On Fri, Sep 13, 2013 at 07:57:58AM -0700, James Bottomley wrote: > This is an awful lot of contortions (which don't seem to have any other > users on the horizon) to support a device that's not standards > compliant. What about this, it's simple, it does the right thing and > it's contained in the driver of the problem device. > > James > > --- > > diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c > index 83ec1aa..bd86a4b 100644 > --- a/drivers/scsi/storvsc_drv.c > +++ b/drivers/scsi/storvsc_drv.c > @@ -1438,6 +1438,12 @@ static int storvsc_device_configure(struct scsi_device *sdevice) > > sdevice->no_write_same = 1; > > + /* > + * hyper-v is stupid and lies about its capabilities > + * If we pretend to be SPC-3, we send RC16 which activates trim > + */ > + sdevice->scsi_level = SCSI_SPC_3; > + > return 0; > } I will get that tested and see if there are any other negative side effects. -apw -- 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
