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Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c46
1 files changed, 0 insertions, 46 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 53551f1..7a38b10 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -932,9 +932,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
int sense_valid = 0;
int sense_deferred = 0;
- if (blk_complete_barrier_rq(q, req, good_bytes >> 9))
- return;
-
/*
* Free up any indirection buffers we allocated for DMA purposes.
* For the case of a READ, we need to copy the data out of the
@@ -1199,38 +1196,6 @@ static int scsi_init_io(struct scsi_cmnd *cmd)
return BLKPREP_KILL;
}
-static int scsi_prepare_flush_fn(request_queue_t *q, struct request *rq)
-{
- struct scsi_device *sdev = q->queuedata;
- struct scsi_driver *drv;
-
- if (sdev->sdev_state == SDEV_RUNNING) {
- drv = *(struct scsi_driver **) rq->rq_disk->private_data;
-
- if (drv->prepare_flush)
- return drv->prepare_flush(q, rq);
- }
-
- return 0;
-}
-
-static void scsi_end_flush_fn(request_queue_t *q, struct request *rq)
-{
- struct scsi_device *sdev = q->queuedata;
- struct request *flush_rq = rq->end_io_data;
- struct scsi_driver *drv;
-
- if (flush_rq->errors) {
- printk("scsi: barrier error, disabling flush support\n");
- blk_queue_ordered(q, QUEUE_ORDERED_NONE);
- }
-
- if (sdev->sdev_state == SDEV_RUNNING) {
- drv = *(struct scsi_driver **) rq->rq_disk->private_data;
- drv->end_flush(q, rq);
- }
-}
-
static int scsi_issue_flush_fn(request_queue_t *q, struct gendisk *disk,
sector_t *error_sector)
{
@@ -1703,17 +1668,6 @@ struct request_queue *scsi_alloc_queue(struct scsi_device *sdev)
blk_queue_segment_boundary(q, shost->dma_boundary);
blk_queue_issue_flush_fn(q, scsi_issue_flush_fn);
- /*
- * ordered tags are superior to flush ordering
- */
- if (shost->ordered_tag)
- blk_queue_ordered(q, QUEUE_ORDERED_TAG);
- else if (shost->ordered_flush) {
- blk_queue_ordered(q, QUEUE_ORDERED_FLUSH);
- q->prepare_flush_fn = scsi_prepare_flush_fn;
- q->end_flush_fn = scsi_end_flush_fn;
- }
-
if (!shost->use_clustering)
clear_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags);
return q;
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