diff options
| author | Doug Ledford <dledford@redhat.com> | 2015-02-22 03:27:00 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-04-15 23:06:17 +0300 |
| commit | be7aa663fc1d9156798f5af3c60e6df45e1fe5de (patch) | |
| tree | b359b4429be35816f0abf9889942e02933c59e84 /drivers/infiniband | |
| parent | e135106fac9525352feb8e49077c8f46c3eaf288 (diff) | |
| download | linux-be7aa663fc1d9156798f5af3c60e6df45e1fe5de.tar.xz | |
IB/ipoib: change init sequence ordering
In preparation for using per device work queues, we need to move the
start of the neighbor thread task to after ipoib_ib_dev_init and move
the destruction of the neighbor task to before ipoib_ib_dev_cleanup.
Otherwise we will end up freeing our workqueue with work possibly
still on it.
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 657b89b1d291..98c738d827d1 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1269,15 +1269,13 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port) { struct ipoib_dev_priv *priv = netdev_priv(dev); - if (ipoib_neigh_hash_init(priv) < 0) - goto out; /* Allocate RX/TX "rings" to hold queued skbs */ priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring, GFP_KERNEL); if (!priv->rx_ring) { printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n", ca->name, ipoib_recvq_size); - goto out_neigh_hash_cleanup; + goto out; } priv->tx_ring = vzalloc(ipoib_sendq_size * sizeof *priv->tx_ring); @@ -1292,16 +1290,24 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port) if (ipoib_ib_dev_init(dev, ca, port)) goto out_tx_ring_cleanup; + /* + * Must be after ipoib_ib_dev_init so we can allocate a per + * device wq there and use it here + */ + if (ipoib_neigh_hash_init(priv) < 0) + goto out_dev_uninit; + return 0; +out_dev_uninit: + ipoib_ib_dev_cleanup(dev); + out_tx_ring_cleanup: vfree(priv->tx_ring); out_rx_ring_cleanup: kfree(priv->rx_ring); -out_neigh_hash_cleanup: - ipoib_neigh_hash_uninit(dev); out: return -ENOMEM; } @@ -1324,6 +1330,12 @@ void ipoib_dev_cleanup(struct net_device *dev) } unregister_netdevice_many(&head); + /* + * Must be before ipoib_ib_dev_cleanup or we delete an in use + * work queue + */ + ipoib_neigh_hash_uninit(dev); + ipoib_ib_dev_cleanup(dev); kfree(priv->rx_ring); @@ -1331,8 +1343,6 @@ void ipoib_dev_cleanup(struct net_device *dev) priv->rx_ring = NULL; priv->tx_ring = NULL; - - ipoib_neigh_hash_uninit(dev); } static const struct header_ops ipoib_header_ops = { |