linux-ext4 - Re: [patch 12/17] vfs: pagecache usage optimization for pagesize!=blocksize

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Message-ID: <20080728230031.GA22218@infradead.org>
Date:	Mon, 28 Jul 2008 19:00:32 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	akpm@...ux-foundation.org
Cc:	torvalds@...ux-foundation.org, hifumi.hisashi@....ntt.co.jp,
	hch@...radead.org, jack@....cz, linux-ext4@...r.kernel.org,
	nickpiggin@...oo.com.au
Subject: Re: [patch 12/17] vfs: pagecache usage optimization for
	pagesize!=blocksize

On Mon, Jul 28, 2008 at 03:46:36PM -0700, akpm@...ux-foundation.org wrote:
> From: Hisashi Hifumi <hifumi.hisashi@....ntt.co.jp>
> 
> When we read some part of a file through pagecache, if there is a
> pagecache of corresponding index but this page is not uptodate, read IO is
> issued and this page will be uptodate.

I was under the impression we wanted to do this in a nicer way than 
the hacky method?

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