1 files changed, 15 insertions, 4 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0562b0a4..8f0e8f2 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -862,9 +862,10 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
 		struct request_queue *q = sdev->request_queue;
 		void *buf;
 
-		/* set the min alignment */
+		/* set the min alignment and padding */
 		blk_queue_update_dma_alignment(sdev->request_queue,
 					       ATA_DMA_PAD_SZ - 1);
+		blk_queue_dma_pad(sdev->request_queue, ATA_DMA_PAD_SZ - 1);
 
 		/* configure draining */
 		buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL);
@@ -1694,12 +1695,17 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
 	u8 *rbuf;
 	unsigned int buflen, rc;
 	struct scsi_cmnd *cmd = args->cmd;
+	unsigned long flags;
+
+	local_irq_save(flags);
 
 	buflen = ata_scsi_rbuf_get(cmd, &rbuf);
 	memset(rbuf, 0, buflen);
 	rc = actor(args, rbuf, buflen);
 	ata_scsi_rbuf_put(cmd, rbuf);
 
+	local_irq_restore(flags);
+
 	if (rc == 0)
 		cmd->result = SAM_STAT_GOOD;
 	args->done(cmd);
@@ -2473,6 +2479,9 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
 		if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
 			u8 *buf = NULL;
 			unsigned int buflen;
+			unsigned long flags;
+
+			local_irq_save(flags);
 
 			buflen = ata_scsi_rbuf_get(cmd, &buf);
 
@@ -2490,6 +2499,8 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
 			}
 
 			ata_scsi_rbuf_put(cmd, buf);
+
+			local_irq_restore(flags);
 		}
 
 		cmd->result = SAM_STAT_GOOD;
@@ -2528,7 +2539,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
 	}
 
 	qc->tf.command = ATA_CMD_PACKET;
-	qc->nbytes = scsi_bufflen(scmd);
+	qc->nbytes = scsi_bufflen(scmd) + scmd->request->extra_len;
 
 	/* check whether ATAPI DMA is safe */
 	if (!using_pio && ata_check_atapi_dma(qc))
@@ -2539,7 +2550,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
 	 * want to set it properly, and for DMA where it is
 	 * effectively meaningless.
 	 */
-	nbytes = min(scmd->request->raw_data_len, (unsigned int)63 * 1024);
+	nbytes = min(scmd->request->data_len, (unsigned int)63 * 1024);
 
 	/* Most ATAPI devices which honor transfer chunk size don't
 	 * behave according to the spec when odd chunk size which
@@ -2865,7 +2876,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
 	 * TODO: find out if we need to do more here to
 	 *       cover scatter/gather case.
 	 */
-	qc->nbytes = scsi_bufflen(scmd);
+	qc->nbytes = scsi_bufflen(scmd) + scmd->request->extra_len;
 
 	/* request result TF and be quiet about device error */
 	qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET;