Re: [gcv v3 27/35] arm: Replace __get_cpu_var uses

From: Christoph Lameter
Date: Thu Sep 05 2013 - 10:24:31 EST


On Thu, 5 Sep 2013, Will Deacon wrote:

> >
> > if (el == DBG_ACTIVE_EL1 &&
> > - local_dec_and_test(this_cpu_ptr(&kde_ref_count)))
> > + this_cpu_dec_return(kde_ref_count))
> > disable &= ~DBG_MDSCR_KDE;
>
> Almost! I think we just need an '== 0' check on the result from the
> decrement, since local_dec_and_test is simply a way to check that we've
> decremented to zero, so this patch would otherwise invert the meaning.

Ok can you take it from here and modify it? I have no build and test
environment set up for ARM.

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