Re: poll: allow f_op->poll to sleep, take #3

From: Davide Libenzi
Date: Sat Nov 22 2008 - 21:35:56 EST


On Sun, 23 Nov 2008, Tejun Heo wrote:

> +static int pollwake(wait_queue_t *wait, unsigned mode, int sync, void *key)
> +{
> + struct poll_wqueues *pwq = wait->private;
> + DECLARE_WAITQUEUE(dummy_wait, pwq->polling_task);
> +
> + set_mb(pwq->triggered, 1);
> +
> + /* perform the default wake up operation */
> + return default_wake_function(&dummy_wait, mode, sync, key);
> +}

Wouldn't it be nicer to un-static try_to_wake_up() (or a wrapper) instead
of setting up a fake wait queue just to use default_wake_function(), just
to wake up a task?


- Davide

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