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vhost_scsi: Handle vhost_vq_work_queue failures for TMFs

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vhost_vq_work_queue will never fail when queueing the TMF's response
handling because a guest can only send us TMFs when the device is fully
setup so there is always a worker at that time. In the next patches we
will modify the worker code so it handles SIGKILL by exiting before
outstanding commands/TMFs have sent their responses. In that case
vhost_vq_work_queue can fail when we try to send a response.

This has us just free the TMF's resources since at this time the guest
won't be able to get a response even if we could send it.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20240316004707.45557-6-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Mike Christie 2024-03-15 19:47:03 -05:00 committed by Michael S. Tsirkin
parent d9e59eec4a
commit 0352c961cb
1 changed files with 2 additions and 1 deletions
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3
drivers/vhost/scsi.c
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@ -1309,7 +1309,8 @@ static void vhost_scsi_tmf_flush_work(struct work_struct *work)
* send our response.
*/
vhost_dev_flush(vq->dev);
vhost_vq_work_queue(vq, &tmf->vwork);
if (!vhost_vq_work_queue(vq, &tmf->vwork))
vhost_scsi_release_tmf_res(tmf);
}
static void