On 1/6/21 7:43 AM, Matan Azrad wrote:
> When the vDPA device is closed, the driver polling thread is canceled.
> The polling thread locks the configuration mutex while it polls the CQs.
>
> When the cancellation happens, it may terminate the thread inside the
> critical section what remains the configuration mutex locked.
>
> After device close, the driver may be configured again, in this case,
> for example, when the first queue state is updated, the driver tries to
> lock the mutex again and deadlock appears.
>
> Initialize the mutex after the polling thread cancellation.
>
> Fixes: 99abbd62c272 ("vdpa/mlx5: fix queue update synchronization")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Matan Azrad <ma...@nvidia.com>
> Acked-by: Xueming Li <xuemi...@nvidia.com>
> ---
> drivers/vdpa/mlx5/mlx5_vdpa.c | 2 ++
> 1 file changed, 2 insertions(+)
>
Applied to dpdk-next-virtio/main.
Thanks,
Maxime
