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Date: Thu, 9 Aug 2007 12:15:07 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Peter Zijlstra <a.p.zijlstra@chello.nl>
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Subject: Re: [PATCH 17/23] mm: count writeback pages per BDI
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On Fri, 3 Aug 2007, Peter Zijlstra wrote:

>  						page_index(page),
>  						PAGECACHE_TAG_WRITEBACK);
> +			if (bdi_cap_writeback_dirty(bdi))
> +				__dec_bdi_stat(bdi, BDI_WRITEBACK);

Why are these not incremented and decremented in the exact location of 
NR_WRITEBACK?