Staging: get cowloop to build properly

There has been some block api changes since the last
release of the cowloop code.  This patch updates the code to
properly build.

Cc: "H.J. Thomassen" <hjt@ATComputing.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/cowloop/cowloop.c b/drivers/staging/cowloop/cowloop.c
index 23978012838a86e2c7d549ca0abc490d5e14553e..c43654bc83cf2dab9a61aa91367d24953615823d 100644 (file)
--- a/drivers/staging/cowloop/cowloop.c
+++ b/drivers/staging/cowloop/cowloop.c
@@ -967,12 +967,12 @@ cowlo_request(request_queue_t *q)
 
        DEBUGP(DCOW "cowloop - request function called....\n");
 
-       while((req = elv_next_request(q)) != NULL) {
+       while((req = blk_peek_request(q)) != NULL) {
                DEBUGP(DCOW "cowloop - got next request\n");
 
                if (! blk_fs_request(req)) {
                                 /* this is not a normal file system request */
-                       end_request(req, 0);
+                       __blk_end_request_cur(req, -EIO);
                        continue;
                }
                cowdev = req->rq_disk->private_data;
@@ -988,7 +988,7 @@ cowlo_request(request_queue_t *q)
                */
                if (!cowdev->pid) {
                        printk(KERN_ERR"cowloop - no thread available\n");
-                       end_request(req, 0);    /* request failed */
+                       __blk_end_request_cur(req, -EIO);       /* request failed */
                        cowdev->iobusy  = 0;
                        continue;
                }
@@ -1058,7 +1058,7 @@ cowlo_daemon(struct cowloop_device *cowdev)
                */
                spin_lock_irq(&cowdev->rqlock);
 
-               end_request(cowdev->req, rv);
+               __blk_end_request_cur(cowdev->req, rv);
                cowdev->iobusy = 0;
 
                /*
@@ -1090,8 +1090,8 @@ cowlo_do_request(struct request *req)
        /*
        ** calculate some variables which are needed later on
        */
-       len     =          req->current_nr_sectors << 9;
-       offset  = (loff_t) req->sector             << 9;
+       len     =          blk_rq_cur_sectors(req) << 9;
+       offset  = (loff_t) blk_rq_pos(req)         << 9;
 
        DEBUGP(DCOW"cowloop - req cmd=%d offset=%lld len=%lu addr=%p\n",
                                *(req->cmd), offset, len, req->buffer);
@@ -1918,7 +1918,7 @@ cowlo_openpair(char *rdof, char *cowf, int autorecover, int minor)
                return -EINVAL;
        }
 
-       blk_queue_hardsect_size(cowdev->rqueue, cowdev->blocksz);
+       blk_queue_logical_block_size(cowdev->rqueue, cowdev->blocksz);
        cowdev->gd->queue = cowdev->rqueue;
 
        /*
@@ -2132,7 +2132,7 @@ cowlo_openrdo(struct cowloop_device *cowdev, char *rdof)
 
 
                if (cowdev->belowq)
-                       cowdev->blocksz = cowdev->belowq->hardsect_size;
+                       cowdev->blocksz = queue_logical_block_size(cowdev->belowq);
 
                if (cowdev->blocksz == 0)
                        cowdev->blocksz = BLOCK_SIZE; /* default 2^10 */