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Date: Wed, 6 Jan 2016 10:07:07 +0800
From: Boqun Feng <boqun.feng@gmail.com>
To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
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        Thomas Gleixner <tglx@linutronix.de>,
        Will Deacon <will.deacon@arm.com>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Waiman Long <waiman.long@hp.com>, Davidlohr Bueso <dave@stgolabs.net>,
        "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [PATCH v6 2/4] powerpc: atomic: Implement atomic{,64}_*_return_*
 variants
Message-ID: <20160106020707.GA27312@fixme-laptop.cn.ibm.com>
References: <1450189457-10589-1-git-send-email-boqun.feng@gmail.com>
 <1450189457-10589-3-git-send-email-boqun.feng@gmail.com>
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Hi all,

I will resend this one to avoid a potential conflict with:

http://article.gmane.org/gmane.linux.kernel/2116880

by open coding smp_lwsync() with:

__asm__ __volatile__(PPC_ACQUIRE_BARRIER "" : : : "memory");

Regards,
Boqun

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