diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/ioctl.c | 5 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 3 |
3 files changed, 6 insertions, 3 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index c3e634924149..b69ad1305b71 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -4130,6 +4130,7 @@ void btrfs_test_inode_set_ops(struct inode *inode); /* ioctl.c */ long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +int btrfs_ioctl_get_supported_features(void __user *arg); void btrfs_update_iflags(struct inode *inode); void btrfs_inherit_iflags(struct inode *inode, struct inode *dir); int btrfs_is_empty_uuid(u8 *uuid); diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index c1193b0c5e49..86249cf78897 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -5257,8 +5257,7 @@ out_unlock: .compat_ro_flags = BTRFS_FEATURE_COMPAT_RO_##suffix, \ .incompat_flags = BTRFS_FEATURE_INCOMPAT_##suffix } -static int btrfs_ioctl_get_supported_features(struct file *file, - void __user *arg) +int btrfs_ioctl_get_supported_features(void __user *arg) { static const struct btrfs_ioctl_feature_flags features[3] = { INIT_FEATURE_FLAGS(SUPP), @@ -5537,7 +5536,7 @@ long btrfs_ioctl(struct file *file, unsigned int case BTRFS_IOC_SET_FSLABEL: return btrfs_ioctl_set_fslabel(file, argp); case BTRFS_IOC_GET_SUPPORTED_FEATURES: - return btrfs_ioctl_get_supported_features(file, argp); + return btrfs_ioctl_get_supported_features(argp); case BTRFS_IOC_GET_FEATURES: return btrfs_ioctl_get_features(file, argp); case BTRFS_IOC_SET_FEATURES: diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index bf75200c6f86..a958f625793b 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2190,6 +2190,9 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd, break; ret = !(fs_devices->num_devices == fs_devices->total_devices); break; + case BTRFS_IOC_GET_SUPPORTED_FEATURES: + ret = btrfs_ioctl_get_supported_features((void __user*)arg); + break; } kfree(vol); |