UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

staging: hv: use delayed_work for netvsc_send_garp() 

Instead of sleeping in a scheduled work, we now use delayed_work
for netvsc_send_garp().

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Haiyang Zhang 2011-05-27 06:21:55 -07:00 committed by Greg Kroah-Hartman
parent 729a28495d
commit 122a5f6410
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/staging/hv/netvsc_drv.c
View File

@ -46,7 +46,7 @@ struct net_device_context {
/* point back to our device context */
struct hv_device *device_ctx;
unsigned long avail;
struct work_struct work;
struct delayed_work dwork;
};
@ -217,7 +217,7 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj,
netif_wake_queue(net);
netif_notify_peers(net);
ndev_ctx = netdev_priv(net);
schedule_work(&ndev_ctx->work);
schedule_delayed_work(&ndev_ctx->dwork, msecs_to_jiffies(20));
} else {
netif_carrier_off(net);
netif_stop_queue(net);
@ -315,7 +315,7 @@ static const struct net_device_ops device_ops = {
* Send GARP packet to network peers after migrations.
* After Quick Migration, the network is not immediately operational in the
* current context when receiving RNDIS_STATUS_MEDIA_CONNECT event. So, add
* another netif_notify_peers() into a scheduled work, otherwise GARP packet
* another netif_notify_peers() into a delayed work, otherwise GARP packet
* will not be sent after quick migration, and cause network disconnection.
*/
static void netvsc_send_garp(struct work_struct *w)
@ -323,8 +323,7 @@ static void netvsc_send_garp(struct work_struct *w)
struct net_device_context *ndev_ctx;
struct net_device *net;
msleep(20);
ndev_ctx = container_of(w, struct net_device_context, work);
ndev_ctx = container_of(w, struct net_device_context, dwork.work);
net = dev_get_drvdata(&ndev_ctx->device_ctx->device);
netif_notify_peers(net);
}
@ -348,7 +347,7 @@ static int netvsc_probe(struct hv_device *dev)
net_device_ctx->device_ctx = dev;
net_device_ctx->avail = ring_size;
dev_set_drvdata(&dev->device, net);
INIT_WORK(&net_device_ctx->work, netvsc_send_garp);
INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_send_garp);
/* Notify the netvsc driver of the new device */
device_info.ring_size = ring_size;
@ -387,12 +386,16 @@ static int netvsc_probe(struct hv_device *dev)
static int netvsc_remove(struct hv_device *dev)
{
struct net_device *net = dev_get_drvdata(&dev->device);
struct net_device_context *ndev_ctx;
if (net == NULL) {
dev_err(&dev->device, "No net device to remove\n");
return 0;
}
ndev_ctx = netdev_priv(net);
cancel_delayed_work_sync(&ndev_ctx->dwork);
/* Stop outbound asap */
netif_stop_queue(net);