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| author | Tao Ma <tao.ma@oracle.com> | 2009-09-21 05:25:14 +0200 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2009-09-23 05:09:51 +0200 |
| commit | bd50873dc725a9fa72592ecc986c58805e823051 (patch) | |
| tree | 8d2d4d514f73b6425bf0bf5bd1806949b84a2489 /fs/ocfs2/ocfs2_fs.h | |
| parent | ocfs2: Enable refcount tree support. (diff) | |
| download | linux-bd50873dc725a9fa72592ecc986c58805e823051.tar.xz linux-bd50873dc725a9fa72592ecc986c58805e823051.zip | |
ocfs2: Add ioctl for reflink.
The ioctl will take 3 parameters: old_path, new_path and
preserve and call vfs_reflink. It is useful when we backport
reflink features to old kernels.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Diffstat (limited to 'fs/ocfs2/ocfs2_fs.h')
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 4a4565b7bc14..e9431e4a5e7c 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -301,6 +301,15 @@ struct ocfs2_new_group_input { #define OCFS2_IOC_GROUP_ADD _IOW('o', 2,struct ocfs2_new_group_input) #define OCFS2_IOC_GROUP_ADD64 _IOW('o', 3,struct ocfs2_new_group_input) +/* Used to pass 2 file names to reflink. */ +struct reflink_arguments { + __u64 old_path; + __u64 new_path; + __u64 preserve; +}; +#define OCFS2_IOC_REFLINK _IOW('o', 4, struct reflink_arguments) + + /* * Journal Flags (ocfs2_dinode.id1.journal1.i_flags) */ |