Re: [PATCH v5 2/3] scsi: sd: send REQUEST SENSE for BLIST_MEDIA_CHANGE devices in runtime_resume()

[Christoph Hellwig]

On Wed, Jun 30, 2021 at 10:44:52AM +0200, Martin Kepplinger wrote:
> +	struct scsi_disk *sdkp = dev_get_drvdata(dev);
> +	struct scsi_device *sdp = sdkp->device;
> +	int timeout, res;
> +
> +	timeout = sdp->request_queue->rq_timeout * SD_FLUSH_TIMEOUT_MULTIPLIER;

Is REQUEST SENSE reqlly a so slow operation on these devices that
we need to override the timeout?