38 static inline int xprt_need_to_requeue(struct rpc_xprt *xprt)  in xprt_need_to_requeue()  argument
40 	return xprt->bc_alloc_count > 0;  in xprt_need_to_requeue()
43 static inline void xprt_inc_alloc_count(struct rpc_xprt *xprt, unsigned int n)  in xprt_inc_alloc_count()  argument
45 	xprt->bc_alloc_count += n;  in xprt_inc_alloc_count()
48 static inline int xprt_dec_alloc_count(struct rpc_xprt *xprt, unsigned int n)  in xprt_dec_alloc_count()  argument
50 	return xprt->bc_alloc_count -= n;  in xprt_dec_alloc_count()
88 int xprt_setup_backchannel(struct rpc_xprt *xprt, unsigned int min_reqs)  in xprt_setup_backchannel()  argument
119 		req->rq_xprt = xprt;  in xprt_setup_backchannel()
158 	spin_lock_bh(&xprt->bc_pa_lock);  in xprt_setup_backchannel()
159 	list_splice(&tmp_list, &xprt->bc_pa_list);  in xprt_setup_backchannel()
160 	xprt_inc_alloc_count(xprt, min_reqs);  in xprt_setup_backchannel()
161 	spin_unlock_bh(&xprt->bc_pa_lock);  in xprt_setup_backchannel()
189 void xprt_destroy_backchannel(struct rpc_xprt *xprt, unsigned int max_reqs)  in xprt_destroy_backchannel()  argument
198 	spin_lock_bh(&xprt->bc_pa_lock);  in xprt_destroy_backchannel()
199 	xprt_dec_alloc_count(xprt, max_reqs);  in xprt_destroy_backchannel()
200 	list_for_each_entry_safe(req, tmp, &xprt->bc_pa_list, rq_bc_pa_list) {  in xprt_destroy_backchannel()
207 	spin_unlock_bh(&xprt->bc_pa_lock);  in xprt_destroy_backchannel()
211 		list_empty(&xprt->bc_pa_list) ? "true" : "false");  in xprt_destroy_backchannel()
215 static struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt, __be32 xid)  in xprt_alloc_bc_request()  argument
220 	if (list_empty(&xprt->bc_pa_list))  in xprt_alloc_bc_request()
223 	req = list_first_entry(&xprt->bc_pa_list, struct rpc_rqst,  in xprt_alloc_bc_request()
230 	req->rq_connect_cookie = xprt->connect_cookie;  in xprt_alloc_bc_request()
242 	struct rpc_xprt *xprt = req->rq_xprt;  in xprt_free_bc_request()  local
246 	req->rq_connect_cookie = xprt->connect_cookie - 1;  in xprt_free_bc_request()
252 	if (!xprt_need_to_requeue(xprt)) {  in xprt_free_bc_request()
268 	spin_lock_bh(&xprt->bc_pa_lock);  in xprt_free_bc_request()
269 	list_add_tail(&req->rq_bc_pa_list, &xprt->bc_pa_list);  in xprt_free_bc_request()
270 	spin_unlock_bh(&xprt->bc_pa_lock);  in xprt_free_bc_request()
284 struct rpc_rqst *xprt_lookup_bc_request(struct rpc_xprt *xprt, __be32 xid)  in xprt_lookup_bc_request()  argument
288 	spin_lock(&xprt->bc_pa_lock);  in xprt_lookup_bc_request()
289 	list_for_each_entry(req, &xprt->bc_pa_list, rq_bc_pa_list) {  in xprt_lookup_bc_request()
290 		if (req->rq_connect_cookie != xprt->connect_cookie)  in xprt_lookup_bc_request()
295 	req = xprt_alloc_bc_request(xprt, xid);  in xprt_lookup_bc_request()
297 	spin_unlock(&xprt->bc_pa_lock);  in xprt_lookup_bc_request()
309 	struct rpc_xprt *xprt = req->rq_xprt;  in xprt_complete_bc_request()  local
310 	struct svc_serv *bc_serv = xprt->bc_serv;  in xprt_complete_bc_request()
312 	spin_lock(&xprt->bc_pa_lock);  in xprt_complete_bc_request()
314 	spin_unlock(&xprt->bc_pa_lock);  in xprt_complete_bc_request()