From a542ad1bafc7df9fc16de8a6894b350a4df75572 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Mon, 13 Jun 2011 19:52:59 +0200 Subject: btrfs: added helper functions to iterate backrefs These helper functions iterate back references and call a function for each backref. There is also a function to resolve an inode to a path in the file system. Signed-off-by: Jan Schmidt --- fs/btrfs/ioctl.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'fs/btrfs/ioctl.h') diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index ad1ea789fcb..1857e387184 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -193,6 +193,17 @@ struct btrfs_ioctl_space_args { struct btrfs_ioctl_space_info spaces[0]; }; +struct btrfs_data_container { + __u32 bytes_left; /* out -- bytes not needed to deliver output */ + __u32 bytes_missing; /* out -- additional bytes needed for result */ + __u32 elem_cnt; /* out */ + __u32 elem_missed; /* out */ + union { + char *str[0]; /* out */ + __u64 val[0]; /* out */ + }; +}; + #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ -- cgit v1.2.3-18-g5258