On 08/22/2016 06:23 AM, Shaun Tancheff wrote: > Use non DMA write log when ATA_DFLAG_PIO is set. > > Signed-off-by: Shaun Tancheff <shaun.tanch...@seagate.com> > --- > v6: Added check for ATA_DFLAG_PIO and fallback to non DMA write log for > SCT Write Same > > drivers/ata/libata-scsi.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c > index 37f456e..e50b7a7 100644 > --- a/drivers/ata/libata-scsi.c > +++ b/drivers/ata/libata-scsi.c > @@ -3485,6 +3485,8 @@ static unsigned int ata_scsi_write_same_xlat(struct > ata_queued_cmd *qc) > tf->device = ATA_CMD_STANDBYNOW1; > tf->protocol = ATA_PROT_DMA; > tf->command = ATA_CMD_WRITE_LOG_DMA_EXT; > + if (unlikely(dev->flags & ATA_DFLAG_PIO)) > + tf->command = ATA_CMD_WRITE_LOG_EXT; > } > > tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48 | > Reviewed-by: Hannes Reinecke <h...@suse.com>
Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking h...@suse.de +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
