leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mlx4_en: Fix a race at restart task

Browse Source 
The query whether the port is up or not should be done at
the execution of the restart task and not when it is queued.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yevgeny Petrilin 2009-04-20 04:26:05 +00:00 committed by David S. Miller
parent 9a4f92a603
commit 1e338db56e
1 changed files with 11 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/mlx4/en_netdev.c
View File

@ -348,11 +348,9 @@ static void mlx4_en_tx_timeout(struct net_device *dev)
if (netif_msg_timer(priv))
mlx4_warn(mdev, "Tx timeout called on port:%d\n", priv->port);
if (netif_carrier_ok(dev)) {
priv->port_stats.tx_timeout++;
mlx4_dbg(DRV, priv, "Scheduling watchdog\n");
queue_work(mdev->workqueue, &priv->watchdog_task);
}
priv->port_stats.tx_timeout++;
mlx4_dbg(DRV, priv, "Scheduling watchdog\n");
queue_work(mdev->workqueue, &priv->watchdog_task);
}
@ -761,9 +759,14 @@ static void mlx4_en_restart(struct work_struct *work)
struct net_device *dev = priv->dev;
mlx4_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
mlx4_en_stop_port(dev);
if (mlx4_en_start_port(dev))
mlx4_err(mdev, "Failed restarting port %d\n", priv->port);
mutex_lock(&mdev->state_lock);
if (priv->port_up) {
mlx4_en_stop_port(dev);
if (mlx4_en_start_port(dev))
mlx4_err(mdev, "Failed restarting port %d\n", priv->port);
}
mutex_unlock(&mdev->state_lock);
}