[PATCH 1/3] PM / Sleep: Make [un]lock_system_sleep() generic

Tejun Heo tj at kernel.org
Mon Dec 5 12:14:43 EST 2011


Hello,

On Mon, Dec 05, 2011 at 01:32:38AM +0530, Srivatsa S. Bhat wrote:
> +static inline void lock_system_sleep(void)
> +{
> +	/* simplified freezer_do_not_count() */
> +	current->flags |= PF_FREEZER_SKIP;
> +	mutex_lock(&pm_mutex);
> +}
> +
> +static inline void unlock_system_sleep(void)
> +{
> +	mutex_unlock(&pm_mutex);
> +	/* simplified freezer_count() */
> +	current->flags &= ~PF_FREEZER_SKIP;
> +}

BTW, don't we want try_to_freeze() there?  What's the reason for not
using freezer_count()?

Thanks.

-- 
tejun



More information about the kexec mailing list