linux-kernel - Re: [RFC PATCH v2 6/9] arm: allocate sys

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Message-ID: <886006042.10465.1442497073084.JavaMail.zimbra@efficios.com>
Date:	Thu, 17 Sep 2015 13:37:53 +0000 (UTC)
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-api <linux-api@...r.kernel.org>,
	Michael Jeanson <mjeanson@...icios.com>
Subject: Re: [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call
 number

----- On Sep 17, 2015, at 9:13 AM, Russell King - ARM Linux linux@....linux.org.uk wrote:

> On Wed, Sep 16, 2015 at 06:27:10PM +0000, Mathieu Desnoyers wrote:
>> ----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers
>> mathieu.desnoyers@...icios.com wrote:
>> 
>> > [ 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. ]
>> 
>> Hi,
>> 
>> We tested the system call on our ARM board (Wandboard, SoC
>> Freescale i.MX6 Quad) by applying this patch on top of
>> Linux 4.3-rc1. Both the membarrier kselftest and
>> Userspace RCU regression tests (the latter manually wired up
>> on sys_membarrier) work fine.
>> 
>> Tested-by: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
>> 
>> sys_membarrier has been pulled into Linux 4.3-rc1. Please
>> feel free to wire it up on ARM.
> 
> Well, it's not going to end up with 388, but 389, because we also have
> userfaultfd added in the same merge window, and I follow the x86
> syscall ordering when adding to ARM.

That's fine with me!

Thanks,

Mathieu

> 
> --
> FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
> according to speedtest.net.

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