6 files changed, 23 insertions, 36 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index d1815272c435..27a1be0cd4d4 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -603,7 +603,7 @@ static void dasd_profile_end(struct dasd_block *block,
         if (dasd_profile_level != DASD_PROFILE_ON)
                 return;
 
-        sectors = req->nr_sectors;
+        sectors = blk_rq_sectors(req);
         if (!cqr->buildclk || !cqr->startclk ||
             !cqr->stopclk || !cqr->endclk ||
             !sectors)
@@ -1614,15 +1614,6 @@ 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 error)
-{
-        if (__blk_end_request(req, error, blk_rq_bytes(req)))
-                BUG();
-}
-
-/*
  * Process finished error recovery ccw.
  */
 static inline void __dasd_block_process_erp(struct dasd_block *block,
@@ -1665,18 +1656,14 @@ static void __dasd_process_request_queue(struct dasd_block *block)
         if (basedev->state < DASD_STATE_READY)
                 return;
         /* Now we try to fetch requests from the request queue */
-        while (!blk_queue_plugged(queue) &&
-               elv_next_request(queue)) {
-
-                req = elv_next_request(queue);
-
+        while (!blk_queue_plugged(queue) && (req = blk_peek_request(queue))) {
                 if (basedev->features & DASD_FEATURE_READONLY &&
                     rq_data_dir(req) == WRITE) {
                         DBF_DEV_EVENT(DBF_ERR, basedev,
                                       "Rejecting write request %p",
                                       req);
-                        blkdev_dequeue_request(req);
-                        dasd_end_request(req, -EIO);
+                        blk_start_request(req);
+                        __blk_end_request_all(req, -EIO);
                         continue;
                 }
                 cqr = basedev->discipline->build_cp(basedev, block, req);
@@ -1704,8 +1691,8 @@ static void __dasd_process_request_queue(struct dasd_block *block)
                                       "CCW creation failed (rc=%ld) "
                                       "on request %p",
                                       PTR_ERR(cqr), req);
-                        blkdev_dequeue_request(req);
-                        dasd_end_request(req, -EIO);
+                        blk_start_request(req);
+                        __blk_end_request_all(req, -EIO);
                         continue;
                 }
                 /*
@@ -1714,7 +1701,7 @@ static void __dasd_process_request_queue(struct dasd_block *block)
                  */
                 cqr->callback_data = (void *) req;
                 cqr->status = DASD_CQR_FILLED;
-                blkdev_dequeue_request(req);
+                blk_start_request(req);
                 list_add_tail(&cqr->blocklist, &block->ccw_queue);
                 dasd_profile_start(block, cqr, req);
         }
@@ -1731,7 +1718,7 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr)
         status = cqr->block->base->discipline->free_cp(cqr, req);
         if (status <= 0)
                 error = status ? status : -EIO;
-        dasd_end_request(req, error);
+        __blk_end_request_all(req, error);
 }
 
 /*
@@ -2003,7 +1990,7 @@ static void dasd_setup_queue(struct dasd_block *block)
 {
         int max;
 
-        blk_queue_hardsect_size(block->request_queue, block->bp_block);
+        blk_queue_logical_block_size(block->request_queue, block->bp_block);
         max = block->base->discipline->max_blocks << block->s2b_shift;
         blk_queue_max_sectors(block->request_queue, max);
         blk_queue_max_phys_segments(block->request_queue, -1L);
@@ -2038,10 +2025,8 @@ static void dasd_flush_request_queue(struct dasd_block *block)
                 return;
 
         spin_lock_irq(&block->request_queue_lock);
-        while ((req = elv_next_request(block->request_queue))) {
-                blkdev_dequeue_request(req);
-                dasd_end_request(req, -EIO);
-        }
+        while ((req = blk_fetch_request(block->request_queue)))
+                __blk_end_request_all(req, -EIO);
         spin_unlock_irq(&block->request_queue_lock);
 }
 
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index b9a7f7733446..2efaddfae560 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -505,8 +505,9 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
                 return ERR_PTR(-EINVAL);
         blksize = block->bp_block;
         /* Calculate record id of first and last block. */
-        first_rec = req->sector >> block->s2b_shift;
-        last_rec = (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
+        first_rec = blk_rq_pos(req) >> block->s2b_shift;
+        last_rec =
+                (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
         /* Check struct bio and count the number of blocks for the request. */
         count = 0;
         rq_for_each_segment(bv, req, iter) {
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index cb52da033f06..a41c94053e64 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -2354,10 +2354,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
         blksize = block->bp_block;
         blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
         /* Calculate record id of first and last block. */
-        first_rec = first_trk = req->sector >> block->s2b_shift;
+        first_rec = first_trk = blk_rq_pos(req) >> block->s2b_shift;
         first_offs = sector_div(first_trk, blk_per_trk);
         last_rec = last_trk =
-                (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
+                (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
         last_offs = sector_div(last_trk, blk_per_trk);
         cdlspecial = (private->uses_cdl && first_rec < 2*blk_per_trk);
 
@@ -2420,7 +2420,7 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req)
         private = (struct dasd_eckd_private *) cqr->block->base->private;
         blksize = cqr->block->bp_block;
         blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
-        recid = req->sector >> cqr->block->s2b_shift;
+        recid = blk_rq_pos(req) >> cqr->block->s2b_shift;
         ccw = cqr->cpaddr;
         /* Skip over define extent & locate record. */
         ccw++;
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index a3eb6fd14673..8912358daa2f 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -270,8 +270,9 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
                 return ERR_PTR(-EINVAL);
         blksize = block->bp_block;
         /* Calculate record id of first and last block. */
-        first_rec = req->sector >> block->s2b_shift;
-        last_rec = (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
+        first_rec = blk_rq_pos(req) >> block->s2b_shift;
+        last_rec =
+                (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
         /* Check struct bio and count the number of blocks for the request. */
         count = 0;
         cidaw = 0;
@@ -309,7 +310,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
         ccw = cqr->cpaddr;
         /* First ccw is define extent. */
         define_extent(ccw++, cqr->data, rq_data_dir(req),
-                      block->bp_block, req->sector, req->nr_sectors);
+                      block->bp_block, blk_rq_pos(req), blk_rq_sectors(req));
         /* Build locate_record + read/write ccws. */
         idaws = (unsigned long *) (cqr->data + sizeof(struct DE_fba_data));
         LO_data = (struct LO_fba_data *) (idaws + cidaw);
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index cfdcf1aed33c..a4c7ffcd9987 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -602,7 +602,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
         dev_info->gd->private_data = dev_info;
         dev_info->gd->driverfs_dev = &dev_info->dev;
         blk_queue_make_request(dev_info->dcssblk_queue, dcssblk_make_request);
-        blk_queue_hardsect_size(dev_info->dcssblk_queue, 4096);
+        blk_queue_logical_block_size(dev_info->dcssblk_queue, 4096);
 
         seg_byte_size = (dev_info->end - dev_info->start + 1);
         set_capacity(dev_info->gd, seg_byte_size >> 9); // size in sectors
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 76814f3e898a..0ae0c83ef879 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -343,7 +343,7 @@ static int __init xpram_setup_blkdev(void)
                         goto out;
                 }
                 blk_queue_make_request(xpram_queues[i], xpram_make_request);
-                blk_queue_hardsect_size(xpram_queues[i], 4096);
+                blk_queue_logical_block_size(xpram_queues[i], 4096);
         }
 
         /*