From: Tao Ma Date: Sat, 22 Aug 2009 15:54:27 +0000 (+0800) Subject: ocfs2: Add normal functions for reflink a normal file's extents. X-Git-Tag: v2.6.32-rc1~173^2~24 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=110a045aca62f6f564e3b68f89af2a3a5a6ecff2;p=pandora-kernel.git 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 --- Reading git-diff-tree failed