X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fmtd%2Fmtd_blkdevs.c;h=b879a66daa9e037964ff858f362e8b7cb062b207;hb=cf352ce0b9104dc6a1c11df52db9f910f1f6cd2e;hp=178b53b56be91380cbbf3e1f2d46c01bd60470c1;hpb=e30fdb1e026c2d05f216d2e5a25bfafdfd261ec2;p=powerpc.git

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 178b53b56b..b879a66daa 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -42,19 +42,20 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr,
 	unsigned long block, nsect;
 	char *buf;
 
-	block = req->sector;
-	nsect = req->current_nr_sectors;
+	block = req->sector << 9 >> tr->blkshift;
+	nsect = req->current_nr_sectors << 9 >> tr->blkshift;
+
 	buf = req->buffer;
 
 	if (!blk_fs_request(req))
 		return 0;
 
-	if (block + nsect > get_capacity(req->rq_disk))
+	if (req->sector + req->current_nr_sectors > get_capacity(req->rq_disk))
 		return 0;
 
 	switch(rq_data_dir(req)) {
 	case READ:
-		for (; nsect > 0; nsect--, block++, buf += 512)
+		for (; nsect > 0; nsect--, block++, buf += tr->blksize)
 			if (tr->readsect(dev, block, buf))
 				return 0;
 		return 1;
@@ -63,7 +64,7 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr,
 		if (!tr->writesect)
 			return 0;
 
-		for (; nsect > 0; nsect--, block++, buf += 512)
+		for (; nsect > 0; nsect--, block++, buf += tr->blksize)
 			if (tr->writesect(dev, block, buf))
 				return 0;
 		return 1;
@@ -297,7 +298,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
 
 	/* 2.5 has capacity in units of 512 bytes while still
 	   having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
-	set_capacity(gd, (new->size * new->blksize) >> 9);
+	set_capacity(gd, (new->size * tr->blksize) >> 9);
 
 	gd->private_data = new;
 	new->blkcore_priv = gd;
@@ -372,12 +373,10 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
 	if (!blktrans_notifier.list.next)
 		register_mtd_user(&blktrans_notifier);
 
-	tr->blkcore_priv = kmalloc(sizeof(*tr->blkcore_priv), GFP_KERNEL);
+	tr->blkcore_priv = kzalloc(sizeof(*tr->blkcore_priv), GFP_KERNEL);
 	if (!tr->blkcore_priv)
 		return -ENOMEM;
 
-	memset(tr->blkcore_priv, 0, sizeof(*tr->blkcore_priv));
-
 	mutex_lock(&mtd_table_mutex);
 
 	ret = register_blkdev(tr->major, tr->name);
@@ -401,6 +400,8 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
 	}
 
 	tr->blkcore_priv->rq->queuedata = tr;
+	blk_queue_hardsect_size(tr->blkcore_priv->rq, tr->blksize);
+	tr->blkshift = ffs(tr->blksize) - 1;
 
 	ret = kernel_thread(mtd_blktrans_thread, tr, CLONE_KERNEL);
 	if (ret < 0) {