linux-kernel - Re: Linux 2.6.29

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Message-ID: <alpine.LFD.2.00.0903251834470.3032@localhost.localdomain>
Date:	Wed, 25 Mar 2009 18:36:05 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ric Wheeler <rwheeler@...hat.com>
cc:	Jeff Garzik <jeff@...zik.org>, Theodore Tso <tytso@....edu>,
	Ingo Molnar <mingo@...e.hu>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Arjan van de Ven <arjan@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Nick Piggin <npiggin@...e.de>, David Rees <drees76@...il.com>,
	Jesper Krogh <jesper@...gh.cc>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.29



On Wed, 25 Mar 2009, Ric Wheeler wrote:
>
> In this case, you have not gained anything  - same number of barrier
> operations/cache flushes and looser semantics for the transactions?

Um. Except you gained the fact that the filesystem doesn't have to care 
and screw it up. And then we can know that it gets done, regardless of 
what odd things the low-level fs does.

		Linus
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