From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [RFC 1/2] JBD: slab management support for large block(>8k)
Date: Mon, 3 Sep 2007 20:33:08 +0100
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Cc: Christoph Hellwig <hch@infradead.org>,
	Mingming Cao <cmm@us.ibm.com>, linux-fsdevel@vger.kernel.org,
	adilger@clusterfs.com, sho@tnes.nec.co.jp,
	ext4 development <linux-ext4@vger.kernel.org>,
	linux-kernel@vger.kernel.org
To: Christoph Lameter <clameter@sgi.com>
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On Mon, Sep 03, 2007 at 12:31:49PM -0700, Christoph Lameter wrote:
> So you'd be fine with replacing the allocs with
> 
> get_free_pages(GFP_xxx, get_order(size)) ?

Yes.  And rip out all that code related to setting up the slabs.  I plan
to add WARN_ONs to bio_add_page and friends to detect further usage of
slab pages if there is any.