linux-kernel - Re: Implementing NVMHCI...

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Message-ID: <alpine.LFD.2.00.0904111250370.4583@localhost.localdomain>
Date:	Sat, 11 Apr 2009 12:52:21 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
cc:	Jeff Garzik <jeff@...zik.org>,
	Linux IDE mailing list <linux-ide@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: Implementing NVMHCI...



On Sat, 11 Apr 2009, Alan Cox wrote:
>
> > 	  The spec describes the sector size as
> > 	  "512, 1k, 2k, 4k, 8k, etc."   It will be interesting to reach
> > 	  "etc" territory.
> 
> Over 4K will be fun.

And by "fun", you mean "irrelevant".

If anybody does that, they'll simply not work. And it's not worth it even 
trying to handle it.

That said, I'm pretty certain Windows has the same 4k issue, so we can 
hope nobody will ever do that kind of idiotically broken hardware. Of 
course, hardware people often do incredibly stupid things, so no 
guarantees.

		Linus
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