linux-kernel - Re: Integration of SCST in the mainstream Linux kernel

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

Message-ID: <alpine.LFD.1.00.0802041718140.3237@woody.linux-foundation.org>
Date:	Mon, 4 Feb 2008 17:20:57 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jeff Garzik <jeff@...zik.org>
cc:	"J. Bruce Fields" <bfields@...ldses.org>,
	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Vladislav Bolkhovitin <vst@...b.net>,
	Bart Van Assche <bart.vanassche@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	linux-scsi@...r.kernel.org, scst-devel@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Mike Christie <michaelc@...wisc.edu>
Subject: Re: Integration of SCST in the mainstream Linux kernel



On Mon, 4 Feb 2008, Jeff Garzik wrote:
> 
> Both of these are easily handled if the server is 100% in charge of managing
> the filesystem _metadata_ and data.  That's what I meant by complete control.
> 
> i.e. it not ext3 or reiserfs or vfat, its a block device or 1000GB file
> managed by a userland process.

Oh ok.

Yes, if you bring the filesystem into user mode too, then the problems go 
away - because now your NFSD can interact directly with the filesystem 
without any kernel/usermode abstraction layer rules in between. So that 
has all the same properties as moving NFSD entirely into the kernel.

			Linus
--
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/