From 4c4e21486154c8db93c7e82a4b3ab5f621cd1d97 Mon Sep 17 00:00:00 2001 From: Kiyoshi Ueda Date: Mon, 28 Jan 2008 10:29:42 +0100 Subject: [PATCH] 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 Cc: Heiko Carstens Cc: linux390@de.ibm.com Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Jens Axboe --- drivers/s390/block/dasd.c | 17 +++++++++-------- drivers/s390/char/tape_block.c | 13 ++++++------- 2 files changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 1db15f3e5d..d640427c74 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 eeb92e2ed0..ddc4a114e7 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); -- 2.39.5