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

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Message-ID: <20080520065622.GA13968@2ka.mipt.ru>
Date:	Tue, 20 May 2008 10:56:23 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	David Chinner <dgc@....com>
Cc:	Christoph Lameter <clameter@....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 Tue, May 20, 2008 at 10:25:03AM +1000, David Chinner (dgc@....com) wrote:
> +	filemap_fdatawrite_range(mapping, start, end);
> 
> Where [start,end] span page->index and are is large enough
> to get a substantial sized I/O to disk (say at least SWAP_CLUSTER_MAX
> pages, preferrably larger for 4k page size machines).

Or just sync_inode().

-- 
	Evgeniy Polyakov
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