On Friday, 27 April 2007 23:49, Rafael J. Wysocki wrote:
> On Friday, 27 April 2007 23:40, Gautham R Shenoy wrote:
> > On Fri, Apr 27, 2007 at 05:40:16PM +0200, Rafael J. Wysocki wrote:
> > > From: Rafael J. Wysocki <[email protected]>
> > >
> > > Move all of the freezer-related flags to a separate field in task_struct and
> > > introduce functions to operate them using set_bit() etc.
> > >
> > >
> > > Index: linux-2.6.21-rc7-mm2/include/linux/sched.h
> > > ===================================================================
> > > --- linux-2.6.21-rc7-mm2.orig/include/linux/sched.h
> > > +++ linux-2.6.21-rc7-mm2/include/linux/sched.h
> > > @@ -1006,7 +1006,10 @@ struct task_struct {
> > > /* Deadlock detection and priority inheritance handling */
> > > struct rt_mutex_waiter *pi_blocked_on;
> > > #endif
> > > -
> > > +#ifdef CONFIG_FREEZER
> > > + /* Used by the process freezer, defined in freezer.h */
> > > + unsigned int freezer_flags;
> >
> > unsigned long freezer_flags; ??
>
> I guess so.
Still, on x86_64, for example, we'll waste 4 bytes by using 'unsigned long'
here, which I wouldn't like to do.
Is it acceptable to use explicit type casting in set_bit() and friends?
Rafael
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