virtio_net: Add a lock for per queue RX coalesce

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Once the RTNL locking around the control buffer is removed there can be
contention on the per queue RX interrupt coalescing data. Use a mutex
per queue. A mutex is required because virtnet_send_command can sleep.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: Heng Qi <hengqi@linux.alibaba.com>
Tested-by: Heng Qi <hengqi@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Daniel Jurgens 2024-05-03 23:24:44 +03:00 • committed by Paolo Abeni

parent 650d77c51e

commit 4d4ac2ecec

1 changed files with 41 additions and 12 deletions

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drivers/net/virtio_net.c

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