linux-kernel - Re: [patch 10/21] buffer heads: Support slab defrag

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Message-ID: <Pine.LNX.4.64.0805201854080.12560@schroedinger.engr.sgi.com>
Date:	Tue, 20 May 2008 18:56:09 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Evgeniy Polyakov <johnpol@....mipt.ru>
cc:	David Chinner <dgc@....com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Mel Gorman <mel@...net.ie>, andi@...stfloor.org,
	Rik van Riel <riel@...hat.com>,
	Pekka Enberg <penberg@...helsinki.fi>, mpm@...enic.com
Subject: Re: [patch 10/21] buffer heads: Support slab defrag

On Wed, 21 May 2008, Evgeniy Polyakov wrote:

> Cristoph, is this example you wnated to check out? It will only try to
> write .nr_to_write pages between .range_start and .range_end without
> syncing inode info itself.

Well that is what Dave wants. I'd rather go the safe route for now and 
defer this until later. I think you are much more an expert on the 
filesystems and I/O paths than I am. So I'd rather take my hands of as 
soon as possible.

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