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

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Message-ID: <1401984187.2970.513.camel@schen9-DESK>
Date:	Thu, 05 Jun 2014 09:03:07 -0700
From:	Tim Chen <tim.c.chen@...ux.intel.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Davidlohr Bueso <davidlohr@...com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	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

On Thu, 2014-06-05 at 10:38 +0200, Ingo Molnar wrote:
> 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

It's fine with me.  Thanks.

Tim



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