linux-kernel - Re: [v6, 1/4] atomics: Allow architectures to define their own __atomic_op

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Date:	Mon, 22 Feb 2016 20:45:55 +1100 (AEDT)
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Boqun Feng <boqun.feng@...il.com>, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Cc:	Waiman Long <waiman.long@...com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Peter Zijlstra <peterz@...radead.org>,
	Boqun Feng <boqun.feng@...il.com>,
	Will Deacon <will.deacon@....com>,
	Paul Mackerras <paulus@...ba.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [v6, 1/4] atomics: Allow architectures to define their own __atomic_op_* helpers

On Tue, 2015-15-12 at 14:24:14 UTC, Boqun Feng wrote:
> Some architectures may have their special barriers for acquire, release
> and fence semantics, so that general memory barriers(smp_mb__*_atomic())
> in the default __atomic_op_*() may be too strong, so allow architectures
> to define their own helpers which can overwrite the default helpers.
> 
> Signed-off-by: Boqun Feng <boqun.feng@...il.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/e1ab7f39d7e0dbfbdefe148be3

cheers