*
*/
#include <linux/kernel.h>
+#include <linux/gfp.h>
#include <net/sock.h>
#include <linux/in.h>
#include <linux/list.h>
* connection.
* Therefore, we never retransmit messages with RDMA ops.
*/
- if (rm->m_rdma_op
- && test_bit(RDS_MSG_RETRANSMITTED, &rm->m_flags)) {
+ if (rm->m_rdma_op &&
+ test_bit(RDS_MSG_RETRANSMITTED, &rm->m_flags)) {
spin_lock_irqsave(&conn->c_lock, flags);
if (test_and_clear_bit(RDS_MSG_ON_CONN, &rm->m_flags))
list_move(&rm->m_conn_item, &to_be_dropped);
/* Require an ACK every once in a while */
len = ntohl(rm->m_inc.i_hdr.h_len);
- if (conn->c_unacked_packets == 0
- || conn->c_unacked_bytes < len) {
+ if (conn->c_unacked_packets == 0 ||
+ conn->c_unacked_bytes < len) {
__set_bit(RDS_MSG_ACK_REQUIRED, &rm->m_flags);
conn->c_unacked_packets = rds_sysctl_max_unacked_packets;
spin_lock(&rm->m_rs_lock);
ro = rm->m_rdma_op;
- if (test_bit(RDS_MSG_ON_SOCK, &rm->m_flags)
- && ro && ro->r_notify && ro->r_notifier) {
+ if (test_bit(RDS_MSG_ON_SOCK, &rm->m_flags) &&
+ ro && ro->r_notify && ro->r_notifier) {
notifier = ro->r_notifier;
rs = rm->m_rs;
sock_hold(rds_rs_to_sk(rs));
*/
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);
* 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;
list_del_init(&rm->m_sock_item);
rds_send_sndbuf_remove(rs, rm);
- if (ro && ro->r_notifier
- && (status || ro->r_notify)) {
+ if (ro && ro->r_notifier && (status || ro->r_notify)) {
notifier = ro->r_notifier;
list_add_tail(¬ifier->n_list,
&rs->rs_notify_queue);
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);
}
/*
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 */
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 */
/* 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);
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);
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 */
if (ret)
goto out;
- if ((rm->m_rdma_cookie || rm->m_rdma_op)
- && conn->c_trans->xmit_rdma == NULL) {
+ if ((rm->m_rdma_cookie || rm->m_rdma_op) &&
+ conn->c_trans->xmit_rdma == NULL) {
if (printk_ratelimit())
printk(KERN_NOTICE "rdma_op %p conn xmit_rdma %p\n",
rm->m_rdma_op, conn->c_trans->xmit_rdma);
* have scheduled a delayed reconnect however - in this case
* we should not interfere.
*/
- if (rds_conn_state(conn) == RDS_CONN_DOWN
- && !test_and_set_bit(RDS_RECONNECT_PENDING, &conn->c_flags))
+ if (rds_conn_state(conn) == RDS_CONN_DOWN &&
+ !test_and_set_bit(RDS_RECONNECT_PENDING, &conn->c_flags))
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)) {
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,
* have scheduled a delayed reconnect however - in this case
* we should not interfere.
*/
- if (rds_conn_state(conn) == RDS_CONN_DOWN
- && !test_and_set_bit(RDS_RECONNECT_PENDING, &conn->c_flags))
+ if (rds_conn_state(conn) == RDS_CONN_DOWN &&
+ !test_and_set_bit(RDS_RECONNECT_PENDING, &conn->c_flags))
queue_delayed_work(rds_wq, &conn->c_conn_w, 0);
ret = rds_cong_wait(conn->c_fcong, dport, 1, NULL);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff