linux-kernel - Re: [RFC PATCH 1/9] powerpc: allocate sys

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Date:	Mon, 31 Aug 2015 15:32:54 +0000 (UTC)
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-api <linux-api@...r.kernel.org>,
	linux-kernel@...r.kernel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [RFC PATCH 1/9] powerpc: allocate sys_membarrier system call
 number

----- On Aug 31, 2015, at 2:54 AM, Michael Ellerman mpe@...erman.id.au wrote:

> On Thu, 2015-08-27 at 13:56 -0400, Mathieu Desnoyers wrote:
>> Allow it to be used from SPU, since it should not have unwanted
>> side-effects.
>> 
>> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
>>   apply this patch, build/run a membarrier-enabled kernel, and do make
>>   kselftest. ]
>> 
>> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
>> CC: Andrew Morton <akpm@...ux-foundation.org>
>> CC: linux-api@...r.kernel.org
>> CC: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>> CC: Paul Mackerras <paulus@...ba.org>
>> CC: Michael Ellerman <mpe@...erman.id.au>
>> CC: linuxppc-dev@...ts.ozlabs.org
> 
> Thanks.
> 
> I get:
> 
> $ ./membarrier_test
> membarrier MEMBARRIER_CMD_QUERY syscall available.
> membarrier: MEMBARRIER_CMD_SHARED success.
> membarrier: tests done!
> 
> Which looks good.
> 
> Assuming the membarrier support hits 4.3, I'll take this via my tree for 4.3
> also.

Great! I'll take care of your comments about self-tests,

Thanks,

Mathieu

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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