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| author | Tao Ma <tao.ma@oracle.com> | 2009-08-22 23:54:27 +0800 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2009-09-22 20:09:38 -0700 |
| commit | 110a045aca62f6f564e3b68f89af2a3a5a6ecff2 (patch) | |
| tree | d7c2df9a59e527eb14add4daf1c0107e486715f4 /block | |
| parent | 37f8a2bfaa8364dd3644cccee8824bb8f5e409a5 (diff) | |
| download | lwn-110a045aca62f6f564e3b68f89af2a3a5a6ecff2.tar.gz lwn-110a045aca62f6f564e3b68f89af2a3a5a6ecff2.zip | |
ocfs2: Add normal functions for reflink a normal file's extents.
2 major functions are added in this patch.
ocfs2_attach_refcount_tree will create a new refcount tree to the
old file if it doesn't have one and insert all the extent records
to the tree if they are not refcounted.
ocfs2_create_reflink_node will:
1. set the refcount tree to the new file.
2. call ocfs2_duplicate_extent_list which will iterate all the
extents for the old file, insert it to the new file and increase
the corresponding referennce count.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Diffstat (limited to 'block')
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