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authorKiyoshi Ueda <k-ueda@ct.jp.nec.com>2008-01-28 10:29:42 +0100
committerJens Axboe <jens.axboe@oracle.com>2008-01-28 10:36:54 +0100
commit4c4e21486154c8db93c7e82a4b3ab5f621cd1d97 (patch)
treecf3b6e8e8e098e7f8a7b95aa3980f96b5c9f01f1
parentfd539832c7d3a242269374dbcae2cd54da150930 (diff)
downloadop-kernel-dev-4c4e21486154c8db93c7e82a4b3ab5f621cd1d97.zip
op-kernel-dev-4c4e21486154c8db93c7e82a4b3ab5f621cd1d97.tar.gz
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>
-rw-r--r--drivers/s390/block/dasd.c17
-rw-r--r--drivers/s390/char/tape_block.c13
2 files changed, 15 insertions, 15 deletions
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 @@ void dasd_block_clear_timer(struct dasd_block *block)
/*
* 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 @@ static void __dasd_process_request_queue(struct dasd_block *block)
"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 @@ static void __dasd_process_request_queue(struct dasd_block *block)
"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 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr)
{
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 @@ static void dasd_flush_request_queue(struct dasd_block *block)
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);
}
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index eeb92e2..ddc4a11 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -74,11 +74,10 @@ tapeblock_trigger_requeue(struct tape_device *device)
* Post finished request.
*/
static void
-tapeblock_end_request(struct request *req, int uptodate)
+tapeblock_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();
- end_that_request_last(req, uptodate);
}
static void
@@ -91,7 +90,7 @@ __tapeblock_end_request(struct tape_request *ccw_req, void *data)
device = ccw_req->device;
req = (struct request *) data;
- tapeblock_end_request(req, ccw_req->rc == 0);
+ tapeblock_end_request(req, (ccw_req->rc == 0) ? 0 : -EIO);
if (ccw_req->rc == 0)
/* Update position. */
device->blk_data.block_position =
@@ -119,7 +118,7 @@ tapeblock_start_request(struct tape_device *device, struct request *req)
ccw_req = device->discipline->bread(device, req);
if (IS_ERR(ccw_req)) {
DBF_EVENT(1, "TBLOCK: bread failed\n");
- tapeblock_end_request(req, 0);
+ tapeblock_end_request(req, -EIO);
return PTR_ERR(ccw_req);
}
ccw_req->callback = __tapeblock_end_request;
@@ -132,7 +131,7 @@ tapeblock_start_request(struct tape_device *device, struct request *req)
* Start/enqueueing failed. No retries in
* this case.
*/
- tapeblock_end_request(req, 0);
+ tapeblock_end_request(req, -EIO);
device->discipline->free_bread(ccw_req);
}
@@ -177,7 +176,7 @@ tapeblock_requeue(struct work_struct *work) {
if (rq_data_dir(req) == WRITE) {
DBF_EVENT(1, "TBLOCK: Rejecting write request\n");
blkdev_dequeue_request(req);
- tapeblock_end_request(req, 0);
+ tapeblock_end_request(req, -EIO);
continue;
}
spin_unlock_irq(&device->blk_data.request_queue_lock);
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