linux-kernel - Re: [PATCH v2 4/4] futex: Avoid taking hb lock if nothing to wakeup

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Message-ID: <20131210182847.GB20770@gmail.com>
Date:	Tue, 10 Dec 2013 19:28:47 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Davidlohr Bueso <davidlohr@...com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	dvhart@...ux.intel.com, peterz@...radead.org,
	paulmck@...ux.vnet.ibm.com, efault@....de, jeffm@...e.com,
	torvalds@...ux-foundation.org, scott.norton@...com,
	tom.vaden@...com, aswin@...com, Waiman.Long@...com,
	jason.low2@...com
Subject: Re: [PATCH v2 4/4] futex: Avoid taking hb lock if nothing to wakeup


* Davidlohr Bueso <davidlohr@...com> wrote:

> On Tue, 2013-12-10 at 16:36 +0100, Ingo Molnar wrote:
> > * Davidlohr Bueso <davidlohr@...com> wrote:
> > 
> > > On Fri, 2013-12-06 at 19:26 +0100, Thomas Gleixner wrote:
> > > > On Tue, 3 Dec 2013, Davidlohr Bueso wrote:
> > > > > Signed-off-by: Waiman Long <Waiman.Long@...com>
> > > > > Signed-off-by: Jason Low <jason.low2@...com>
> > > > > Signed-off-by: Davidlohr Bueso <davidlohr@...com>
> > > > 
> > > > Who is the author of this? According to the SOB chains its Waiman, who
> > > > handed it down to Jason and it finally got sumbitted by you. Is that
> > > > correct?
> > > 
> > > This was a group effort for the original patchset -- things did change
> > > quite a bit for this particular patch in v2. Waiman and Jason helped
> > > review and test the original atomic ops code.
> > 
> > Then please put that into the credits (in the changelog and/or in the 
> > source code), and/or into copyright notices, etc. - but keep the 
> > SOB-chain the true route of the patch, where the primary author is the 
> > first in the SOB and where the person sending the patch is the last 
> > SOB. (the two are identical normally.)
> 
> Ok, I wasn't aware of that primary author rule, sorry. The exact 
> same thing would go for patch 2 then. Is this something you want me 
> to correct for this particular series, or to keep in mind for the 
> future?

Would be nice to fix it, the SOB chain is important for fine print 
reasons.

Thanks,

	Ingo
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