linux-kernel - Re: [PATCH v2 16/18] x86: io: implement dummy relaxed accessor macros for writes

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Message-ID: <537F736F.4070002@zytor.com>
Date:	Fri, 23 May 2014 09:12:31 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Will Deacon <will.deacon@....com>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"arnd@...db.de" <arnd@...db.de>,
	"monstr@...str.eu" <monstr@...str.eu>,
	"dhowells@...hat.com" <dhowells@...hat.com>,
	"broonie@...aro.org" <broonie@...aro.org>,
	"benh@...nel.crashing.org" <benh@...nel.crashing.org>,
	"paulmck@...ux.vnet.ibm.com" <paulmck@...ux.vnet.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v2 16/18] x86: io: implement dummy relaxed accessor macros
 for writes

On 05/23/2014 08:56 AM, Peter Zijlstra wrote:
> On Fri, May 23, 2014 at 08:43:01AM -0700, H. Peter Anvin wrote:
>> On 05/23/2014 08:34 AM, Will Deacon wrote:
>>> 
>>> There is also a documentation patch [1] in this series but,
>>> again, I didn't CC everybody on it. Sorry, but the level of
>>> interest this sort of stuff generates amongst kernel developers
>>> is close to zero so I only included people I thought cared on
>>> CC for the entire series. I'm stuck between a rock and a hard
>>> place trying to CC interested people whilst at the same time 
>>> trying to avoid spamming all the arch maintainers.
>>> 
>> 
>> If you are sending me a patch, please include me on the cover
>> letter for the patch series.  You don't have to send me the
>> entire patch series (although for something like a Documentation
>> patch which affects x86 I would consider including the union list
>> as well.)
>> 
>> I think regardless of level of interest, the definition of 
>> cross-architectural operations is exactly the arch maintainers
>> job, so it isn't really out of place to "spam" us...
> 
> So the one issue I had with that, is that if one tries to send an
> email to all arch maintainers + linux-arch + linux-kernel, the
> header gets too big and vger chokes and davem slaps you.
> 
> So while its possibly desirable to do big unions with 0/xx and the
> like, its practically infeasible.
> 

... or at least requires the use of a particular advanced technology
called Bcc:.  Not that I like Bcc:s, mind you, but it is probably
better in this case.

I have no idea how smart vger is, but it would be interesting if it
could ignore addresses from the MAINTAINERS list...

	-hpa

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