[Ocfs2-devel] [PATCH 0/2] ocfs2: Some patches for reflink. v3

[TaoMa]

Joel Becker wrote:
> On Thu, Oct 15, 2009 at 11:06:53AM +0800, Tao Ma wrote:
>   
>> 	This patch set integrate the fix for the bug tristan found.
>>     
>
> 	These both look good.  You know, if an inode is inline and has
> no xattrs, ie:
>
> (oi->i_dyn_flags & (OCFS2_HAS_XATTR_FL | OCFS2_HAS_INLINE_DATA_FL)) ==
>   OCFS2_HAS_INLINE_DATA_FL
>
> you can just skip the refcount tree entirely.  Copy the inode.  Reinit
> the security if !preserve.  Call it a day.
>   
yeah, that is also one of the reason I moved complete_reflink out of 
create_reflink_node and insert it into __ocfs2_reflink(patch 1). So if 
we detect the situation you mentioned above, we will just copy the inode 
and then go directly to ocfs2_complete_reflink, both create_reflink_node 
and ocfs2_reflink_xattrs will be skipped. That would be quite easy.
> 	But this is a later optimization.
>   
agree.

Regards,
Tao