On Wed, Mar 02, 2022 at 12:11:30PM +0100, Mark Kettenis wrote:
> > Date: Wed, 2 Mar 2022 10:53:54 +
> > From: Visa Hankala
> >
> > Holding NET_LOCK() while invoking a taskq barrier can result in
> > a deadlock because the lock can prevent the taskq from making progress.
> > Avoid this
> Date: Wed, 2 Mar 2022 10:53:54 +
> From: Visa Hankala
>
> Holding NET_LOCK() while invoking a taskq barrier can result in
> a deadlock because the lock can prevent the taskq from making progress.
> Avoid this problem in cad_down() by serializing the driver's ioctl
> handler with an rwlock
