[PATCH 21/38] virtio_net: Replace deprecated CPU-hotplug functions.

From: Sebastian Andrzej Siewior
Date: Tue Aug 03 2021 - 10:18:05 EST


The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
Cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
drivers/net/virtio_net.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 56c3f85190938..ea551ac9e08db 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2208,14 +2208,14 @@ static int virtnet_set_channels(struct net_device *dev,
if (vi->rq[0].xdp_prog)
return -EINVAL;

- get_online_cpus();
+ cpus_read_lock();
err = _virtnet_set_queues(vi, queue_pairs);
if (err) {
- put_online_cpus();
+ cpus_read_unlock();
goto err;
}
virtnet_set_affinity(vi);
- put_online_cpus();
+ cpus_read_unlock();

netif_set_real_num_tx_queues(dev, queue_pairs);
netif_set_real_num_rx_queues(dev, queue_pairs);
@@ -2970,9 +2970,9 @@ static int init_vqs(struct virtnet_info *vi)
if (ret)
goto err_free;

- get_online_cpus();
+ cpus_read_lock();
virtnet_set_affinity(vi);
- put_online_cpus();
+ cpus_read_unlock();

return 0;

--
2.32.0