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authorLinus Walleij <linus.walleij@linaro.org>2017-01-30 16:39:20 +0300
committerLinus Walleij <linus.walleij@linaro.org>2017-01-30 16:39:20 +0300
commit7f36f5d11cda050b118f76d774151427a18d15ef (patch)
tree9d4fa3b830785b767525a5e6a065fe4297cd8112 /drivers/net/xen-netback
parent2b24efa8e5c5042b0f126c09622b3e9e3c86a4fa (diff)
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
downloadlinux-7f36f5d11cda050b118f76d774151427a18d15ef.tar.xz
Merge tag 'v4.10-rc6' into devel
Linux 4.10-rc6 Resolved conflicts in: drivers/pinctrl/pinctrl-amd.c drivers/pinctrl/samsung/pinctrl-exynos.c
Diffstat (limited to 'drivers/net/xen-netback')
-rw-r--r--drivers/net/xen-netback/interface.c6
-rw-r--r--drivers/net/xen-netback/xenbus.c13
2 files changed, 17 insertions, 2 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index e30ffd29b7e9..579521327b03 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -221,18 +221,18 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev)
{
struct xenvif *vif = netdev_priv(dev);
struct xenvif_queue *queue = NULL;
- unsigned int num_queues = vif->num_queues;
unsigned long rx_bytes = 0;
unsigned long rx_packets = 0;
unsigned long tx_bytes = 0;
unsigned long tx_packets = 0;
unsigned int index;
+ spin_lock(&vif->lock);
if (vif->queues == NULL)
goto out;
/* Aggregate tx and rx stats from each queue */
- for (index = 0; index < num_queues; ++index) {
+ for (index = 0; index < vif->num_queues; ++index) {
queue = &vif->queues[index];
rx_bytes += queue->stats.rx_bytes;
rx_packets += queue->stats.rx_packets;
@@ -241,6 +241,8 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev)
}
out:
+ spin_unlock(&vif->lock);
+
vif->dev->stats.rx_bytes = rx_bytes;
vif->dev->stats.rx_packets = rx_packets;
vif->dev->stats.tx_bytes = tx_bytes;
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 3124eaec9427..85b742e1c42f 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -493,11 +493,22 @@ static int backend_create_xenvif(struct backend_info *be)
static void backend_disconnect(struct backend_info *be)
{
if (be->vif) {
+ unsigned int queue_index;
+
xen_unregister_watchers(be->vif);
#ifdef CONFIG_DEBUG_FS
xenvif_debugfs_delif(be->vif);
#endif /* CONFIG_DEBUG_FS */
xenvif_disconnect_data(be->vif);
+ for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
+ xenvif_deinit_queue(&be->vif->queues[queue_index]);
+
+ spin_lock(&be->vif->lock);
+ vfree(be->vif->queues);
+ be->vif->num_queues = 0;
+ be->vif->queues = NULL;
+ spin_unlock(&be->vif->lock);
+
xenvif_disconnect_ctrl(be->vif);
}
}
@@ -1034,6 +1045,8 @@ static void connect(struct backend_info *be)
err:
if (be->vif->num_queues > 0)
xenvif_disconnect_data(be->vif); /* Clean up existing queues */
+ for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
+ xenvif_deinit_queue(&be->vif->queues[queue_index]);
vfree(be->vif->queues);
be->vif->queues = NULL;
be->vif->num_queues = 0;