diff options
| -rw-r--r-- | net/sunrpc/svcsock.c | 94 |
1 files changed, 48 insertions, 46 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index c47bede754e..d95a0c894d4 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -5,7 +5,7 @@ * * The server scheduling algorithm does not always distribute the load * evenly when servicing a single client. May need to modify the - * svc_sock_enqueue procedure... + * svc_xprt_enqueue procedure... * * TCP support is largely untested and may be a little slow. The problem * is that we currently do two separate recvfrom's, one for the 4-byte @@ -63,7 +63,7 @@ * providing that certain rules are followed: * * XPT_CONN, XPT_DATA, can be set or cleared at any time. - * after a set, svc_sock_enqueue must be called. + * after a set, svc_xprt_enqueue must be called. * after a clear, the socket must be read/accepted * if this succeeds, it must be set again. * XPT_CLOSE can set at any time. It is never cleared. @@ -212,22 +212,21 @@ static void svc_release_skb(struct svc_rqst *rqstp) * processes, wake 'em up. * */ -static void -svc_sock_enqueue(struct svc_sock *svsk) +void svc_xprt_enqueue(struct svc_xprt *xprt) { - struct svc_serv *serv = svsk->sk_xprt.xpt_server; + struct svc_serv *serv = xprt->xpt_server; struct svc_pool *pool; struct svc_rqst *rqstp; int cpu; - if (!(svsk->sk_xprt.xpt_flags & + if (!(xprt->xpt_flags & ((1<<XPT_CONN)|(1<<XPT_DATA)|(1<<XPT_CLOSE)|(1<<XPT_DEFERRED)))) return; - if (test_bit(XPT_DEAD, &svsk->sk_xprt.xpt_flags)) + if (test_bit(XPT_DEAD, &xprt->xpt_flags)) return; cpu = get_cpu(); - pool = svc_pool_for_cpu(svsk->sk_xprt.xpt_server, cpu); + pool = svc_pool_for_cpu(xprt->xpt_server, cpu); put_cpu(); spin_lock_bh(&pool->sp_lock); @@ -235,11 +234,12 @@ svc_sock_enqueue(struct svc_sock *svsk) if (!list_empty(&pool->sp_threads) && !list_empty(&pool->sp_sockets)) printk(KERN_ERR - "svc_sock_enqueue: threads and sockets both waiting??\n"); + "svc_xprt_enqueue: " + "threads and transports both waiting??\n"); - if (test_bit(XPT_DEAD, &svsk->sk_xprt.xpt_flags)) { + if (test_bit(XPT_DEAD, &xprt->xpt_flags)) { /* Don't enqueue dead sockets */ - dprintk("svc: socket %p is dead, not enqueued\n", svsk->sk_sk); + dprintk("svc: transport %p is dead, not enqueued\n", xprt); goto out_unlock; } @@ -248,28 +248,29 @@ svc_sock_enqueue(struct svc_sock *svsk) * on the idle list. We update XPT_BUSY atomically because * it also guards against trying to enqueue the svc_sock twice. */ - if (test_and_set_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags)) { + if (test_and_set_bit(XPT_BUSY, &xprt->xpt_flags)) { /* Don't enqueue socket while already enqueued */ - dprintk("svc: socket %p busy, not enqueued\n", svsk->sk_sk); + dprintk("svc: transport %p busy, not enqueued\n", xprt); goto out_unlock; } - BUG_ON(svsk->sk_xprt.xpt_pool != NULL); - svsk->sk_xprt.xpt_pool = pool; + BUG_ON(xprt->xpt_pool != NULL); + xprt->xpt_pool = pool; /* Handle pending connection */ - if (test_bit(XPT_CONN, &svsk->sk_xprt.xpt_flags)) + if (test_bit(XPT_CONN, &xprt->xpt_flags)) goto process; /* Handle close in-progress */ - if (test_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags)) + if (test_bit(XPT_CLOSE, &xprt->xpt_flags)) goto process; /* Check if we have space to reply to a request */ - if (!svsk->sk_xprt.xpt_ops->xpo_has_wspace(&svsk->sk_xprt)) { + if (!xprt->xpt_ops->xpo_has_wspace(xprt)) { /* Don't enqueue while not enough space for reply */ - dprintk("svc: no write space, socket %p not enqueued\n", svsk); - svsk->sk_xprt.xpt_pool = NULL; - clear_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags); + dprintk("svc: no write space, transport %p not enqueued\n", + xprt); + xprt->xpt_pool = NULL; + clear_bit(XPT_BUSY, &xprt->xpt_flags); goto out_unlock; } @@ -278,28 +279,29 @@ svc_sock_enqueue(struct svc_sock *svsk) rqstp = list_entry(pool->sp_threads.next, struct svc_rqst, rq_list); - dprintk("svc: socket %p served by daemon %p\n", - svsk->sk_sk, rqstp); + dprintk("svc: transport %p served by daemon %p\n", + xprt, rqstp); svc_thread_dequeue(pool, rqstp); - if (rqstp->rq_sock) + if (rqstp->rq_xprt) printk(KERN_ERR - "svc_sock_enqueue: server %p, rq_sock=%p!