[PATCH] sem2mutex: blockdev #2

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 19 insertions, 19 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 6e50346..44d05e6 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -265,8 +265,8 @@ static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
 	    SLAB_CTOR_CONSTRUCTOR)
 	{
 		memset(bdev, 0, sizeof(*bdev));
-		sema_init(&bdev->bd_sem, 1);
-		sema_init(&bdev->bd_mount_sem, 1);
+		mutex_init(&bdev->bd_mutex);
+		mutex_init(&bdev->bd_mount_mutex);
 		INIT_LIST_HEAD(&bdev->bd_inodes);
 		INIT_LIST_HEAD(&bdev->bd_list);
 		inode_init_once(&ei->vfs_inode);
@@ -574,7 +574,7 @@ static int do_open(struct block_device *bdev, struct file *file)
 	}
 	owner = disk->fops->owner;
 
-	down(&bdev->bd_sem);
+	mutex_lock(&bdev->bd_mutex);
 	if (!bdev->bd_openers) {
 		bdev->bd_disk = disk;
 		bdev->bd_contains = bdev;
@@ -605,21 +605,21 @@ static int do_open(struct block_device *bdev, struct file *file)
 			if (ret)
 				goto out_first;
 			bdev->bd_contains = whole;
-			down(&whole->bd_sem);
+			mutex_lock(&whole->bd_mutex);
 			whole->bd_part_count++;
 			p = disk->part[part - 1];
 			bdev->bd_inode->i_data.backing_dev_info =
 			   whole->bd_inode->i_data.backing_dev_info;
 			if (!(disk->flags & GENHD_FL_UP) || !p || !p->nr_sects) {
 				whole->bd_part_count--;
-				up(&whole->bd_sem);
+				mutex_unlock(&whole->bd_mutex);
 				ret = -ENXIO;
 				goto out_first;
 			}
 			kobject_get(&p->kobj);
 			bdev->bd_part = p;
 			bd_set_size(bdev, (loff_t) p->nr_sects << 9);
-			up(&whole->bd_sem);
+			mutex_unlock(&whole->bd_mutex);
 		}
 	} else {
 		put_disk(disk);
@@ -633,13 +633,13 @@ static int do_open(struct block_device *bdev, struct file *file)
 			if (bdev->bd_invalidated)
 				rescan_partitions(bdev->bd_disk, bdev);
 		} else {
-			down(&bdev->bd_contains->bd_sem);
+			mutex_lock(&bdev->bd_contains->bd_mutex);
 			bdev->bd_contains->bd_part_count++;
-			up(&bdev->bd_contains->bd_sem);
+			mutex_unlock(&bdev->bd_contains->bd_mutex);
 		}
 	}
 	bdev->bd_openers++;
-	up(&bdev->bd_sem);
+	mutex_unlock(&bdev->bd_mutex);
 	unlock_kernel();
 	return 0;
 
@@ -652,7 +652,7 @@ out_first:
 	put_disk(disk);
 	module_put(owner);
 out:
-	up(&bdev->bd_sem);
+	mutex_unlock(&bdev->bd_mutex);
 	unlock_kernel();
 	if (ret)
 		bdput(bdev);
@@ -714,7 +714,7 @@ int blkdev_put(struct block_device *bdev)
 	struct inode *bd_inode = bdev->bd_inode;
 	struct gendisk *disk = bdev->bd_disk;
 
-	down(&bdev->bd_sem);
+	mutex_lock(&bdev->bd_mutex);
 	lock_kernel();
 	if (!--bdev->bd_openers) {
 		sync_blockdev(bdev);
@@ -724,9 +724,9 @@ int blkdev_put(struct block_device *bdev)
 		if (disk->fops->release)
 			ret = disk->fops->release(bd_inode, NULL);
 	} else {
-		down(&bdev->bd_contains->bd_sem);
+		mutex_lock(&bdev->bd_contains->bd_mutex);
 		bdev->bd_contains->bd_part_count--;
-		up(&bdev->bd_contains->bd_sem);
+		mutex_unlock(&bdev->bd_contains->bd_mutex);
 	}
 	if (!bdev->bd_openers) {
 		struct module *owner = disk->fops->owner;
@@ -746,7 +746,7 @@ int blkdev_put(struct block_device *bdev)
 		bdev->bd_contains = NULL;
 	}
 	unlock_kernel();
-	up(&bdev->bd_sem);
+	mutex_unlock(&bdev->bd_mutex);
 	bdput(bdev);
 	return ret;
 }
diff --git a/fs/buffer.c b/fs/buffer.c
index 1d3683d..0d6ca7b 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -201,7 +201,7 @@ int fsync_bdev(struct block_device *bdev)
  * freeze_bdev  --  lock a filesystem and force it into a consistent state
  * @bdev:	blockdevice to lock
  *
- * This takes the block device bd_mount_sem to make sure no new mounts
+ * This takes the block device bd_mount_mutex to make sure no new mounts
  * happen on bdev until thaw_bdev() is called.
  * If a superblock is found on this device, we take the s_umount semaphore
  * on it to make sure nobody unmounts until the snapshot creation is done.
@@ -210,7 +210,7 @@ struct super_block *freeze_bdev(struct block_device *bdev)
 {
 	struct super_block *sb;
 
-	down(&bdev->bd_mount_sem);
+	mutex_lock(&bdev->bd_mount_mutex);
 	sb = get_super(bdev);
 	if (sb && !(sb->s_flags & MS_RDONLY)) {
 		sb->s_frozen = SB_FREEZE_WRITE;
@@ -264,7 +264,7 @@ void thaw_bdev(struct block_device *bdev, struct super_block *sb)
 		drop_super(sb);
 	}
 
-	up(&bdev->bd_mount_sem);
+	mutex_unlock(&bdev->bd_mount_mutex);
 }
 EXPORT_SYMBOL(thaw_bdev);
 
diff --git a/fs/super.c b/fs/super.c
index e20b558..8f9c9b3 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -693,9 +693,9 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type,
 	 * will protect the lockfs code from trying to start a snapshot
 	 * while we are mounting
 	 */
-	down(&bdev->bd_mount_sem);
+	mutex_lock(&bdev->bd_mount_mutex);
 	s = sget(fs_type, test_bdev_super, set_bdev_super, bdev);
-	up(&bdev->bd_mount_sem);
+	mutex_unlock(&bdev->bd_mount_mutex);
 	if (IS_ERR(s))
 		goto out;