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Date: Thu, 23 Jun 2005 00:26:09 -0700
From: William Lee Irwin III <wli@holomorphy.com>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
       Linux Memory Management <linux-mm@kvack.org>,
       Hugh Dickins <hugh@veritas.com>, Badari Pulavarty <pbadari@us.ibm.com>
Subject: Re: [patch][rfc] 2/5: micro optimisation for mm/rmap.c
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References: <42BA5F37.6070405@yahoo.com.au> <42BA5F5C.3080101@yahoo.com.au> <42BA5F7B.30904@yahoo.com.au>
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On Thu, Jun 23, 2005 at 05:06:35PM +1000, Nick Piggin wrote:
> +		index = (address - vma->vm_start) >> PAGE_SHIFT;
> +		index += vma->vm_pgoff;
> +		index >>= PAGE_CACHE_SHIFT - PAGE_SHIFT;
> +		page->index = index;

linear_page_index()


-- wli