Am 28/04/2022 um 15:55 schrieb Stefan Hajnoczi:
> On Tue, Apr 26, 2022 at 04:51:11AM -0400, Emanuele Giuseppe Esposito wrote:
>> The only problem here is ->attach and ->detach callbacks
>> could call bdrv_{un}apply_subtree_drain(), which itself
>> will use a rdlock to navigate through all nodes.
On Tue, Apr 26, 2022 at 04:51:11AM -0400, Emanuele Giuseppe Esposito wrote:
> The only problem here is ->attach and ->detach callbacks
> could call bdrv_{un}apply_subtree_drain(), which itself
> will use a rdlock to navigate through all nodes.
> To avoid deadlocks, take the lock only outside the dr
On 4/26/22 10:51, Emanuele Giuseppe Esposito wrote:
The only problem here is ->attach and ->detach callbacks
could call bdrv_{un}apply_subtree_drain(), which itself
will use a rdlock to navigate through all nodes.
To avoid deadlocks, take the lock only outside the drains,
and if we need to both a
