Re: [PATCH 2/2] rwsem: Move powerpc atomic-long based implementation to asm-generic

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On Fri, 2010-08-20 at 08:43 +0200, Sam Ravnborg wrote:
> > diff --git a/include/asm-generic/rwsem-cmpxchg.h b/include/asm-generic/rwsem-cmpxchg.h
> > new file mode 100644
> > index 0000000..2b1c859
> > --- /dev/null
> > +++ b/include/asm-generic/rwsem-cmpxchg.h
> > @@ -0,0 +1,183 @@
> > +#ifndef _RWSEM_CMPXCHG_H
> > +#define _RWSEM_CMPXCHG_H
> > +
> > +#ifndef _LINUX_RWSEM_H
> > +#error "Please don't include <asm/rwsem.h> directly, use <linux/rwsem.h> instead."
> > +#endif
> > +
> > +#ifdef __KERNEL__
> 
> #ifdef __KERNEL__ is only relevant for exported headers.
> For kernel only headers like this is does not make sense,
> but it does not harm.

Well, it was there in the first place, I think we've carried around
forever, but as you say, it doesn't really harm.

Ben.


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