495 	int *credits;  in wait_for_free_credits()  local
509 	credits = server->ops->get_credits_field(server, optype);  in wait_for_free_credits()
511 	if (*credits <= 0 && optype == CIFS_ECHO_OP)  in wait_for_free_credits()
520 		*credits -= 1;  in wait_for_free_credits()
522 		scredits = *credits;  in wait_for_free_credits()
528 		cifs_dbg(FYI, "%s: remove %u credits total=%d\n",  in wait_for_free_credits()
545 		if (*credits < num_credits) {  in wait_for_free_credits()
546 			scredits = *credits;  in wait_for_free_credits()
551 				has_credits(server, credits, num_credits), t);  in wait_for_free_credits()
555 				scredits = *credits;  in wait_for_free_credits()
572 			 * credits to compound requests.  in wait_for_free_credits()
574 			 * starved for credits by single-credit requests.  in wait_for_free_credits()
577 			 * there are >MAX_COMPOUND credits available.  in wait_for_free_credits()
579 			 * credits in flight to avoid triggering this check  in wait_for_free_credits()
580 			 * for servers that are slow to hand out credits on  in wait_for_free_credits()
585 			    *credits <= MAX_COMPOUND) {  in wait_for_free_credits()
591 					has_credits(server, credits,  in wait_for_free_credits()
597 					scredits = *credits;  in wait_for_free_credits()
622 				*credits -= num_credits;  in wait_for_free_credits()
628 			scredits = *credits;  in wait_for_free_credits()
635 			cifs_dbg(FYI, "%s: remove %u credits total=%d\n",  in wait_for_free_credits()
655 	int *credits;  in wait_for_compound_request()  local
658 	credits = server->ops->get_credits_field(server, flags & CIFS_OP_MASK);  in wait_for_compound_request()
661 	scredits = *credits;  in wait_for_compound_request()
664 	if (*credits < num) {  in wait_for_compound_request()
667 		 * credits for other reasons (e.g. requests are coming out of  in wait_for_compound_request()
668 		 * order and the server delays granting more credits until it  in wait_for_compound_request()
670 		 * credits there may be situations when we try to send  in wait_for_compound_request()
671 		 * a compound request but we don't have enough credits. At this  in wait_for_compound_request()
673 		 * additional credits or fail the request. If at least one  in wait_for_compound_request()
675 		 * server will return enough credits to satisfy this compound  in wait_for_compound_request()
679 		 * stuck on waiting for credits.  in wait_for_compound_request()
699 		      size_t *num, struct cifs_credits *credits)  in cifs_wait_mtu_credits()  argument
702 	credits->value = 0;  in cifs_wait_mtu_credits()
703 	credits->instance = server->reconnect_instance;  in cifs_wait_mtu_credits()
794 	struct cifs_credits credits = { .value = 0, .instance = 0 };  in cifs_call_async()  local
804 		credits.value = 1;  in cifs_call_async()
805 		credits.instance = instance;  in cifs_call_async()
812 	 * We can't use credits obtained from the previous session to send this  in cifs_call_async()
813 	 * request. Check if there were reconnects after we obtained credits and  in cifs_call_async()
818 		add_credits_and_wake_if(server, &credits, optype);  in cifs_call_async()
825 		add_credits_and_wake_if(server, &credits, optype);  in cifs_call_async()
848 		revert_current_mid(server, mid->credits);  in cifs_call_async()
858 	add_credits_and_wake_if(server, &credits, optype);  in cifs_call_async()
995 	struct cifs_credits credits = {  in cifs_compound_callback()  local
1000 	add_credits(server, &credits, mid->optype);  in cifs_compound_callback()
1083 	struct cifs_credits credits[MAX_COMPOUND] = {  in compound_send_recv()  local
1109 	 * credits if the server doesn't grant credits to the outstanding  in compound_send_recv()
1120 		credits[i].value = 1;  in compound_send_recv()
1121 		credits[i].instance = instance;  in compound_send_recv()
1133 	 * All the parts of the compound chain belong obtained credits from the  in compound_send_recv()
1134 	 * same session. We can not use credits obtained from the previous  in compound_send_recv()
1136 	 * we obtained credits and return -EAGAIN in such cases to let callers  in compound_send_recv()
1142 			add_credits(server, &credits[j], optype);  in compound_send_recv()
1156 				add_credits(server, &credits[j], optype);  in compound_send_recv()
1164 		 * to calculate credits properly. Wake up this thread only when  in compound_send_recv()
1186 	 * will not receive a response to - return credits back  in compound_send_recv()
1190 			add_credits(server, &credits[i], optype);  in compound_send_recv()
1196 	 * that any credits taken from the server structure on the client have  in compound_send_recv()
1198 	 * we will collect credits granted by the server in the mid callbacks  in compound_send_recv()
1199 	 * and add those credits to the server structure.  in compound_send_recv()
1233 				credits[i].value = 0;  in compound_send_recv()
1367 	struct cifs_credits credits = { .value = 1, .instance = 0 };  in SendReceive()  local
1397 	rc = wait_for_free_request(server, flags, &credits.instance);  in SendReceive()
1411 		add_credits(server, &credits, 0);  in SendReceive()
1443 			add_credits(server, &credits, 0);  in SendReceive()
1451 		add_credits(server, &credits, 0);  in SendReceive()
1467 	add_credits(server, &credits, 0);  in SendReceive()
1743 	/* set up first two iov for signature check and to get credits */  in cifs_readv_receive()