[PATCH] mm/zswap: add LRU_STOP to comment about dropping the lru lock

[Alice Ryhl]

This function has been able to return LRU_STOP since commit b49547ade38a
("mm/zswap: stop lru list shrinking when encounter warm region"). To
reduce confusion, update the comment to also list LRU_STOP as an option.

Signed-off-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
---
 mm/zswap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index f6316b66fb23..9718c33f8192 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1156,7 +1156,7 @@ static enum lru_status shrink_memcg_cb(struct list_head *item, struct list_lru_o
 
 	/*
 	 * It's safe to drop the lock here because we return either
-	 * LRU_REMOVED_RETRY or LRU_RETRY.
+	 * LRU_REMOVED_RETRY, LRU_RETRY or LRU_STOP.
 	 */
 	spin_unlock(&l->lock);
 

---
base-commit: aaf20f870da056752f6386693cc0d8e25421ef35
change-id: 20241127-lru-stop-comment-09dab2427b6e

Best regards,
-- 
Alice Ryhl <aliceryhl@xxxxxxxxxx>