blk_end_request: changing s390 (take 4)
This patch converts s390 to use blk_end_request interfaces.
Related 'uptodate' arguments are converted to 'error'.
As a result, the interfaces of internal functions below are changed:
o dasd_end_request
o tapeblock_end_request
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 1db15f3..d640427 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1595,12 +1595,10 @@
/*
* posts the buffer_cache about a finalized request
*/
-static inline void dasd_end_request(struct request *req, int uptodate)
+static inline void dasd_end_request(struct request *req, int error)
{
- if (end_that_request_first(req, uptodate, req->hard_nr_sectors))
+ if (__blk_end_request(req, error, blk_rq_bytes(req)))
BUG();
- add_disk_randomness(req->rq_disk);
- end_that_request_last(req, uptodate);
}
/*
@@ -1657,7 +1655,7 @@
"Rejecting write request %p",
req);
blkdev_dequeue_request(req);
- dasd_end_request(req, 0);
+ dasd_end_request(req, -EIO);
continue;
}
cqr = basedev->discipline->build_cp(basedev, block, req);
@@ -1686,7 +1684,7 @@
"on request %p",
PTR_ERR(cqr), req);
blkdev_dequeue_request(req);
- dasd_end_request(req, 0);
+ dasd_end_request(req, -EIO);
continue;
}
/*
@@ -1705,11 +1703,14 @@
{
struct request *req;
int status;
+ int error = 0;
req = (struct request *) cqr->callback_data;
dasd_profile_end(cqr->block, cqr, req);
status = cqr->memdev->discipline->free_cp(cqr, req);
- dasd_end_request(req, status);
+ if (status <= 0)
+ error = status ? status : -EIO;
+ dasd_end_request(req, error);
}
/*
@@ -2009,7 +2010,7 @@
spin_lock_irq(&block->request_queue_lock);
while ((req = elv_next_request(block->request_queue))) {
blkdev_dequeue_request(req);
- dasd_end_request(req, 0);
+ dasd_end_request(req, -EIO);
}
spin_unlock_irq(&block->request_queue_lock);
}