Re: [RFC][PATCH -mm 1/3] PM: Hibernation and suspend notifiers

[Alan Stern]

On Sun, 27 May 2007, Rafael J. Wysocki wrote:

> From: Rafael J. Wysocki <rjw@xxxxxxx>
> 
> Make it possible to register hibernation and suspend notifiers, so that
> subsystems can perform hibernation-related or suspend-related operations that
> should not be carried out by device drivers' .suspend() and .resume() routines.

> +static DEFINE_MUTEX(pm_notifier_lock);
> +
> +static RAW_NOTIFIER_HEAD(pm_chain);

Is there any particular reason you chose to use a RAW_NOTIFIER_HEAD 
with an explicit mutex instead of using a BLOCKING_NOTIFIER_HEAD?

Alan Stern

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