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Message-ID: <20161110213334.GZ3117@twins.programming.kicks-ass.net>
Date: Thu, 10 Nov 2016 22:33:34 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Elena Reshetova <elena.reshetova@...el.com>
Cc: kernel-hardening@...ts.openwall.com, keescook@...omium.org,
arnd@...db.de, tglx@...utronix.de, mingo@...hat.com,
h.peter.anvin@...el.com, will.deacon@....com,
Hans Liljestrand <ishkamiel@...il.com>,
David Windsor <dwindsor@...il.com>
Subject: Re: [RFC v4 PATCH 12/13] x86: implementation for HARDENED_ATOMIC
On Thu, Nov 10, 2016 at 10:24:47PM +0200, Elena Reshetova wrote:
> +static __always_inline int atomic_cmpxchg_wrap(atomic_wrap_t *v, int old, int new)
> +{
> + return cmpxchg(&v->counter, old, new);
> +}
WTH does that even mean, a wrap for a cmpxchg.
I seriously detest this interface
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