Re: [patch][rfc] 2/5: micro optimisation for mm/rmap.c

William Lee Irwin III
2005-06-23T07:26:09Z

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