linux-kernel - Re: blk_queue_hardsect

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Date:	Fri, 6 Jun 2008 09:54:33 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Anil kumar <anils_r@...oo.com>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: blk_queue_hardsect_size 520-byte sector

On Thu, Jun 05 2008, Anil kumar wrote:
> Hi,
> 
> Can I call blk_queue_hardsect_size in a driver and set it to 520-byte
> as hardware sector size.  How does the kernel and block layers take
> the request, will it be in multiples of 520-bytes aligned or 512 bytes
> aligned?

No, Linux only supports power-of-2 hardware block sizes I'm afraid.

-- 
Jens Axboe

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