Convert bd_sem to bd_mutex

Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>

 block_dev.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

--- linux-2.6.16-rc6-mm1.orig/fs/block_dev.c.orig-mm1	2006-03-13 14:04:32.000000000 -0500
+++ linux-2.6.16-rc6-mm1/fs/block_dev.c	2006-03-13 12:29:35.000000000 -0500
@@ -674,11 +674,11 @@ int bd_claim_by_kobject(struct block_dev
 	if (!bo)
 		return -ENOMEM;
 
-	down(&bdev->bd_sem);
+	mutex_lock(&bdev->bd_mutex);
 	res = bd_claim(bdev, holder);
 	if (res || !add_bd_holder(bdev, bo))
 		free_bd_holder(bo);
-	up(&bdev->bd_sem);
+	mutex_unlock(&bdev->bd_mutex);
 
 	return res;
 }
@@ -692,11 +692,11 @@ void bd_release_from_kobject(struct bloc
 	if (!kobj)
 		return;
 
-	down(&bdev->bd_sem);
+	mutex_lock(&bdev->bd_mutex);
 	bd_release(bdev);
 	if ((bo = del_bd_holder(bdev, kobj)))
 		free_bd_holder(bo);
-	up(&bdev->bd_sem);
+	mutex_unlock(&bdev->bd_mutex);
 }
 
 EXPORT_SYMBOL(bd_release_from_kobject);