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| author | David S. Miller <davem@davemloft.net> | 2018-02-20 02:46:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-20 02:46:11 +0300 |
| commit | f5c0c6f4299f870f074235fbf552ecf957fc249c (patch) | |
| tree | 6b46b9c0b271185b6f98fab350c3891042e729b1 /net/core | |
| parent | 26736a08ee0fb89a4f09bfb2c9f0805028ff63aa (diff) | |
| parent | 79c0ef3e85c015b0921a8fd5dd539d1480e9cd6c (diff) | |
| download | linux-f5c0c6f4299f870f074235fbf552ecf957fc249c.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 4bd4ad7ffda4..5bdcc5a161fe 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2382,8 +2382,11 @@ EXPORT_SYMBOL(netdev_set_num_tc); */ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq) { + bool disabling; int rc; + disabling = txq < dev->real_num_tx_queues; + if (txq < 1 || txq > dev->num_tx_queues) return -EINVAL; @@ -2399,15 +2402,19 @@ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq) if (dev->num_tc) netif_setup_tc(dev, txq); - if (txq < dev->real_num_tx_queues) { + dev->real_num_tx_queues = txq; + + if (disabling) { + synchronize_net(); qdisc_reset_all_tx_gt(dev, txq); #ifdef CONFIG_XPS netif_reset_xps_queues_gt(dev, txq); #endif } + } else { + dev->real_num_tx_queues = txq; } - dev->real_num_tx_queues = txq; return 0; } EXPORT_SYMBOL(netif_set_real_num_tx_queues); |