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-rw-r--r--net/rds/send.c40
1 files changed, 22 insertions, 18 deletions
diff --git a/net/rds/send.c b/net/rds/send.c
index f04b929ded92..9c1c6bcaa6c9 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)) {
@@ -911,7 +915,7 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
goto out;
}
- timeo = wait_event_interruptible_timeout(*sk->sk_sleep,
+ timeo = wait_event_interruptible_timeout(*sk_sleep(sk),
rds_send_queue_rm(rs, conn, rm,
rs->rs_bound_port,
dport,