linux-kernel - Re: [11/36] Use page_cache

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Date:	Thu, 30 Aug 2007 11:14:39 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Dmitry Monakhov <dmonakhov@...ru>
cc:	torvalds@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>,
	Mel Gorman <mel@...net.ie>,
	William Lee Irwin III <wli@...omorphy.com>,
	David Chinner <dgc@....com>,
	Jens Axboe <jens.axboe@...cle.com>,
	Badari Pulavarty <pbadari@...il.com>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Fengguang Wu <fengguang.wu@...il.com>,
	swin wang <wangswin@...il.com>, totty.lu@...il.com,
	"H. Peter Anvin" <hpa@...or.com>, joern@...ybastard.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [11/36] Use page_cache_xxx in fs/buffer.c

On Thu, 30 Aug 2007, Dmitry Monakhov wrote:

> On 12:06 Tue 28 Aug     , clameter@....com wrote:
> > Use page_cache_xxx in fs/buffer.c.
> submit_bh wasn't changed this means what bio pages may have huge size
> without respect to queue reqsrictions (q->max_hw_segments, and etc)
> At least driver/md/raid0 will be broken by you'r patch.

Hmmm... So we need to check the page size and generate multiple requests 
in submit_bh?
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