diff options
| -rw-r--r-- | fs/btrfs/super.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index db7d7b803a61..eb67ca44ad51 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1908,6 +1908,17 @@ static struct file_system_type btrfs_fs_type = { }; MODULE_ALIAS_FS("btrfs"); +static int btrfs_control_open(struct inode *inode, struct file *file) +{ + /* + * The control file's private_data is used to hold the + * transaction when it is started and is used to keep + * track of whether a transaction is already in progress. + */ + file->private_data = NULL; + return 0; +} + /* * used by btrfsctl to scan devices when no FS is mounted */ @@ -2009,6 +2020,7 @@ static const struct super_operations btrfs_super_ops = { }; static const struct file_operations btrfs_ctl_fops = { + .open = btrfs_control_open, .unlocked_ioctl = btrfs_control_ioctl, .compat_ioctl = btrfs_control_ioctl, .owner = THIS_MODULE, |