Re: [4/5] eliminate bh waitqueue hashtable

[Andrew Morton <akpm@osdl.org>]

William Lee Irwin III <wli@holomorphy.com> wrote:
>
> +static inline int wait_on_bit(void *word, int bit,
>  +				int (*action)(void *), unsigned mode)
>  +{
>  +	DEFINE_WAIT_BIT(q, word, bit);
>  +	wait_queue_head_t *wqh;
>  +
>  +	if (!test_bit(bit, word))
>  +		return 0;
>  +
>  +	wqh = bit_waitqueue(word, bit);
>  +	return __wait_on_bit(wqh, &q, word, bit, action, mode);
>  +}

This is still all inlined.  Given that we're going to schedule away,
don't you think we should out-of-line the slowpath?  As I said yesterday:

static inline int wait_on_bit(...)
{
	if (test_bit(...))
		return out_of_line_wait_on_bit(...);
	return 0;
}

I merged this latest batch into -mm.