On Wed, 16 Jul 2008, Elias Oltmanns wrote:
> Oh, I see. The name fooled me there, I suppose. So, the meaning of
> req->data_len is inverted, as it were, when the LLDD performs the data
> transfer, right?
The inversion takes place in the midlayer, not in the LLDD. Take a
look inside scsi_io_completion():
if (blk_pc_request(req)) { /* SG_IO ioctl from block level */
...
req->data_len = scsi_get_resid(cmd);
}
> Thanks for explaining,
Alan Stern
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
