diff options
| author |   Parav Pandit <parav@nvidia.com> | 2021-07-21 17:26:47 +0300 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2021-08-10 11:50:55 -0400 |
| commit | 0e566c8f0f2e8325e35f6f97e13cde5356b41814 (patch) | |
| tree | 2ab087e25fd4df501542acee9b5109ec7d5ffc22 /include | |
| parent | virtio: Keep vring_del_virtqueue() mirror of VQ create (diff) | |
| download | linux-dev-0e566c8f0f2e8325e35f6f97e13cde5356b41814.tar.xz linux-dev-0e566c8f0f2e8325e35f6f97e13cde5356b41814.zip | |
virtio: Protect vqs list access
VQs may be accessed to mark the device broken while they are
created/destroyed. Hence protect the access to the vqs list.
Fixes: e2dcdfe95c0b ("virtio: virtio_break_device() to mark all virtqueues broken.")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Link: https://lore.kernel.org/r/20210721142648.1525924-4-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/virtio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b1894e0323fa..41edbc01ffa4 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -110,6 +110,7 @@ struct virtio_device { bool config_enabled; bool config_change_pending; spinlock_t config_lock; + spinlock_t vqs_list_lock; /* Protects VQs list access */ struct device dev; struct virtio_device_id id; const struct virtio_config_ops *config; |