Re: page fault scalability patch V8: [2/7] avoid page_table_lock in handle_mm_fault

> +	if (!ptep_cmpxchg(vma, addr, page_table, orig_entry, entry))
> +	{

wrong brace placement.

> +			if (!pmd_test_and_populate(mm, pmd, new))
> +				pte_free(new);
> +                        else

indentation using spaces instead of tabs

> +			pteval = ptep_xchg_flush(vma, address, pte, pgoff_to_pte(page->index));

please make sure lines are never longer than 80 characters
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