CIFS: Setup async request in ops struct

Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: NSteve French <smfrench@gmail.com>

fs/cifs/cifsglob.h

@@ -173,6 +173,9 @@ struct smb_version_operations {
 	/* setup request: allocate mid, sign message */
 	int (*setup_request)(struct cifs_ses *, struct kvec *, unsigned int,
 			     struct mid_q_entry **);
+	/* setup async request: allocate mid, sign message */
+	int (*setup_async_request)(struct TCP_Server_Info *, struct kvec *,
+				   unsigned int, struct mid_q_entry **);
 	/* check response: verify signature, map error */
 	int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *,
 			     bool);

fs/cifs/cifsproto.h

@@ -78,6 +78,8 @@ extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
 			    char *in_buf, int flags);
 extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
 			      struct mid_q_entry **);
+extern int cifs_setup_async_request(struct TCP_Server_Info *, struct kvec *,
+				    unsigned int, struct mid_q_entry **);
 extern int cifs_check_receive(struct mid_q_entry *mid,
 			struct TCP_Server_Info *server, bool log_error);
 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,

fs/cifs/smb1ops.c

@@ -524,6 +524,7 @@ struct smb_version_operations smb1_operations = {
 	.send_cancel = send_nt_cancel,
 	.compare_fids = cifs_compare_fids,
 	.setup_request = cifs_setup_request,
+	.setup_async_request = cifs_setup_async_request,
 	.check_receive = cifs_check_receive,
 	.add_credits = cifs_add_credits,
 	.set_credits = cifs_set_credits,

fs/cifs/transport.c

@@ -345,7 +345,7 @@ wait_for_response(struct TCP_Server_Info *server, struct mid_q_entry *midQ)
 	return 0;
 }
 
-static int
+int
 cifs_setup_async_request(struct TCP_Server_Info *server, struct kvec *iov,
 			 unsigned int nvec, struct mid_q_entry **ret_mid)
 {
@@ -391,7 +391,7 @@ cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
 		return rc;
 
 	mutex_lock(&server->srv_mutex);
-	rc = cifs_setup_async_request(server, iov, nvec, &mid);
+	rc = server->ops->setup_async_request(server, iov, nvec, &mid);
 	if (rc) {
 		mutex_unlock(&server->srv_mutex);
 		add_credits(server, 1, optype);