p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

dev_ioctl: add missing NETDEV_CHANGE_TX_QUEUE_LEN event notification 

When changing dev tx_queue_len via netlink or net-sysfs,
a NETDEV_CHANGE_TX_QUEUE_LEN event notification will be
called.

But dev_ioctl missed this event notification, which could
cause no userspace notification would be sent.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-10-16 19:43:15 +08:00 committed by David S. Miller
parent c019b5166e
commit 823038ca03
1 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
net/core/dev_ioctl.c
View File

@ -303,7 +303,18 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
case SIOCSIFTXQLEN:
if (ifr->ifr_qlen < 0)
return -EINVAL;
if (dev->tx_queue_len ^ ifr->ifr_qlen) {
unsigned int orig_len = dev->tx_queue_len;
dev->tx_queue_len = ifr->ifr_qlen;
err = call_netdevice_notifiers(
NETDEV_CHANGE_TX_QUEUE_LEN, dev);
err = notifier_to_errno(err);
if (err) {
dev->tx_queue_len = orig_len;
return err;
}
}
return 0;
case SIOCSIFNAME: