diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-11-09 14:13:11 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2016-12-10 12:39:45 -0800 |
| commit | 29ac8e856cb3694e004037de595dec4ec53d42f2 (patch) | |
| tree | 006df64270ecc128a4b837215c7ef78bd259ff51 /fs/ocfs2/refcounttree.h | |
| parent | 86e59436d406d833a5da4a94aefb3c3be6b26053 (diff) | |
| download | linux-29ac8e856cb3694e004037de595dec4ec53d42f2.tar.gz linux-29ac8e856cb3694e004037de595dec4ec53d42f2.tar.bz2 linux-29ac8e856cb3694e004037de595dec4ec53d42f2.zip | |
ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features
Connect the new VFS clone_range, copy_range, and dedupe_range features
to the existing reflink capability of ocfs2. Compared to the existing
ocfs2 reflink ioctl We have to do things a little differently to support
the VFS semantics (we can clone subranges of a file but we don't clone
xattrs), but the VFS ioctls are more broadly supported.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
v2: Convert inline data files to extents files before reflinking,
and fix i_blocks so that stat(2) output is correct.
v3: Make zero-length dedupe consistent with btrfs behavior.
v4: Use VFS double-inode lock routines and remove MAX_DEDUPE_LEN.
Diffstat (limited to 'fs/ocfs2/refcounttree.h')
| -rw-r--r-- | fs/ocfs2/refcounttree.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h index 6422bbcdb525..4af55bf4b35b 100644 --- a/fs/ocfs2/refcounttree.h +++ b/fs/ocfs2/refcounttree.h @@ -115,4 +115,11 @@ int ocfs2_reflink_ioctl(struct inode *inode, const char __user *oldname, const char __user *newname, bool preserve); +int ocfs2_reflink_remap_range(struct file *file_in, + loff_t pos_in, + struct file *file_out, + loff_t pos_out, + u64 len, + bool is_dedupe); + #endif /* OCFS2_REFCOUNTTREE_H */ |