linux-kernel - Re: [PATCH v2] kernel/locking: mutex: simplify access to the first entry in the wait-list

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Message-ID: <20131213140833.GB12379@gmail.com>
Date:	Fri, 13 Dec 2013 15:08:33 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andrzej Pietrasiewicz <andrzej.p@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	linux-kernel@...r.kernel.org,
	'Marek Szyprowski' <m.szyprowski@...sung.com>,
	'Ingo Molnar' <mingo@...hat.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2] kernel/locking: mutex: simplify access to the first
 entry in the wait-list


* Peter Zijlstra <peterz@...radead.org> wrote:

> On Fri, Dec 13, 2013 at 07:24:06AM +0100, Andrzej Pietrasiewicz wrote:
> > Hello Ingo & Peter,
> > 
> > I added Greg on Cc.
> 
> > For quite a long time I've been sending the same SOB lines to the
> > linux-usb list.
> 
> Then Greg is more forgiving. Doesn't make it right though.

Also, it's easy to not notice, and it has no testable side effects.

Yet if mistakes _are_ noticed like in this case then the inconsistency 
should be fixed, as the SOB chains have specific meaning.

Thanks,

	Ingo
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