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drbd: Limit the time we are waiting for the first packet on an accepted socket

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Before the patch
'drbd: Keep the listening socket open while trying to connect to the peer'

the newly created socket inherited the receive timeout from the listen
socket. The listen socket had a receive timeout of connect-intervall
+- 30% random jitter.

The real issue is that after the mentioned patch we had no timeout at all.
Now use 4 times the ping-timeout.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2014-03-18 14:40:13 +01:00
parent aaaba34576
commit 4920e37a9e
1 changed files with 10 additions and 0 deletions
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10
drivers/block/drbd/drbd_receiver.c
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@ -791,8 +791,18 @@ static int receive_first_packet(struct drbd_connection *connection, struct socke
{
unsigned int header_size = drbd_header_size(connection);
struct packet_info pi;
struct net_conf *nc;
int err;
rcu_read_lock();
nc = rcu_dereference(connection->net_conf);
if (!nc) {
rcu_read_unlock();
return -EIO;
}
sock->sk->sk_rcvtimeo = nc->ping_timeo * 4 * HZ / 10;
rcu_read_unlock();
err = drbd_recv_short(sock, connection->data.rbuf, header_size, 0);
if (err != header_size) {
if (err >= 0)