On Thu, Oct 29, 2009 at 11:30:09PM -0400, Martin K. Petersen wrote:
> +sd_show_thin_provisioning(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct scsi_disk *sdkp = to_scsi_disk(dev);
> +
> + return snprintf(buf, 20, "%u\n", sdkp->thin_provisioning);
> +}
If we want to expose this we'd better do it at the block layer so that
it also coverts non-scsi dicard support. Besides the mtd one already in
tree I also plan to add a discard command to virtio-blk.
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