diff options
author | James Bottomley <JBottomley@Parallels.com> | 2013-06-26 23:08:22 -0700 |
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committer | James Bottomley <JBottomley@Parallels.com> | 2013-06-26 23:08:22 -0700 |
commit | a9e94ec3504ead4b87a929bc57f5aa99a6590437 (patch) | |
tree | b6e7aaec0e844dc066e93296a85e5769542ef525 /drivers/net/tun.c | |
parent | 36a279686bc02d340eb213a9f2a0b67e50de64b4 (diff) | |
parent | 2884d4230867c8a46cf701214051e923301e7429 (diff) |
Merge tag 'fcoe1' into fixes
This patch fixes a critical bug that was introduced in 3.9
related to VLAN tagging FCoE frames.
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r-- | drivers/net/tun.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index f042b0373e5..bfa9bb48e42 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -352,7 +352,7 @@ static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb) u32 numqueues = 0; rcu_read_lock(); - numqueues = tun->numqueues; + numqueues = ACCESS_ONCE(tun->numqueues); txq = skb_get_rxhash(skb); if (txq) { @@ -1585,6 +1585,10 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) else return -EINVAL; + if (!!(ifr->ifr_flags & IFF_MULTI_QUEUE) != + !!(tun->flags & TUN_TAP_MQ)) + return -EINVAL; + if (tun_not_capable(tun)) return -EPERM; err = security_tun_dev_open(tun->security); @@ -2155,6 +2159,8 @@ static int tun_chr_open(struct inode *inode, struct file * file) set_bit(SOCK_EXTERNALLY_ALLOCATED, &tfile->socket.flags); INIT_LIST_HEAD(&tfile->next); + sock_set_flag(&tfile->sk, SOCK_ZEROCOPY); + return 0; } |