prevent races */
+	/* We have to do this with folio locked to prevent races */
 	folio_lock(folio);
 	if (!folio_test_swapcache(folio) ||
 	    folio_swap_entry(folio).val != swap.val ||
-- 
2.23.0