Re: [PATCH 01/12] virtio-scsi: replace AioContext lock with tmf_bh_lock

[Kevin Wolf]

Am 29.11.2023 um 20:55 hat Stefan Hajnoczi geschrieben:
> Protect the Task Management Function BH state with a lock. The TMF BH
> runs in the main loop thread. An IOThread might process a TMF at the
> same time as the TMF BH is running. Therefore tmf_bh_list and tmf_bh
> must be protected by a lock.
> 
> Run TMF request completion in the IOThread using aio_wait_bh_oneshot().
> This avoids more locking to protect the virtqueue and SCSI layer state.
> 
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Reviewed-by: Kevin Wolf <kwolf@redhat.com>