This patch converts core parts of block layer to use blk_end_request
interfaces. Related 'uptodate' arguments are converted to 'error'.
'dequeue' argument was originally introduced for end_dequeued_request(),
where no attempt should be made to dequeue the request as it's already
dequeued.
However, it's not necessary as it can be checked with
list_empty(&rq->queuelist).
(Dequeued request has empty list and queued request doesn't.)
And it has been done in blk_end_request interfaces.
As a result of this patch, end_queued_request() and
end_dequeued_request() become identical. A future patch will merge
and rename them and change users of those functions.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
---
block/ll_rw_blk.c | 35 +++++++++++++++--------------------
1 files changed, 15 insertions(+), 20 deletions(-)
Index: 2.6.24-rc4/block/ll_rw_blk.c
===================================================================
--- 2.6.24-rc4.orig/block/ll_rw_blk.c
+++ 2.6.24-rc4/block/ll_rw_blk.c
@@ -347,7 +347,6 @@ unsigned blk_ordered_req_seq(struct requ
void blk_ordered_complete_seq(struct request_queue *q, unsigned seq, int error)
{
struct request *rq;
- int uptodate;
if (error && !q->orderr)
q->orderr = error;
@@ -361,15 +360,11 @@ void blk_ordered_complete_seq(struct req
/*
* Okay, sequence complete.
*/
- uptodate = 1;
- if (q->orderr)
- uptodate = q->orderr;
-
q->ordseq = 0;
rq = q->orig_bar_rq;
- end_that_request_first(rq, uptodate, rq->hard_nr_sectors);
- end_that_request_last(rq, uptodate);
+ if (__blk_end_request(rq, q->orderr, blk_rq_bytes(rq)))
+ BUG();
}
static void pre_flush_end_io(struct request *rq, int error)
@@ -486,9 +481,9 @@ int blk_do_ordered(struct request_queue
* ORDERED_NONE while this request is on it.
*/
blkdev_dequeue_request(rq);
- end_that_request_first(rq, -EOPNOTSUPP,
- ...
