diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index d1da2ee9e6dbced92e2aaaddb0ae635f5b4d9bab..ac669a10c62f757d0ced950d2a9caf8aee958b24 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1708,7 +1708,7 @@ xfs_buftarg_isolate(
 	 * zero. If the value is already zero, we need to reclaim the
 	 * buffer, otherwise it gets another trip through the LRU.
 	 */
-	if (!atomic_add_unless(&bp->b_lru_ref, -1, 0)) {
+	if (atomic_add_unless(&bp->b_lru_ref, -1, 0)) {
 		spin_unlock(&bp->b_lock);
 		return LRU_ROTATE;
 	}