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| author |   Michael S. Tsirkin <mst@redhat.com> | 2021-04-13 01:35:26 -0400 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-03 04:51:17 -0400 |
| commit | 5a2f966d0f3fa0ef6dada7ab9eda74cacee96b8a (patch) | |
| tree | 4a35a4b359dbc99a4a6f7d5d43f6513c0a326fc3 /lib/test_hmm_uapi.h | |
| parent | vdpa/mlx5: Add support for running with virtio_vdpa (diff) | |
| download | wireguard-linux-5a2f966d0f3fa0ef6dada7ab9eda74cacee96b8a.tar.xz wireguard-linux-5a2f966d0f3fa0ef6dada7ab9eda74cacee96b8a.zip | |
virtio_net: move tx vq operation under tx queue lock
It's unsafe to operate a vq from multiple threads.
Unfortunately this is exactly what we do when invoking
clean tx poll from rx napi.
Same happens with napi-tx even without the
opportunistic cleaning from the receive interrupt: that races
with processing the vq in start_xmit.
As a fix move everything that deals with the vq to under tx lock.
Fixes: b92f1e6751a6 ("virtio-net: transmit napi")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'lib/test_hmm_uapi.h')
0 files changed, 0 insertions, 0 deletions