tree a1d711c93218beb0f3f3681d33b15959bec1699a
parent 8e0a9320e94930fd6e5c2906c478203b80392f5c
author Fam Zheng <famz@redhat.com> 1412048423 +0800
committer Paolo Bonzini <pbonzini@redhat.com> 1412076651 +0200

virtio-scsi: Handle TMF request cancellation asynchronously

For VIRTIO_SCSI_T_TMF_ABORT_TASK and VIRTIO_SCSI_T_TMF_ABORT_TASK_SET,
use scsi_req_cancel_async to start the cancellation.

Because each tmf command may cancel multiple requests, we need to use a
counter to track the number of remaining requests we still need to wait
for.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>