On Sat, 6 Feb 2010, Andi Kleen wrote:
> > > +static int slab_memory_callback(struct notifier_block *self,
> > > + unsigned long action, void *arg)
> > > +{
> > > + struct memory_notify *mn = (struct memory_notify *)arg;
> >
> > No cast necessary.
>
> It's standard practice to cast void *.
>
$ grep -r "struct memory_notify.*=" *
arch/powerpc/platforms/pseries/cmm.c: struct memory_notify *marg = arg;
drivers/base/node.c: struct memory_notify *mnb = arg;
drivers/net/ehea/ehea_main.c: struct memory_notify *arg = data;
mm/ksm.c: struct memory_notify *mn = arg;
mm/slub.c: struct memory_notify *marg = arg;
mm/slub.c: struct memory_notify *marg = arg;
mm/page_cgroup.c: struct memory_notify *mn = arg;
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