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From: Girish Shilamkar <Girish.Shilamkar@Sun.COM>
To: Ext4 Mailing List <linux-ext4@vger.kernel.org>
Cc: adilger@Sun.COM, Theodore Tso <tytso@mit.edu>
Subject: [PATCH] EXT_MAX_BLOCK for >= 16TB fs
Date: Tue, 08 Jul 2008 18:21:11 +0530	[thread overview]
Message-ID: <1215521471.3249.15.camel@alpha.linsyssoft.com> (raw)
In-Reply-To: <1215449732.1167.11.camel@alpha.linsyssoft.com>

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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  reply	other threads:[~2008-07-08 12:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-07 16:55 [RFC] EXT_MAX_BLOCK for >= 16TB fs Girish Shilamkar
2008-07-08 12:51 ` Girish Shilamkar [this message]
2008-07-08 13:22   ` [PATCH] " Girish Shilamkar
2008-07-08 18:12     ` Girish Shilamkar
2008-07-08 23:56     ` Mingming Cao
2008-07-08 23:58       ` Mingming Cao

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