CIFS: Add SMB2 support for async requests

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 2f9950e..8672e49 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -209,6 +209,7 @@
 
 struct smb_version_operations smb21_operations = {
 	.setup_request = smb2_setup_request,
+	.setup_async_request = smb2_setup_async_request,
 	.check_receive = smb2_check_receive,
 	.add_credits = smb2_add_credits,
 	.set_credits = smb2_set_credits,