fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / mtd / mtd_blkdevs.c

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 458d3c8..b879a66 100644 (file)
--- 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 (!(req->flags & REQ_CMD))
+       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;
@@ -63,13 +64,13 @@ 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;
 
        default:
-               printk(KERN_NOTICE "Unknown request %ld\n", rq_data_dir(req));
+               printk(KERN_NOTICE "Unknown request %u\n", rq_data_dir(req));
                return 0;
        }
 }
@@ -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) {