linux-kernel - Re: ATA support for 4k sector size

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Message-ID: <49A6B272.2070905@zytor.com>
Date:	Thu, 26 Feb 2009 07:17:06 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Karel Zak <kzak@...hat.com>
CC:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Matthew Wilcox <matthew@....cx>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, sandeen@...hat.com
Subject: Re: ATA support for 4k sector size

Karel Zak wrote:
> On Wed, Feb 25, 2009 at 03:33:46PM -0800, H. Peter Anvin wrote:
>> virtually every partition table format contains a sector size  
>> dependency
> 
>  Is it true that "every partition table format"? I see in
>  fs/partitions/ that only ibm.c and msdos.c care about a sector size.
>  It seems that the others formats are based on 512 sectors only.
> 

And do they do so correctly?

Looking at the UEFI spec for one, the GPT partition table format
definitely has a logical sector size dependency.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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