diff options
Diffstat (limited to 'arch/s390/hypfs/hypfs_dbfs.c')
| -rw-r--r-- | arch/s390/hypfs/hypfs_dbfs.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/hypfs/hypfs_dbfs.c b/arch/s390/hypfs/hypfs_dbfs.c index 17ab8b7b53cc..2badf2bf9cd7 100644 --- a/arch/s390/hypfs/hypfs_dbfs.c +++ b/arch/s390/hypfs/hypfs_dbfs.c @@ -81,9 +81,25 @@ static ssize_t dbfs_read(struct file *file, char __user *buf, return rc; } +static long dbfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct hypfs_dbfs_file *df; + long rc; + + df = file->f_path.dentry->d_inode->i_private; + mutex_lock(&df->lock); + if (df->unlocked_ioctl) + rc = df->unlocked_ioctl(file, cmd, arg); + else + rc = -ENOTTY; + mutex_unlock(&df->lock); + return rc; +} + static const struct file_operations dbfs_ops = { .read = dbfs_read, .llseek = no_llseek, + .unlocked_ioctl = dbfs_ioctl, }; int hypfs_dbfs_create_file(struct hypfs_dbfs_file *df) |