linux-ext4 - Re: Copying Data Blocks

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Message-ID: <ea11fea30901060524n559a48f1h85bbf27be5b30b50@mail.gmail.com>
Date:	Tue, 6 Jan 2009 18:54:49 +0530
From:	"Manish Katiyar" <mkatiyar@...il.com>
To:	"Rohit Sharma" <imreckless@...il.com>
Cc:	ext4 <linux-ext4@...r.kernel.org>,
	Kernelnewbies <kernelnewbies@...linux.org>
Subject: Re: Copying Data Blocks

On Tue, Jan 6, 2009 at 4:06 PM, Rohit Sharma <imreckless@...il.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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