From: "rishi agrawal" <postrishi@gmail.com>
Subject: Re: Copying Data Blocks
Date: Tue, 6 Jan 2009 19:42:34 +0530
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Cc: "Rohit Sharma" <imreckless@gmail.com>, ext4 <linux-ext4@vger.kernel.org>,
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To: "Manish Katiyar" <mkatiyar@gmail.com>
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yes i suppose the donor inode is known
moreover the receiver inode's number is also known

On Tue, Jan 6, 2009 at 6:54 PM, Manish Katiyar <mkatiyar@gmail.com> wrote:

> On Tue, Jan 6, 2009 at 4:06 PM, Rohit Sharma <imreckless@gmail.com> wrote:
> > I want to read data blocks from one inode
> > and copy it to other inode.
> >
> > I mean to copy data from data blocks associated with one inode
> > to the data blocks associated with other inode.
>
> Copying 4K chunk of data itself is a costly operation. and depending
> on the size of your donor inode this can be huge . Why do you want to
> do that ? Do you know the inode of the donor inode ?
>
> thanks -
> Manish
> >
> > Is that possible in kernel space.?
> > --
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-- 
Regards,
Rishi B. Agrawal

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yes i suppose the donor inode is known<div><br></div><div>moreover the receiver inode&#39;s number is also known<br><br><div class="gmail_quote">On Tue, Jan 6, 2009 at 6:54 PM, Manish Katiyar <span dir="ltr">&lt;<a href="mailto:mkatiyar@gmail.com">mkatiyar@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="Ih2E3d">On Tue, Jan 6, 2009 at 4:06 PM, Rohit Sharma &lt;<a href="mailto:imreckless@gmail.com">imreckless@gmail.com</a>&gt; wrote:<br>

&gt; I want to read data blocks from one inode<br>
&gt; and copy it to other inode.<br>
&gt;<br>
&gt; I mean to copy data from data blocks associated with one inode<br>
&gt; to the data blocks associated with other inode.<br>
<br>
</div>Copying 4K chunk of data itself is a costly operation. and depending<br>
on the size of your donor inode this can be huge . Why do you want to<br>
do that ? Do you know the inode of the donor inode ?<br>
<br>
thanks -<br>
<font color="#888888">Manish<br>
</font><div><div></div><div class="Wj3C7c">&gt;<br>
&gt; Is that possible in kernel space.?<br>
&gt; --<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Regards,<br>Rishi B. Agrawal<br><br>
</div>

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