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<h2><b><FONT FACE="ARIAL NARROW, HELVETICA" SIZE="5">Work item list as of 7/11/2002</FONT></b></h2>

<P>
The outstanding work items for XFS for Linux
are listed below, along with the
proposed release of XFS Linux for which the
item will be implented and the assigned
owner for the item.
</P>

<OL>

<LI>
<b>Real-time subvolumes</b>
<p>
The code is complete (via ioctl).  Needs to be tested.
</p>
<p>
Planned release:  tbd
</p>
<p>
Owner: Nate Straz 
</p>
</LI>

<LI>
<b>Multiple filesystem blocksize support for block size < page size</b>
</p>
<p>
Planned release:  1.2 (code complete in CVS)
</p>
<p>
Owner: Nathan Scott
</p>
</LI>

<LI>
<b>Make log writes stripe aligned for RAID-5 devices</b>
<p>
Both the log size and I/O size need to be parity group aligned.  This is an
issue for both internal and external logs.
</p>
<p>
Planned release:  1.2 (code complete in CVS)
</p>
<p>
Owner: Steve Lord
</p>
</LI>

<LI>
<b>Zero unwritten extents</b>
<p>
This involves zeroing allocated unwritten disk space.  There is currently a
security hole here.
</p>
<p>
Planned release:  tbd
</p>
<p>
Owner: Keith Owens
</p>
</LI>

<LI>
<b>Multi-threaded direct I/O writes</b>
<p>
There is currently a single lock for this
write path.
</p>
<p>
Planned release:  tbd
</p>
<p>
Owner: Unassigned
</p>
</LI>
</OL>


<h3><b>Features that will not be implemented</b></h3>

There are no plans to implement the following features
in XFS for Linux. 

<OL>

<LI>
<b>Address the 2 TByte device limitation</b>
<p>
Block devices have a 2 TByte size limitation.  Will wait for Linux to address
this.
</p>
</LI>

<LI>
<b>Multiple filesystem blocksize support for block size > page size</b>
</LI>

<br>
<br>

<LI>
<b>Guaranteed Rate I/O (GRIO)</b>
</LI>
</OL>



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