diff options
| author | David Sterba <dsterba@suse.com> | 2016-02-17 15:24:14 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-02-23 12:56:21 +0100 |
| commit | c5868f8362f5620302c66848d400368f8d4b45f8 (patch) | |
| tree | 23238ca3d341afa5016af29323107f477c9f3c63 /fs/btrfs/ctree.h | |
| parent | Linux 4.5-rc3 (diff) | |
| download | linux-c5868f8362f5620302c66848d400368f8d4b45f8.tar.xz linux-c5868f8362f5620302c66848d400368f8d4b45f8.zip | |
btrfs: add GET_SUPPORTED_FEATURES to the control device ioctls
The control device is accessible when no filesystem is mounted and we
may want to query features supported by the module. This is already
possible using the sysfs files, this ioctl is for parity and
convenience.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index bfe4a337fb4d..47bc50fd4f55 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -4089,6 +4089,7 @@ 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(struct file *file, 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); |