[PATCH v2 06/12] mm/swapfile.c: update the code comment above swap_count_continued()

[Baoquan He <bhe@redhat.com>]

Now, swap_count_continued() has two callers, __swap_duplicate() and
__swap_entry_free_locked(), the relevant code comment is stale.
Update it to reflect the current situation.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
v1->v2:
- Update the code comment according to Kairui's comment.

 mm/swapfile.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index bf284ba16198..f6cc169f59d9 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3789,8 +3789,8 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask)
  * into, carry if so, or else fail until a new continuation page is allocated;
  * when the original swap_map count is decremented from 0 with continuation,
  * borrow from the continuation and report whether it still holds more.
- * Called while __swap_duplicate() or swap_entry_free() holds swap or cluster
- * lock.
+ * Called while __swap_duplicate() or caller of __swap_entry_free_locked()
+ * holds cluster lock.
  */
 static bool swap_count_continued(struct swap_info_struct *si,
 				 pgoff_t offset, unsigned char count)
-- 
2.41.0