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net: restore call to netdev_queue_numa_node_write when resetting XPS

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Before commit 80d19669ec ("net: Refactor XPS for CPUs and Rx queues"),
netif_reset_xps_queues() did netdev_queue_numa_node_write() for all the
queues being reset. Now, this is only done when the "active" variable in
clean_xps_maps() is false, ie when on all the CPUs, there's no active
XPS mapping left.

Fixes: 80d19669ec ("net: Refactor XPS for CPUs and Rx queues")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sabrina Dubroca 2018-11-29 14:14:48 +01:00 committed by David S. Miller
parent d7f7e0018b
commit f28c020fb4
1 changed files with 10 additions and 8 deletions
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18
net/core/dev.c
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@ -2187,18 +2187,20 @@ static void clean_xps_maps(struct net_device *dev, const unsigned long *mask,
active |= remove_xps_queue_cpu(dev, dev_maps, j, offset,
count);
if (!active) {
if (is_rxqs_map) {
if (is_rxqs_map)
RCU_INIT_POINTER(dev->xps_rxqs_map, NULL);
} else {
else
RCU_INIT_POINTER(dev->xps_cpus_map, NULL);
for (i = offset + (count - 1); count--; i--)
netdev_queue_numa_node_write(
netdev_get_tx_queue(dev, i),
NUMA_NO_NODE);
}
kfree_rcu(dev_maps, rcu);
}
if (!is_rxqs_map) {
for (i = offset + (count - 1); count--; i--) {
netdev_queue_numa_node_write(
netdev_get_tx_queue(dev, i),
NUMA_NO_NODE);
}
}
}
static void netif_reset_xps_queues(struct net_device *dev, u16 offset,