\n", - rqstp, rqstp->rq_sock); - rqstp->rq_sock = svsk; - svc_xprt_get(&svsk->sk_xprt); + "svc_xprt_enqueue: server %p, rq_xprt=%p!\n", + rqstp, rqstp->rq_xprt); + rqstp->rq_xprt = xprt; + svc_xprt_get(xprt); rqstp->rq_reserved = serv->sv_max_mesg; - atomic_add(rqstp->rq_reserved, &svsk->sk_xprt.xpt_reserved); - BUG_ON(svsk->sk_xprt.xpt_pool != pool); + atomic_add(rqstp->rq_reserved, &xprt->xpt_reserved); + BUG_ON(xprt->xpt_pool != pool); wake_up(&rqstp->rq_wait); } else { - dprintk("svc: socket %p put into queue\n", svsk->sk_sk); - list_add_tail(&svsk->sk_xprt.xpt_ready, &pool->sp_sockets); - BUG_ON(svsk->sk_xprt.xpt_pool != pool); + dprintk("svc: transport %p put into queue\n", xprt); + list_add_tail(&xprt->xpt_ready, &pool->sp_sockets); + BUG_ON(xprt->xpt_pool != pool); } out_unlock: spin_unlock_bh(&pool->sp_lock); } +EXPORT_SYMBOL_GPL(svc_xprt_enqueue); /* * Dequeue the first socket. Must be called with the pool->sp_lock held. @@ -333,7 +335,7 @@ svc_sock_received(struct svc_sock *svsk) { svsk->sk_xprt.xpt_pool = NULL; clear_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); } @@ -352,11 +354,11 @@ void svc_reserve(struct svc_rqst *rqstp, int space) space += rqstp->rq_res.head[0].iov_len; if (space < rqstp->rq_reserved) { - struct svc_sock *svsk = rqstp->rq_sock; - atomic_sub((rqstp->rq_reserved - space), &svsk->sk_xprt.xpt_reserved); + struct svc_xprt *xprt = rqstp->rq_xprt; + atomic_sub((rqstp->rq_reserved - space), &xprt->xpt_reserved); rqstp->rq_reserved = space; - svc_sock_enqueue(svsk); + svc_xprt_enqueue(xprt); } } @@ -684,7 +686,7 @@ svc_udp_data_ready(struct sock *sk, int count) svsk, sk, count, test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags)); set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); } if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) wake_up_interruptible(sk->sk_sleep); @@ -701,7 +703,7 @@ svc_write_space(struct sock *sk) if (svsk) { dprintk("svc: socket %p(inet %p), write_space busy=%d\n", svsk, sk, test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags)); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); } if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) { @@ -973,7 +975,7 @@ svc_tcp_listen_data_ready(struct sock *sk, int count_unused) if (sk->sk_state == TCP_LISTEN) { if (svsk) { set_bit(XPT_CONN, &svsk->sk_xprt.xpt_flags); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); } else printk("svc: socket %p: no user data\n", sk); } @@ -997,7 +999,7 @@ svc_tcp_state_change(struct sock *sk) printk("svc: socket %p: no user data\n", sk); else { set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); } if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) wake_up_interruptible_all(sk->sk_sleep); @@ -1012,7 +1014,7 @@ svc_tcp_data_ready(struct sock *sk, int count) sk, sk->sk_user_data); if (svsk) { set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); } if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) wake_up_interruptible(sk->sk_sleep); @@ -1298,7 +1300,7 @@ svc_tcp_sendto(struct svc_rqst *rqstp) (sent<0)?"got error":"sent only", sent, xbufp->len); set_bit(XPT_CLOSE, &rqstp->rq_sock->sk_xprt.xpt_flags); - svc_sock_enqueue(rqstp->rq_sock); + svc_xprt_enqueue(rqstp->rq_xprt); sent = -EAGAIN; } return sent; @@ -1476,7 +1478,7 @@ static void svc_check_conn_limits(struct svc_serv *serv) spin_unlock_bh(&serv->sv_lock); if (svsk) { - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); svc_xprt_put(&svsk->sk_xprt); } } @@ -1709,7 +1711,7 @@ svc_age_temp_sockets(unsigned long closure) svsk, get_seconds() - svsk->sk_lastrecv); /* a thread will dequeue and close it soon */ - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); svc_xprt_put(&svsk->sk_xprt); } @@ -1991,7 +1993,7 @@ static void svc_revisit(struct cache_deferred_req *dreq, int too_many) list_add(&dr->handle.recent, &svsk->sk_deferred); spin_unlock(&svsk->sk_lock); set_bit(XPT_DEFERRED, &svsk->sk_xprt.xpt_flags); - svc_sock_enqueue(svsk); + svc_xprt_enqueue(&svsk->sk_xprt); svc_xprt_put(&svsk->sk_xprt); } |