From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h
Date: Wed, 13 Jan 2016 12:58:22 -0800
Message-ID: <5696BA6E.4070508@imgtec.com>
References: <1452426622-4471-12-git-send-email-mst@redhat.com>
	<56945366.2090504@imgtec.com>
	<20160112092711.GP6344@twins.programming.kicks-ass.net>
	<20160112102555.GV6373@twins.programming.kicks-ass.net>
	<20160112104012.GW6373@twins.programming.kicks-ass.net>
	<20160112114111.GB15737@arm.com> <569565DA.2010903@imgtec.com>
	<20160113104516.GE25458@arm.com> <56969F4B.7070001@imgtec.com>
	<20160113204844.GV6357@twins.programming.kicks-ass.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Content-Transfer-Encoding: 7bit
Return-path: <virtualization-bounces@lists.linux-foundation.org>
In-Reply-To: <20160113204844.GV6357@twins.programming.kicks-ass.net>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/virtualization>,
	<mailto:virtualization-request@lists.linux-foundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/virtualization/>
List-Post: <mailto:virtualization@lists.linux-foundation.org>
List-Help: <mailto:virtualization-request@lists.linux-foundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/virtualization>,
	<mailto:virtualization-request@lists.linux-foundation.org?subject=subscribe>
Sender: virtualization-bounces@lists.linux-foundation.org
Errors-To: virtualization-bounces@lists.linux-foundation.org
List-Archive: <https://lore.kernel.org/linux-arch/>
List-Post: <mailto:linux-arch@vger.kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>, Will Deacon <will.deacon@arm.com>, virtualization@lists.linux-foundation.org, "H. Peter Anvin" <hpa@zytor.com>, sparclinux@vger.kernel.org, Ingo Molnar <mingo@kernel.org>, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Russell King - ARM Linux <linux@arm.linux.org.uk>, user-mode-linux-devel@lists.sourceforge.net, linux-sh@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>, x86@kernel.org, xen-devel@lists.xenproject.org, Ingo Molnar <mingo@elte.hu>, Paul McKenney <paulmck@linux.vnet.ibm.com>, linux-xtensa@linux-xtensa.org, james.hogan@imgtec.com, Arnd Bergmann <arnd@arndb.de>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>, adi-buildroot-devel@lists.sourceforge.net, ddaney.cavm@gmail.com, Thomas Gleixner <tglx@linutronix.de>, linux-metag@vger.kernel.orgli
List-ID: <linux-s390.vger.kernel.org>

On 01/13/2016 12:48 PM, Peter Zijlstra wrote:
> On Wed, Jan 13, 2016 at 11:02:35AM -0800, Leonid Yegoshin wrote:
>
>> I ask HW team about it but I have a question - has it any relationship with
>> replacing MIPS SYNC with lightweight SYNCs (SYNC_WMB etc)?
> Of course. If you cannot explain the semantics of the primitives you
> introduce, how can we judge the patch.
>
>
You missed a point - it is a question about replacement of SYNC with 
lightweight primitives. It is NOT a question about multithread system 
behavior without any SYNC. The answer on a latest Will's question lies 
in different area.

- Leonid.