[SCSI] remove requeue feature from blk_insert_request()

blk_insert_request() has a unobivous feature of requeuing a
request setting REQ_SPECIAL|REQ_SOFTBARRIER.  SCSI midlayer
was the only user and as previous patches removed the usage,
remove the feature from blk_insert_request().  Only special
requests should be queued with blk_insert_request().  All
requeueing should go through blk_requeue_request().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 6 insertions, 14 deletions

diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 11ef9d9ea139..f20eba22b14b 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -2038,7 +2038,6 @@ EXPORT_SYMBOL(blk_requeue_request);
  * @rq:         request to be inserted
  * @at_head:    insert request at head or tail of queue
  * @data:       private data
- * @reinsert:   true if request it a reinsertion of previously processed one
  *
  * Description:
  *    Many block devices need to execute commands asynchronously, so they don't
@@ -2053,8 +2052,9 @@ EXPORT_SYMBOL(blk_requeue_request);
  *    host that is unable to accept a particular command.
  */
 void blk_insert_request(request_queue_t *q, struct request *rq,
-                        int at_head, void *data, int reinsert)
+                        int at_head, void *data)
 {
+        int where = at_head ? ELEVATOR_INSERT_FRONT : ELEVATOR_INSERT_BACK;
         unsigned long flags;
 
         /*
@@ -2071,20 +2071,12 @@ void blk_insert_request(request_queue_t *q, struct request *rq,
         /*
          * If command is tagged, release the tag
          */
-        if (reinsert)
-                blk_requeue_request(q, rq);
-        else {
-                int where = ELEVATOR_INSERT_BACK;
-
-                if (at_head)
-                        where = ELEVATOR_INSERT_FRONT;
+        if (blk_rq_tagged(rq))
+                blk_queue_end_tag(q, rq);
 
-                if (blk_rq_tagged(rq))
-                        blk_queue_end_tag(q, rq);
+        drive_stat_acct(rq, rq->nr_sectors, 1);
+        __elv_add_request(q, rq, where, 0);
 
-                drive_stat_acct(rq, rq->nr_sectors, 1);
-                __elv_add_request(q, rq, where, 0);
-        }
         if (blk_queue_plugged(q))
                 __generic_unplug_device(q);
         else