linux-kernel - Re: [PATCH 1/7] block: Add block_flush

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Message-ID: <87ljqmlqm5.fsf@basil.nowhere.org>
Date:	Mon, 30 Mar 2009 22:09:38 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Chris Mason <chris.mason@...cle.com>
Cc:	Jeff Garzik <jeff@...zik.org>, Jens Axboe <jens.axboe@...cle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Fernando Luis Vázquez Cao 
	<fernando@....ntt.co.jp>, Christoph Hellwig <hch@...radead.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>,
	david@...morbit.com, tj@...nel.org
Subject: Re: [PATCH 1/7] block: Add block_flush_device()

Chris Mason <chris.mason@...cle.com> writes:
>
> As far as I know, reiserfs is the only one actively using it to choose
> different code.  It moves a single wait_on_buffer when barriers are on,
> which I took out once to simplify the code.  Ric saw it in some
> benchmark numbers and I put it back in.
>
> Given that it was a long time ago, I don't have a problem with changing
> it to work like all the other filesystems.

When it was a win on reiserfs back then maybe it would be a win
on ext4 or xfs today too?

-Andi


-- 
ak@...ux.intel.com -- Speaking for myself only.
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