linux-kernel - Re: What to do about the 2TB limit on HDIO

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Date:	Tue, 15 Apr 2008 11:16:40 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Tejun Heo <htejun@...il.com>, Mark Lord <lkml@....ca>,
	Greg KH <gregkh@...e.de>, Jens Axboe <axboe@...nel.dk>,
	Jeff Garzik <jgarzik@...ox.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: What to do about the 2TB limit on HDIO_GETGEO ?

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

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