diff options
Diffstat (limited to 'net/rds/send.c')
| -rw-r--r-- | net/rds/send.c | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/net/rds/send.c b/net/rds/send.c index f04b929ded92..53d6795ac9d0 100644 --- a/net/rds/send.c +++ b/net/rds/send.c @@ -508,12 +508,13 @@ EXPORT_SYMBOL_GPL(rds_send_get_message); */ void rds_send_remove_from_sock(struct list_head *messages, int status) { - unsigned long flags = 0; /* silence gcc :P */ + unsigned long flags; struct rds_sock *rs = NULL; struct rds_message *rm; - local_irq_save(flags); while (!list_empty(messages)) { + int was_on_sock = 0; + rm = list_entry(messages->next, struct rds_message, m_conn_item); list_del_init(&rm->m_conn_item); @@ -528,20 +529,19 @@ void rds_send_remove_from_sock(struct list_head *messages, int status) * while we're messing with it. It does not prevent the * message from being removed from the socket, though. */ - spin_lock(&rm->m_rs_lock); + spin_lock_irqsave(&rm->m_rs_lock, flags); if (!test_bit(RDS_MSG_ON_SOCK, &rm->m_flags)) goto unlock_and_drop; if (rs != rm->m_rs) { if (rs) { - spin_unlock(&rs->rs_lock); rds_wake_sk_sleep(rs); sock_put(rds_rs_to_sk(rs)); } rs = rm->m_rs; - spin_lock(&rs->rs_lock); sock_hold(rds_rs_to_sk(rs)); } + spin_lock(&rs->rs_lock); if (test_and_clear_bit(RDS_MSG_ON_SOCK, &rm->m_flags)) { struct rds_rdma_op *ro = rm->m_rdma_op; @@ -558,21 +558,22 @@ void rds_send_remove_from_sock(struct list_head *messages, int status) notifier->n_status = status; rm->m_rdma_op->r_notifier = NULL; } - rds_message_put(rm); + was_on_sock = 1; rm->m_rs = NULL; } + spin_unlock(&rs->rs_lock); unlock_and_drop: - spin_unlock(&rm->m_rs_lock); + spin_unlock_irqrestore(&rm->m_rs_lock, flags); rds_message_put(rm); + if (was_on_sock) + rds_message_put(rm); } if (rs) { - spin_unlock(&rs->rs_lock); rds_wake_sk_sleep(rs); sock_put(rds_rs_to_sk(rs)); } - local_irq_restore(flags); } /* @@ -634,9 +635,6 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest) list_move(&rm->m_sock_item, &list); rds_send_sndbuf_remove(rs, rm); clear_bit(RDS_MSG_ON_SOCK, &rm->m_flags); - - /* If this is a RDMA operation, notify the app. */ - __rds_rdma_send_complete(rs, rm, RDS_RDMA_CANCELED); } /* order flag updates with the rs lock */ @@ -645,9 +643,6 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest) spin_unlock_irqrestore(&rs->rs_lock, flags); - if (wake) - rds_wake_sk_sleep(rs); - conn = NULL; /* now remove the messages from the conn list as needed */ @@ -655,6 +650,10 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest) /* We do this here rather than in the loop above, so that * we don't have to nest m_rs_lock under rs->rs_lock */ spin_lock_irqsave(&rm->m_rs_lock, flags2); + /* If this is a RDMA operation, notify the app. */ + spin_lock(&rs->rs_lock); + __rds_rdma_send_complete(rs, rm, RDS_RDMA_CANCELED); + spin_unlock(&rs->rs_lock); rm->m_rs = NULL; spin_unlock_irqrestore(&rm->m_rs_lock, flags2); @@ -683,6 +682,9 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest) if (conn) spin_unlock_irqrestore(&conn->c_lock, flags); + if (wake) + rds_wake_sk_sleep(rs); + while (!list_empty(&list)) { rm = list_entry(list.next, struct rds_message, m_sock_item); list_del_init(&rm->m_sock_item); @@ -816,7 +818,7 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, int ret = 0; int queued = 0, allocated_mr = 0; int nonblock = msg->msg_flags & MSG_DONTWAIT; - long timeo = sock_rcvtimeo(sk, nonblock); + long timeo = sock_sndtimeo(sk, nonblock); /* Mirror Linux UDP mirror of BSD error message compatibility */ /* XXX: Perhaps MSG_MORE someday */ @@ -895,8 +897,10 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, queue_delayed_work(rds_wq, &conn->c_conn_w, 0); ret = rds_cong_wait(conn->c_fcong, dport, nonblock, rs); - if (ret) + if (ret) { + rs->rs_seen_congestion = 1; goto out; + } while (!rds_send_queue_rm(rs, conn, rm, rs->rs_bound_port, dport, &queued)) { |