diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-07-14 11:16:23 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-11-09 19:08:16 -0800 |
| commit | e936e495ae1b7cf83a33e9b530dfa903a30dfad6 (patch) | |
| tree | f28737b2e7b35c8ff74eee3df5588caa1a92d506 /fs/xfs/xfs_bmap_util.h | |
| parent | 59f8bca3c5e494751aaded276dc0366dc4b87a82 (diff) | |
xfs: fallocate free space into a filedefrag-freespace_2022-11-09
Add a new fallocate mode to map free physical space into a file, at the
same file offset as if the file were a sparse image of the physical
device backing the filesystem. The intent here is to use this to
prototype a free space defragmentation tool.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_bmap_util.h')
| -rw-r--r-- | fs/xfs/xfs_bmap_util.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h index 0a3fbc6d7aa8..a54b9fd2254a 100644 --- a/fs/xfs/xfs_bmap_util.h +++ b/fs/xfs/xfs_bmap_util.h @@ -76,4 +76,11 @@ int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip, int xfs_flush_unmap_range(struct xfs_inode *ip, xfs_off_t offset, xfs_off_t len); +int xfs_map_free_space(struct xfs_inode *ip, xfs_off_t off, xfs_off_t len); +#ifdef CONFIG_XFS_RT +int xfs_map_free_rt_space(struct xfs_inode *ip, xfs_off_t off, xfs_off_t len); +#else +# define xfs_map_free_rt_space(ip, off, len) (-EOPNOTSUPP) +#endif + #endif /* __XFS_BMAP_UTIL_H__ */ |