linux-kernel - Re: Implementing NVMHCI...

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 12 Apr 2009 18:14:21 +0300 (EEST)
From:	Szabolcs Szakacsits <szaka@...s-3g.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Grant Grundler <grundler@...gle.com>,
	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...

Linus Torvalds wrote:

> And people tend to really dislike hardware that forces a particular 
> filesystem on them. Guess how big the user base is going to be if you 
> cannot format the device as NTFS, for example? Hint: if a piece of 
> hardware only works well with special filesystems, that piece of hardware 
> won't be a big seller.
> 
> Modern technology needs big volume to become cheap and relevant.
> 
> And maybe I'm wrong, and NTFS works fine as-is with sectors >4kB. But let 
> me doubt that.

I did not hear about NTFS using >4kB sectors yet but technically 
it should work.

The atomic building units (sector size, block size, etc) of NTFS are 
entirely parametric. The maximum values could be bigger than the 
currently "configured" maximum limits. 

At present the limits are set in the BIOS Parameter Block in the NTFS
Boot Sector. This is 2 bytes for the "Bytes Per Sector" and 1 byte for 
"Sectors Per Block". So >4kB sector size should work since 1993.

64kB+ sector size could be possible by bootstrapping NTFS drivers 
in a different way. 

	Szaka

--
NTFS-3G: http://ntfs-3g.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/