432 	int *credits;  in wait_for_free_credits()  local
446 	credits = server->ops->get_credits_field(server, optype);  in wait_for_free_credits()
448 	if (*credits <= 0 && optype == CIFS_ECHO_OP)  in wait_for_free_credits()
457 		*credits -= 1;  in wait_for_free_credits()
459 		scredits = *credits;  in wait_for_free_credits()
465 		cifs_dbg(FYI, "%s: remove %u credits total=%d\n",  in wait_for_free_credits()
482 		if (*credits < num_credits) {  in wait_for_free_credits()
483 			scredits = *credits;  in wait_for_free_credits()
488 				has_credits(server, credits, num_credits), t);  in wait_for_free_credits()
492 				scredits = *credits;  in wait_for_free_credits()
509 			 * credits to compound requests.  in wait_for_free_credits()
511 			 * starved for credits by single-credit requests.  in wait_for_free_credits()
514 			 * there are >MAX_COMPOUND credits available.  in wait_for_free_credits()
516 			 * credits in flight to avoid triggering this check  in wait_for_free_credits()
517 			 * for servers that are slow to hand out credits on  in wait_for_free_credits()
522 			    *credits <= MAX_COMPOUND) {  in wait_for_free_credits()
528 					has_credits(server, credits,  in wait_for_free_credits()
534 					scredits = *credits;  in wait_for_free_credits()
559 				*credits -= num_credits;  in wait_for_free_credits()
565 			scredits = *credits;  in wait_for_free_credits()
572 			cifs_dbg(FYI, "%s: remove %u credits total=%d\n",  in wait_for_free_credits()
591 	int *credits;  in wait_for_compound_request()  local
594 	credits = server->ops->get_credits_field(server, flags & CIFS_OP_MASK);  in wait_for_compound_request()
597 	scredits = *credits;  in wait_for_compound_request()
600 	if (*credits < num) {  in wait_for_compound_request()
603 		 * credits for other reasons (e.g. requests are coming out of  in wait_for_compound_request()
604 		 * order and the server delays granting more credits until it  in wait_for_compound_request()
606 		 * credits there may be situations when we try to send  in wait_for_compound_request()
607 		 * a compound request but we don't have enough credits. At this  in wait_for_compound_request()
609 		 * additional credits or fail the request. If at least one  in wait_for_compound_request()
611 		 * server will return enough credits to satisfy this compound  in wait_for_compound_request()
615 		 * stuck on waiting for credits.  in wait_for_compound_request()
635 		      size_t *num, struct cifs_credits *credits)  in cifs_wait_mtu_credits()  argument
638 	credits->value = 0;  in cifs_wait_mtu_credits()
639 	credits->instance = server->reconnect_instance;  in cifs_wait_mtu_credits()
669 	struct cifs_credits credits = { .value = 0, .instance = 0 };  in cifs_call_async()  local
679 		credits.value = 1;  in cifs_call_async()
680 		credits.instance = instance;  in cifs_call_async()
687 	 * We can't use credits obtained from the previous session to send this  in cifs_call_async()
688 	 * request. Check if there were reconnects after we obtained credits and  in cifs_call_async()
693 		add_credits_and_wake_if(server, &credits, optype);  in cifs_call_async()
700 		add_credits_and_wake_if(server, &credits, optype);  in cifs_call_async()
723 		revert_current_mid(server, mid->credits);  in cifs_call_async()
733 	add_credits_and_wake_if(server, &credits, optype);  in cifs_call_async()
783 	struct cifs_credits credits = {  in cifs_compound_callback()  local
788 	add_credits(server, &credits, mid->optype);  in cifs_compound_callback()
871 	struct cifs_credits credits[MAX_COMPOUND] = {  in compound_send_recv()  local
897 	 * credits if the server doesn't grant credits to the outstanding  in compound_send_recv()
908 		credits[i].value = 1;  in compound_send_recv()
909 		credits[i].instance = instance;  in compound_send_recv()
921 	 * All the parts of the compound chain belong obtained credits from the  in compound_send_recv()
922 	 * same session. We can not use credits obtained from the previous  in compound_send_recv()
924 	 * we obtained credits and return -EAGAIN in such cases to let callers  in compound_send_recv()
930 			add_credits(server, &credits[j], optype);  in compound_send_recv()
944 				add_credits(server, &credits[j], optype);  in compound_send_recv()
952 		 * to calculate credits properly. Wake up this thread only when  in compound_send_recv()
974 	 * will not receive a response to - return credits back  in compound_send_recv()
978 			add_credits(server, &credits[i], optype);  in compound_send_recv()
984 	 * that any credits taken from the server structure on the client have  in compound_send_recv()
986 	 * we will collect credits granted by the server in the mid callbacks  in compound_send_recv()
987 	 * and add those credits to the server structure.  in compound_send_recv()
1020 				credits[i].value = 0;  in compound_send_recv()
1192 	/* set up first two iov for signature check and to get credits */  in cifs_readv_receive()