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path: root/drivers/mtd/mtd_blkdevs.c
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Diffstat (limited to 'drivers/mtd/mtd_blkdevs.c')
-rw-r--r--drivers/mtd/mtd_blkdevs.c44
1 files changed, 24 insertions, 20 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index f8d2185819e..339cb1218ea 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -1,5 +1,5 @@
/*
- * $Id: mtd_blkdevs.c,v 1.24 2004/11/16 18:28:59 dwmw2 Exp $
+ * $Id: mtd_blkdevs.c,v 1.27 2005/11/07 11:14:20 gleixner Exp $
*
* (C) 2003 David Woodhouse <dwmw2@infradead.org>
*
@@ -21,7 +21,6 @@
#include <linux/init.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
-#include <linux/devfs_fs_kernel.h>
static LIST_HEAD(blktrans_majors);
@@ -86,7 +85,7 @@ static int mtd_blktrans_thread(void *arg)
daemonize("%sd", tr->name);
/* daemonize() doesn't do this for us since some kernel threads
- actually want to deal with signals. We can't just call
+ actually want to deal with signals. We can't just call
exit_sighand() since that'll cause an oops when we finally
do exit. */
spin_lock_irq(&current->sighand->siglock);
@@ -95,7 +94,7 @@ static int mtd_blktrans_thread(void *arg)
spin_unlock_irq(&current->sighand->siglock);
spin_lock_irq(rq->queue_lock);
-
+
while (!tr->blkcore_priv->exiting) {
struct request *req;
struct mtd_blktrans_dev *dev;
@@ -158,7 +157,7 @@ static int blktrans_open(struct inode *i, struct file *f)
if (!try_module_get(tr->owner))
goto out_tr;
- /* FIXME: Locking. A hot pluggable device can go away
+ /* FIXME: Locking. A hot pluggable device can go away
(del_mtd_device can be called for it) without its module
being unloaded. */
dev->mtd->usecount++;
@@ -196,7 +195,7 @@ static int blktrans_release(struct inode *i, struct file *f)
}
-static int blktrans_ioctl(struct inode *inode, struct file *file,
+static int blktrans_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct mtd_blktrans_dev *dev = inode->i_bdev->bd_disk->private_data;
@@ -265,7 +264,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
/* Required number was free */
list_add_tail(&new->list, &d->list);
goto added;
- }
+ }
last_devnum = d->devnum;
}
if (new->devnum == -1)
@@ -289,11 +288,19 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
gd->major = tr->major;
gd->first_minor = (new->devnum) << tr->part_bits;
gd->fops = &mtd_blktrans_ops;
-
- snprintf(gd->disk_name, sizeof(gd->disk_name),
- "%s%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
- snprintf(gd->devfs_name, sizeof(gd->devfs_name),
- "%s/%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
+
+ if (tr->part_bits)
+ if (new->devnum < 26)
+ snprintf(gd->disk_name, sizeof(gd->disk_name),
+ "%s%c", tr->name, 'a' + new->devnum);
+ else
+ snprintf(gd->disk_name, sizeof(gd->disk_name),
+ "%s%c%c", tr->name,
+ 'a' - 1 + new->devnum / 26,
+ 'a' + new->devnum % 26);
+ else
+ snprintf(gd->disk_name, sizeof(gd->disk_name),
+ "%s%d", tr->name, new->devnum);
/* 2.5 has capacity in units of 512 bytes while still
having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
@@ -307,7 +314,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
set_disk_ro(gd, 1);
add_disk(gd);
-
+
return 0;
}
@@ -322,7 +329,7 @@ int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old)
del_gendisk(old->blkcore_priv);
put_disk(old->blkcore_priv);
-
+
return 0;
}
@@ -361,12 +368,12 @@ static struct mtd_notifier blktrans_notifier = {
.add = blktrans_notify_add,
.remove = blktrans_notify_remove,
};
-
+
int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
{
int ret, i;
- /* Register the notifier if/when the first device type is
+ /* Register the notifier if/when the first device type is
registered, to prevent the link/init ordering from fucking
us over. */
if (!blktrans_notifier.list.next)
@@ -409,9 +416,7 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
kfree(tr->blkcore_priv);
up(&mtd_table_mutex);
return ret;
- }
-
- devfs_mk_dir(tr->name);
+ }
INIT_LIST_HEAD(&tr->devs);
list_add(&tr->list, &blktrans_majors);
@@ -445,7 +450,6 @@ int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr)
tr->remove_dev(dev);
}
- devfs_remove(tr->name);
blk_cleanup_queue(tr->blkcore_priv->rq);
unregister_blkdev(tr->major, tr->name);