On Thu, May 30, 2024 at 5:17 PM Michael S. Tsirkin wrote:
>
> On Tue, May 28, 2024 at 09:41:16PM +0800, Heng Qi wrote:
> > When the following snippet is run, lockdep will report a deadlock[1].
> >
> > /* Acquire all queues dim_locks */
> > for (i = 0; i < vi->max_queue_pairs; i++)
> >
On Tue, 28 May 2024 21:41:16 +0800, Heng Qi wrote:
> When the following snippet is run, lockdep will report a deadlock[1].
>
> /* Acquire all queues dim_locks */
> for (i = 0; i < vi->max_queue_pairs; i++)
> mutex_lock(&vi->rq[i].dim_lock);
>
> There's no deadlock here because the vq
On Tue, May 28, 2024 at 09:41:16PM +0800, Heng Qi wrote:
> When the following snippet is run, lockdep will report a deadlock[1].
>
> /* Acquire all queues dim_locks */
> for (i = 0; i < vi->max_queue_pairs; i++)
> mutex_lock(&vi->rq[i].dim_lock);
>
> There's no deadlock here because
On Thu, 30 May 2024 10:34:07 +0200, Paolo Abeni wrote:
> On Tue, 2024-05-28 at 21:41 +0800, Heng Qi wrote:
> > When the following snippet is run, lockdep will report a deadlock[1].
> >
> > /* Acquire all queues dim_locks */
> > for (i = 0; i < vi->max_queue_pairs; i++)
> > mutex_loc
On Tue, 2024-05-28 at 21:41 +0800, Heng Qi wrote:
> When the following snippet is run, lockdep will report a deadlock[1].
>
> /* Acquire all queues dim_locks */
> for (i = 0; i < vi->max_queue_pairs; i++)
> mutex_lock(&vi->rq[i].dim_lock);
>
> There's no deadlock here because the vq
When the following snippet is run, lockdep will report a deadlock[1].
/* Acquire all queues dim_locks */
for (i = 0; i < vi->max_queue_pairs; i++)
mutex_lock(&vi->rq[i].dim_lock);
There's no deadlock here because the vq locks are always taken
in the same order, but lockdep can not f
