From mboxrd@z Thu Jan  1 00:00:00 1970
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: What to do about the 2TB limit on HDIO_GETGEO ?
Date: Tue, 15 Apr 2008 11:16:40 -0700
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, Dan Williams <dan.j.williams@intel.com>, Kay Sievers <kay.sievers@vrfy.org>, Tejun Heo <htejun@gmail.com>, Mark Lord <lkml@rtr.ca>, Greg KH <gregkh@suse.de>, Jens Axboe <axboe@kernel.dk>, Jeff Garzik <jgarzik@pobox.com>, Linus Torvalds <torvalds@linux-foundation.org>, Linux Kernel <linux-kernel@vger.kernel.org>, IDE/ATA development list <linux-ide@vger.kernel.org>, linux-scsi <linux-scsi@vger.kernel.org>
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James Bottomley wrote:
> 
> The expressed preference was simply to expand the ioctl (or add a new
> one that got the required information without having to go through the
> old HDIOGETGEO path to extract the value from a fictitious geometry).
> 
> Greg was a bit sceptical of the value of the above proposal ...
> 

However, you have to admit that kind of defeats the whole point of 
having this information in sysfs.  IMNSHO, even scanning sysfs is better 
than keep adding binary ioctls.

	-hpa