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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2011-06-13 19:52:59 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2011-09-29 12:54:27 +0200 |
| commit | a542ad1bafc7df9fc16de8a6894b350a4df75572 (patch) | |
| tree | ece4cabbed85ceea326233735134863b2feec0e6 /fs/btrfs/ioctl.h | |
| parent | 0a7a0519d1789f3a222849421dbe91b6bddb88f5 (diff) | |
| download | linux-a542ad1bafc7df9fc16de8a6894b350a4df75572.tar.bz2 | |
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 <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs/ioctl.h')
| -rw-r--r-- | fs/btrfs/ioctl.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index ad1ea789fcb4..1857e3871843 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, \ |