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Message-id: <1215521471.3249.15.camel@alpha.linsyssoft.com>
Date:	Tue, 08 Jul 2008 18:21:11 +0530
From:	Girish Shilamkar <Girish.Shilamkar@....COM>
To:	Ext4 Mailing List <linux-ext4@...r.kernel.org>
Cc:	adilger@....COM, Theodore Tso <tytso@....edu>
Subject: [PATCH] EXT_MAX_BLOCK for >= 16TB fs

Hi,	
	Here is the patch for same.

Thanks,
Girish

On Mon, 2008-07-07 at 22:25 +0530, Girish Shilamkar wrote:
> Hi,
> 	The magic constant EXT_MAX_BLOCK = 0xffffffff in extents code is used
> in some places to return "invalid block number", and to set the extent
> length = "whole file" in other places.
> 	So with >= 16 TB fs we would prefer to use it differently. We can have
> EXT_UNSET_BLOCK = 1 to indicate "invalid block number" as it will never
> be valid block for allocation. And for "whole file" usecase we can
> continue using current EXT_MAX_BLOCK
> 
> Regards,
> Girish
> 
> 
> 
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