linux-ext4 - Re: Block allocation

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Message-ID: <19722589.post@talk.nabble.com>
Date:	Mon, 29 Sep 2008 05:01:38 -0700 (PDT)
From:	vineetagarwal <checkout.vineet@...il.com>
To:	linux-ext4@...r.kernel.org
Subject: Re: Block allocation


thank you for replying .
well iam working on a project where i need to allocate few blockgroups for
manipulation of data.
yeah i can write the code but i was actually thinking that could i somehow
manipulate the code at top level of allocation , so that not much changes


Theodore Ts'o wrote:
> 
> On Sat, Sep 27, 2008 at 08:07:06AM -0700, vineetagarwal wrote:
>> 
>> I want to allocate few blocks from a blockgroup in ext2 within a range of
>> offset specified by user. Is it possible of doing so if yes then can
>> someone
>> please explain.As i know balloc.c and ialloc.c are responsible for it and
>> they work on entire file system can i somehow manipulate it for ceratin
>> ranges.
>> 
>> For Ex
>> let say i provide a range 100 - 3000. Can i allocate few blocks within
>> this
>> range .
> 
> While the filesystem mounted (and accessed through the kernel) or
> unmounted (and accessed via libext2fs)?  Anything is possible. if you
> are willing to write some code....
> 
> Why do you need to do this, and is this for some class or problem set?
> 
>        	   	      	    	   	- Ted
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