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

Rafael J. Wysocki
2007-05-28T17:29:37Z

On Monday, 28 May 2007 17:56, Alan Stern wrote:
> On Sun, 27 May 2007, Rafael J. Wysocki wrote:
>
> > From: Rafael J. Wysocki <rjw@sisk.pl>
> >
> > 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?

Hmm, not really. I based it on the CPU hotplug notifiers, actually.

I'll see if I can use BLOCKING_NOTIFIER_HEAD.

Greetings,
Rafael