Re: [PATCH -mm 2/2] Introduce freezer flags
From: Pavel Machek
Date: Fri Apr 27 2007 - 18:08:52 EST
> > > > +#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?
I'm afraid set_bit & friends are only defined on unsigned long. You
can cast, but you may run into some nasty surprise... like damaging
surrounding bytes on 64-bit architectures != x86_64.
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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