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| author | Tejun Heo <htejun@gmail.com> | 2005-04-24 02:06:05 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-05-20 12:53:28 -0500 |
| commit | 867d1191fca388a79e4bb500dd85a9e871c96b99 (patch) | |
| tree | 303533d15c553ff5dbd6053a98fb0561bdda2995 /drivers/block/ll_rw_blk.c | |
| parent | beb6617d994161a6b12c5f69afc6fb154f085447 (diff) | |
| download | lwn-867d1191fca388a79e4bb500dd85a9e871c96b99.tar.gz lwn-867d1191fca388a79e4bb500dd85a9e871c96b99.zip | |
[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>
Diffstat (limited to 'drivers/block/ll_rw_blk.c')
| -rw-r--r-- | drivers/block/ll_rw_blk.c | 20 |
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 |