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From: Jeff Garzik <jgarzik@pobox.com>
To: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: William Lee Irwin III <wli@holomorphy.com>, linux-kernel@vger.kernel.org
Subject: Re: PRD_ENTRIES is 256
Date: Wed, 25 Feb 2004 11:15:12 -0500	[thread overview]
Message-ID: <403CCA10.7030906@pobox.com> (raw)
In-Reply-To: <200402251411.13945.bzolnier@elka.pw.edu.pl>

Bartlomiej Zolnierkiewicz wrote:
> On Wednesday 25 of February 2004 10:53, William Lee Irwin III wrote:
> 
>>PRD_ENTRIES is specified to be precisely 256; on platforms where
>>PAGE_SIZE varies from 4KB the calculation in the current expression
>>defining it is inaccurate, which may cause crashes. This patch changes
>>it to the constant literal 256.
> 
> 
> Ok, thanks.  However I cannot find 256 entries limit in any ATA document
> and from looking at the code 512 entries shouldn't be a problem (?).


I can't find the 256 limit either, but I would swear it exists...  I'll 
ask around.  Certainly it would be nice for lba48 to have larger tables...

	Jeff




      parent reply	other threads:[~2004-02-25 16:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-25  9:53 PRD_ENTRIES is 256 William Lee Irwin III
2004-02-25 13:11 ` Bartlomiej Zolnierkiewicz
2004-02-25 13:18   ` William Lee Irwin III
2004-02-25 16:15   ` Jeff Garzik [this message]

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