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

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Message-ID: <47E96263.9000808@zytor.com>
Date:	Tue, 25 Mar 2008 13:36:51 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	Greg KH <gregkh@...e.de>, Mark Lord <lkml@....ca>,
	Jens Axboe <axboe@...nel.dk>, Jeff Garzik <jgarzik@...ox.com>,
	Tejun Heo <htejun@...il.com>,
	Linus Torvalds <torvalds@...l.org>,
	Andrew Morton <akpm@...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 ?

Randy Dunlap wrote:
>>
>> Come on people, adding symlinks for device major:minor numbers in sysfs
>> to save a few 10s of lines of userspace code?  Can things get sillier?
>>
>> You can add a single udev rule to probably build these in a tree in /dev
>> if you really need such a thing...
>>
>> And what's wrong with your new ioctl recomendation?
> 
> Ah, there's some sanity.  :)
> 

It's not so much an issue of a few tens of lines of user space code, but 
rather the fact that something that should be O(1) is currently O(n).

	-hpa
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