aboutsummaryrefslogtreecommitdiff
path: root/drivers/block/ll_rw_blk.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block/ll_rw_blk.c')
-rw-r--r--drivers/block/ll_rw_blk.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 11ef9d9ea139..81fe3a0c1fe7 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
@@ -3582,7 +3574,7 @@ queue_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
q = container_of(kobj, struct request_queue, kobj);
if (!entry->show)
- return 0;
+ return -EIO;
return entry->show(q, page);
}
@@ -3596,7 +3588,7 @@ queue_attr_store(struct kobject *kobj, struct attribute *attr,
q = container_of(kobj, struct request_queue, kobj);
if (!entry->store)
- return -EINVAL;
+ return -EIO;
return entry->store(q, page, length);
}