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authorTao Ma <tao.ma@oracle.com>2009-09-21 07:25:14 +0400
committerJoel Becker <joel.becker@oracle.com>2009-09-23 07:09:51 +0400
commitbd50873dc725a9fa72592ecc986c58805e823051 (patch)
tree8d2d4d514f73b6425bf0bf5bd1806949b84a2489 /fs/ocfs2/refcounttree.h
parent64871b8d62570fabec3b0959d494f8e0b87f5c4b (diff)
downloadlinux-bd50873dc725a9fa72592ecc986c58805e823051.tar.xz
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/refcounttree.h')
-rw-r--r--fs/ocfs2/refcounttree.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h
index 2c238e682570..c1d19b1d3ecc 100644
--- a/fs/ocfs2/refcounttree.h
+++ b/fs/ocfs2/refcounttree.h
@@ -99,4 +99,8 @@ int ocfs2_increase_refcount(handle_t *handle,
u64 cpos, u32 len,
struct ocfs2_alloc_context *meta_ac,
struct ocfs2_cached_dealloc_ctxt *dealloc);
+int ocfs2_reflink_ioctl(struct inode *inode,
+ const char __user *oldname,
+ const char __user *newname,
+ bool preserve);
#endif /* OCFS2_REFCOUNTTREE_H */