SATA: enable non-queueable flush flag

commit 900e599eb0c16390ff671652a44e0ea90532220e upstream.

Enable non-queueable flush flag for SATA.

Stable: 2.6.39 only

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index e2f57e9..dad2c95 100644 (file)
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1089,21 +1089,21 @@ static int atapi_drain_needed(struct request *rq)
 static int ata_scsi_dev_config(struct scsi_device *sdev,
                               struct ata_device *dev)
 {
+       struct request_queue *q = sdev->request_queue;
+
        if (!ata_id_has_unload(dev->id))
                dev->flags |= ATA_DFLAG_NO_UNLOAD;
 
        /* configure max sectors */
-       blk_queue_max_hw_sectors(sdev->request_queue, dev->max_sectors);
+       blk_queue_max_hw_sectors(q, dev->max_sectors);
 
        if (dev->class == ATA_DEV_ATAPI) {
-               struct request_queue *q = sdev->request_queue;
                void *buf;
 
                sdev->sector_size = ATA_SECT_SIZE;
 
                /* set DMA padding */
-               blk_queue_update_dma_pad(sdev->request_queue,
-                                        ATA_DMA_PAD_SZ - 1);
+               blk_queue_update_dma_pad(q, ATA_DMA_PAD_SZ - 1);
 
                /* configure draining */
                buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL);
@@ -1131,8 +1131,7 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
                        "sector_size=%u > PAGE_SIZE, PIO may malfunction\n",
                        sdev->sector_size);
 
-       blk_queue_update_dma_alignment(sdev->request_queue,
-                                      sdev->sector_size - 1);
+       blk_queue_update_dma_alignment(q, sdev->sector_size - 1);
 
        if (dev->flags & ATA_DFLAG_AN)
                set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events);
@@ -1145,6 +1144,8 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
                scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth);
        }
 
+       blk_queue_flush_queueable(q, false);
+
        dev->sdev = sdev;
        return 0;
 }