linux-kernel - Re: [PATCH v4] rwsem: Support optimistic spinning

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Message-ID: <20140605083804.GF4926@gmail.com>
Date:	Thu, 5 Jun 2014 10:38:04 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Davidlohr Bueso <davidlohr@...com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Tim Chen <tim.c.chen@...ux.intel.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Alex Shi <alex.shi@...aro.org>,
	Andi Kleen <andi@...stfloor.org>,
	Michel Lespinasse <walken@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	Peter Hurley <peter@...leysoftware.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E.McKenney" <paulmck@...ux.vnet.ibm.com>,
	Jason Low <jason.low2@...com>,
	Aswin Chandramouleeswaran <aswin@...com>,
	"Norton, Scott J" <scott.norton@...com>,
	linux-kernel@...r.kernel.org,
	"Paul E. McKenney" <paulmck@...ibm.com>
Subject: Re: [PATCH v4] rwsem: Support optimistic spinning


When trying to apply this patch again I noticed the following detail:

> From: Davidlohr Bueso <davidlohr@...com>
>
> [...]
>
> Signed-off-by: Davidlohr Bueso <davidlohr@...com>
> Signed-off-by: Tim Chen <tim.c.chen@...ux.intel.com>

That's not a valid signoff sequence - the person sending the patch 
should be the last SOB.

I've changed it to:

 Based-on-work-from: Tim Chen <tim.c.chen@...ux.intel.com>
 Signed-off-by: Davidlohr Bueso <davidlohr@...com>

which I suspect describes the intention of the SOB line fairly?

Thanks,

	Ingo
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