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authorChristoph Hellwig <hch@lst.de>2014-10-02 14:39:55 +0200
committerChristoph Hellwig <hch@lst.de>2014-11-12 11:19:39 +0100
commita62182f338b39a22035531c6afc0a8d2928b1df2 (patch)
tree57ca6cea82a09d2655daf5c161024c5015373646 /drivers/target/loopback
parent1d5203284d8acbdfdf9b478d434450b34f338f28 (diff)
scsi: provide a generic change_queue_type method
Most drivers use exactly the same implementation, so provide it as a library function. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers/target/loopback')
-rw-r--r--drivers/target/loopback/tcm_loop.c17
1 files changed, 1 insertions, 16 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index ab3ab27d49b7..3b9c76835b45 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -135,21 +135,6 @@ static int tcm_loop_change_queue_depth(
return sdev->queue_depth;
}
-static int tcm_loop_change_queue_type(struct scsi_device *sdev, int tag)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag);
-
- if (tag)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag = 0;
-
- return tag;
-}
-
/*
* Locate the SAM Task Attr from struct scsi_cmnd *
*/
@@ -451,7 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = {
.name = "TCM_Loopback",
.queuecommand = tcm_loop_queuecommand,
.change_queue_depth = tcm_loop_change_queue_depth,
- .change_queue_type = tcm_loop_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.eh_abort_handler = tcm_loop_abort_task,
.eh_device_reset_handler = tcm_loop_device_reset,
.eh_target_reset_handler = tcm_loop_target_reset,

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